MAX8660ETL+T ,High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile ApplicationsApplications V 2: 3.3V, 2. 5V, 1.8V MAX8660ETL/V+ 40 Thin QFNV 3: 1.4V ( d efault) PDAs, Palmtop ..
MAX8661ETL+T ,High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applicationsapplications processors (APs) in smartFamily of Processorscellular phones, PDAs, Internet appliance ..
MAX8662ETM+ ,Power-Management ICs for Single-Cell, Li+ Battery-Operated DevicesELECTRICAL CHARACTERISTICS (Input Limiter and Battery Charger)(V = 5V, V = 4V, V = 0V, V = 5V, R = ..
MAX8662ETM+T ,Power-Management ICs for Single-Cell, Li+ Battery-Operated DevicesMAX8662/MAX866319-0732; Rev 2; 12/10Power-Management ICs forSingle-Cell, Li+ Battery-Operated Devic ..
MAX8663ETL+ ,Power-Management ICs for Single-Cell, Li+ Battery-Operated DevicesFeaturesThe MAX8662/MAX8663 power-management ICs♦ Two 95%-Efficient 1MHz Buck Regulators(PMICs) are ..
MAX8663ETL+T ,Power-Management ICs for Single-Cell, Li+ Battery-Operated DevicesApplications5mm x 5mm x 0.8mm+Denotes a lead(Pb)-free/RoHS-compliant package.Smart Phones and PDAs* ..
MB84256A-10LLP , CMOS 256K-BIT LOW POWER SRAM
MB84256A-10LPF , CMOS 256K-BIT LOW POWER SRAM
MB84VD21183EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD21194EM-70PBS , Stacked MCP (Multi-Chip Package) FLASH MEMORY & SRAM CMOS
MB84VD22181FM-70PBS , 32M (X16) FLASH MEMORY & 4M (X16) STATIC RAM
MB84VD22182EE-90 ,32M (x 8/x16) FLASH MEMORY & 4M (x 8/x16) STATIC RAMFUJITSU SEMICONDUCTORDS05-50204-2EDATA SHEETStacked MCP (Multi-Chip Package) FLASH MEMORY & SRAMCMO ..
MAX8660AETL+-MAX8660AETL+T-MAX8660BETL+T-MAX8660ETL+-MAX8660ETL+T-MAX8661ETL+T
High-Efficiency, Low-IQ, PMICs with Dynamic Voltage Management for Mobile Applications
General DescriptionThe MAX8660/MAX8661 power management ICs
(PMICs) power applications processors (APs) in smart
cellular phones, PDAs, Internet appliances, and other
portable devices.
Four step-down DC-DC outputs, three linear regulators,
and an 8th always-on LDO are integrated with power-
management functions. Two dynamically controlled DC-
DC outputs power the processor core and internal mem-
ory. Two other DC-DC converters power I/O, memory,
and other peripherals. Additional functions include on/off
control for outputs, low-battery detection, reset output,
and a 2-wire I2C serial interface. The MAX8661 functions
the same as the MAX8660, except it lacks the REG1
step-down regulator and the REG7 linear regulator.
All step-down DC-to-DC outputs use fast 2MHz PWM
switching and tiny external components. They automati-
cally switch from PWM to high-efficiency, light-load
operation to reduce operating current and extend bat-
tery life. In addition, a forced-PWM option allows low-
noise operation at all loads. Overvoltage lockout pro-
tects the device against inputs up to 7.5V.
ApplicationsPDAs, Palmtops, and Wireless Handhelds
Smart Cell PhonesPersonal Media Players
Portable GPS NavigationDigital Cameras
FeaturesOptimized for Marvell’s PXA300 and Armada 100
Family of ProcessorsProtected to 7.5V—Shutdown Above 6.3VFour Synchronous Step-Down Converters
REG1, REG2, REG3, REG4Four LDO Regulators
REG5, REG6, REG7, REG82MHz Switching Allows Small ComponentsLow, 20µA Deep-Sleep CurrentLow-Battery Monitor and Reset Output
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamicoltage Management for Mobile Applications
Ordering Information19-0587; Rev 3; 6/10
EVALUATION KIT
AVAILABLE
PARTPIN-PACKAGEOPTIONS
MAX8660ETL+40 Thin QFN1: 3.3V , 3.0V , 2.85V 2: 3.3V , 2.5V , 1.8V 3: 1.4V ( d efaul t) 4: 1.4V ( d efaul t)
MAX8660ETL/V+40 Thin QFN1: 3.3V , 3.0V , 2.85V 2: 3.3V , 2.5V , 1.8V 3: 1.4V ( d efaul t) 4: 1.4V ( d efaul t)
Note:All devices are specified over the -40°C to 85°C operating
temperature range.
+Denotes lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
MAX8660ETL+
MAX8660AETL+
MAX8660BETL+
MAX8661ETL+
THIN QFN
5mm x 5mm x 0.8mmTOP VIEW
LX4
PG4
SET2
IN5
LX3EN5RAMPPV3RSOV3MRLBR2
PG1 (GND)6728293026242322
LX1 (N.C.)
PV1 (PV)
IN8
PG2
LX2
PV4
PG3EN1 (GND)PV2
V1 (GND)
SET1 (GND)
LBO
SDA
SCL
SRAD
AGNDEN2V8
IN67 (IN6)
V7 (N.C.)
LBF10
EN34
EXPOSED PAD (EP)
Pin ConfigurationVCC_IO: (PIN PROG)
3.3V/3.0V/2.85V AT 1.2A
VCC_MEM: (PIN PROG)
1.8V/2.5V/3.3V AT 0.9A
VCC_APPS: (I2C PROG)
0.725V TO 1.8V, DVM AT 1.6A
VCC_SRAM: (I2C PROG)
0.725V TO 1.8V, DVM AT 0.4A
VCC_MVT: (I2C PROG)
1.7V TO 2.0V AT 200mA
VCC_CARD1: (I2C PROG)
1.8V TO 3.3V AT 500mA
VCC_CARD2: (I2C PROG)
1.8V TO 3.3V AT 500mA
RSO
LBR
LBO
EN1,2,5
EN34
nRESET
nBATT_FAULT
SYS_EN
PWR_EN
MAIN BATTERYINVCC_BBATT:
3.3V ALWAYS ON AT 30mA
LBF
I2C
INTERFACE
SCL
SDA
MAX8660
Simplified Functional Diagram
Ordering Information continued at end of data sheet.
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamicoltage Management for Mobile Applications
Table of ContentsGeneral Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Simplified Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Maxim vs. Marvell PXA3xx Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Step-Down DC-DC Converters (REG1–REG4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
REG1 (VCC_IO) Step-Down DC-DC Converter (MAX8660 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
REG2 (VCC_IO, VCC_MEM) Step-Down DC-DC Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
REG3 (VCC_APPS) Step-Down DC-DC Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
REG4 (VCC_SRAM) Step-Down DC-DC Converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
REG1–REG4 Step-Down DC-DC Converter Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
REG1–REG4 Synchronous Rectification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
REG1/REG2 100% Duty-Cycle Operation (Dropout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Linear Regulators (REG5–REG8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
REG5 (VCC_MVT, VCC_BG, VCC_OSC13M, VCC_PLL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
REG6/REG7 (VCC_CARD1, VCC_CARD2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
REG8 (VCC_BBATT) Always-On Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Ramp-Rate Control (RAMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Power Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Enable Signals (EN_, PWR_EN, SYS_EN, I2C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
REG3/REG4 Enable (EN34, EN3, EN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Power-Up and Power-Down Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Marvell PXA3xx Power Configuration Register (PCFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Voltage Monitors, Reset, and Undervoltage-Lockout Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Undervoltage and Overvoltage Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Reset Output (RSO) and MRInput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Low-Battery Detector (LBO, LBF, LBR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Internal Off-Discharge Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Thermal-Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
I2C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Data Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
START and STOP Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Acknowledge Bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamicoltage Management for Mobile Applications
Table of Contents (continued)Design Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Setting the Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Inductor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Input Capacitor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Output Capacitor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Step-Down Converter Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
PCB Layout and Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Chip Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Tables
Table 1. Maxim and Marvell PXA3xx Power Domain Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Table 2. Maxim and Marvell PXA3xx Digital Signal Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 3. SET1 Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 4. SET2 Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Table 5. Enable Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Table 6. Truth Table for V3/V4 Enable Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Table 7. Power Modes and Corresponding Quiescent Operating Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Table 8. Internal Off-Discharge Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Table 9. I2C Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Table 10. DVM Voltage Change Register (VCC1, 0x20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Table 11. Serial Codes for V3 (VCC_APPS) and V4 (VCC_SRAM) Output Voltages. . . . . . . . . . . . . . . . . . . . . .37
Table 12. Serial Codes for V5 Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Table 13. Serial Codes for V6 and V7 Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Figures
Figure 1. Example MAX8660 Connection to Marvell PXA3xx Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 2. Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Figure 3. Typical Applications Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Figure 4. Soft-Start and Voltage-Change Ramp Rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Figure 5. V3/V4 Enable Logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Figure 6. Power-Up Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Figure 7. Low-Battery Detector Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Figure 8. START and STOP Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 9. Acknowledge Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Figure 10. Slave Address Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamicoltage Management for Mobile Applications
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VIN= VIN5= VIN67= VIN8= 3.6V, Figure 3, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1:LX_ has internal clamp diodes to PG_ and PV_. Applications that forward bias these diodes must take care not to exceed
the IC’s package power-dissipation limits.
IN, IN5, IN6, IN67, EN2, EN34, EN5, LBO, RSO, MR, SET1,
SET2, V1, V2, V3, V4, SCL, SDA,
SRAD to AGND..................................................-0.3V to +7.5V
LBF, LBR, EN1, RAMP to AGND.................-0.3V to (VIN+ 0.3V)
V8 to AGND................................................-0.3V to (VIN8+ 0.3V)
V5 to AGND................................................-0.3V to (VIN5+ 0.3V)
V6, V7 to AGND........................................-0.3V to (VIN67+ 0.3V)
PV1 to PG1............................................................-0.3V to +7.5V
PV2 to PG2............................................................-0.3V to +7.5V
PV3 to PG3............................................................-0.3V to +7.5V
PV4 to PG4............................................................-0.3V to +7.5V
PV, PV1, PV2, PV3, PV4, IN8 to IN........................-0.3V to +0.3V
LX1 Continuous RMS Current (Note 1).................................2.3A
LX2 Continuous RMS Current (Note 1).................................2.0A
LX3 Continuous RMS Current (Note 1).................................2.6A
LX4 Continuous RMS Current (Note 1).................................1.0A
PG1, PG2, PG3, PG4, EP to AGND.......................-0.6V to +0.6V
GND to AGND ......................................................-0.3V to +0.3V
All REGx Output Short-Circuit Duration......................Continuous
Continuous Power Dissipation (TA= +70°C)
40-Pin Thin QFN (derate 35.7mW/°C above +70°C).....2857mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow).......................................+260°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSPV1, PV2, PV3, PV4, IN, IN8
Supply Voltage RangeVINPV1, PV2, PV3, PV4, IN, and IN8 must be
connected together externally2.66.0V
VIN rising2.2502.4002.550IN Undervoltage-Lockout
ThresholdVUVLOVIN falling2.2002.3502.525V
VIN rising6.206.356.50IN Overvoltage-Lockout
ThresholdVOVLOVIN falling6.006.156.30V
Only V8 on (deep-sleep
power mode)20
V1, V2, and V8 on;
V1 and V2 in normal (skip)
operating mode
V1, V2, V5, and V8 on
(sleep power mode);
V1 and V2 in normal (skip)
operating mode1, V 2, V 3, V 4, V 5, and V 8 onr un p ow er m od e) ;1, V 2, V 3, and V 4 i n nor m al ski p ) op er ati ng m od e
No load;
SDA = SCL = V81, V 2, V 3, V 4, V 5, V 6, V 7,
and V 8 ( al l on) ;1, V 2, V 3, and V 4 i n nor m al ski p ) op er ati ng m od e
Undervoltage lockout, VIN = 2.2V1.5
Input Current
IIN + IPV 1 +
IPV 2 + IPV 3 +
IPV 4 + IIN 5 +
IIN 67 + IIN 8
MAX8660/MAX8660A/MAX8660B/MAX8661
High-Efficiency, Low-IQ, PMICs with Dynamicoltage Management for Mobile Applications
ELECTRICAL CHARACTERISTICS (continued)(VIN= VIN5= VIN67= VIN8= 3.6V, Figure 3, TA= -40°C to +85°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSPWM Switching FrequencyfSW1.92.02.1MHz
REG1—SYNCHRONOUS STEP-DOWN DC-DC CONVERTER (MAX8660, MAX8660A, MAX8660B only)SET1 = IN, VPV1 = 4.2V, load = 600mA3.2503.3003.350
SET1 not connected, VPV1 = 3.6V,
load = 600mA2.9553.0003.045V1 Voltage
Accuracy (MAX8860/MAX8860B)V1
SET1 = AGND, VPV1 = 3.6V, load = 600mA2.8072.8502.893
SET1 = IN, VPV1 = 4.2V, load = 600mA2.4632.5002.538
SET1 not connected, VPV1 = 3.6V,
load = 600mA1.9702.0002.030V 1 V ol tag e Accur acy ( M AX 8660A) V1
SET1 = AGND, VPV1 = 3.6V, load = 600mA1.7731.8001.827
V1 Load RegulationLoad = 0 to 1200mA-1.5%/A
V1 Line Regulation0.15%/V
SET1 Input Leakage Current0.01µA
Load = 800mA (Notes 3, 4)150V1 Dropout VoltageLoad = 1200mA (Notes 3, 4)200mV
p-Channel On-ResistanceRP10.12Ω
n-Channel On-ResistanceRN10.15Ω
p-Channel Current-Limit
ThresholdILIM11.51.82.2A
n-Channel Zero-Crossing
Threshold25mA
n-Channel Negative Current LimitForced-PWM mode only-975mA
REG1 Maximum Output CurrentIOUT12.6V ≤ VPV1 ≤ 6V (Note 5)1.2A
V1 Bias Current5µA
TA = +25°C-2±0.03+2
LX1 Leakage Current
VPV1 = 6V, LX1 =
PG1 or PV1,
VEN1 = 0VTA = +85°C±0.2
Soft-Start Ramp Rate
(MAX8660/MAX8860B)
To V1 = 3.3V (total ramp time is 450µs for
all V1 output voltages)579mV/µs
Soft-Start Ramp Rate
(MAX8660A)
To V1 = 2.5V (total ramp time is 450µs for
all V1 output voltages)357mV/µs
V5 to V1 Enable TimetVMHVSH1Figure 6350µs
Internal Off-Discharge Resistance650Ω
Minimum Duty CycleForced-PWM mode only, min duty cycle in
skip mode is 0%16.7%
Maximum Duty Cycle100%
