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MAX1700EEE+ |MAX1700EEEMAXN/a100avai1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters
MAX1701EEE+ |MAX1701EEEMAXN/a36avai1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters


MAX1700EEE+ ,1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC ConvertersELECTRICAL CHARACTERISTICS(CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT, V = 3.6V (Note 6); MA ..
MAX17010AETL+ ,Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op AmpApplicationsNotebook Computer DisplaysPGNDLCD Monitor PanelsCOMP SUPOrdering InformationAGNDPOSVLPA ..
MAX17010AETL+T ,Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Ampfeatures high output♦ Thermal-Overload Protectioncurrent (±150mA), fast slew rate (45V/µs), wide ba ..
MAX17010ETL+ ,Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op AmpELECTRICAL CHARACTERISTICS(V = V = +3V, Circuit of Figure 1, SUP = 8.5V, V = V = 30V, V = -10V, V = ..
MAX17014AETM+ ,Low-Cost Multiple-Output Power Supply for LCD TVsapplications High Efficiencyrunning directly from 12V supplies. 3ms Internal Soft-StartThe step-up ..
MAX17014AETM+T ,Low-Cost Multiple-Output Power Supply for LCD TVsApplications+Denotes a lead-free/RoHS-compatible package.LCD TV PanelsLCD Monitor PanelsDual Mode i ..
MAX4514EUK+T ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—+5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , unless ..
MAX4514EUK-T ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesFeaturesThe MAX4514/MAX4515 are single-pole/single-throw ♦ Available in SOT23-5 Package(SPST), CMOS ..
MAX4514EUK-T ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesMAX4514/MAX451519-1069; Rev 1; 5/05Low-Voltage, Low-On-Resistance,SPST, CMOS Analog Switches_______ ..
MAX4515CPA ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—+5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , unless ..
MAX4515CUK ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesELECTRICAL CHARACTERISTICS—+5V Supply(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T to T , unless ..
MAX4515CUK+T ,Low-Voltage, Low-On-Resistance, SPST, CMOS Analog SwitchesApplications♦ TTL/CMOS-Logic Compatible with +5V SupplyBattery-Operated EquipmentAudio and Video Si ..


MAX1700EEE+-MAX1701EEE+
1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters
General Description
The MAX1700/MAX1701 are high-efficiency, low-noise,
step-up DC-DC converters intended for use in battery-
powered wireless applications. They use a synchro-
nous-rectified pulse-width-modulation (PWM) boost
topology to generate 2.5V to 5.5V outputs from battery
inputs such as one to three NiCd/NiMH cells or one Li-
Ion cell. Both devices have an internal 1A, 130mΩN-
channel MOSFET switch and a 250mΩP-channel
synchronous rectifier.
With their internal synchronous rectifier, the MAX1700/
MAX1701 deliver 5% better efficiency than similar non-
synchronous converters. They also feature a pulse-
frequency-modulation (PFM) standby mode to improve
efficiency at light loads, and a 3μA shutdown mode.
The MAX1700/MAX1701 come in 16-pin QSOP pack-
ages (which occupy the same space as an 8-pin SO).
The MAX1701 includes two comparators to generate
power-good and low-battery warning outputs. It also
contains a gain block that can be used to build a linear
regulator using an external P-channel pass device.
For higher-power outputs, refer to the MAX1703. For
dual outputs (step-up and linear regulator), refer to the
MAX1705/MAX1706. For an on-board analog-to-digital
converter, refer to the MAX848/MAX849.
The MAX1701 evaluation kit is available to speed design
time.
Applications

Digital Cordless PhonesPersonal Communicators
PCS PhonesPalmtop Computers
Wireless HandsetsHand-Held Instruments
Two-Way Pagers
Feature
Up to 96% Efficiency1.1 VINGuaranteed Start-Up0.7V to 5.5V Input RangeUp to 800mA OutputStep-Up Output (adjustable from 2.5V to 5.5V)PWM/PFM Synchronous-Rectified TopologyExternal Clock or Internal 300kHz Oscillator3μA Logic-Controlled ShutdownPower-Good Output (MAX1701)Low-Battery Comparator (MAX1701)Uncommitted Gain Block (MAX1701)-Cell to 3-Cell, High-Power (1A),
Low-Noise, Step-Up DC-DC Converte

PGNDGNDFB
ONA
REF
ONB
POUT
OUT
INPUT
0.7V TO 5.5V
OFF
OFF
SYNC
PWM
PFM
OUTPUT
3.3V OR ADJ
UP TO 800mA
CLK/SEL
MAX1700
Pin Configurations

TOP VIEW
I.C.I.C.
POUT
OUT
PGND
I.C.
I.C.
I.C. = INTERNAL CONNECTION. LEAVE OPEN OR CONNECT TO GND
MAX1700
QSOP

I.C.
REF
I.C.
CLK/SEL
GND
ONB
ONA
Typical Operating Circuit

19-4759; Rev 1; 1/99
PART
MAX1700EEE
-40°C to +85°C
TEMP. RANGEPIN-PACKAGE

16 QSOP
EVALUATION KIT MANUAL
FOLLOWS DATA SHEET
Ordering Information
MAX1701EEE
-40°C to +85°C16 QSOP
Pin Configurations continued at end of data sheet.
-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(CLK/SEL = ONA = ONB= FB = PGND = GND, OUT = POUT, VOUT= 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF,= 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
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.
ONA, ONB, OUT, AO, POK, LBO to GND...................-0.3V, +6V
PGND to GND.....................................................................±0.3V
LX to PGND.....................................................-0.3V,VPOUT+0.3V
CLK/SEL, AIN, REF, FB, LBP, LBN, POUT to GND............-0.3V,
VOUT+0.3V...................................................................................
Continuous Power Dissipation (TA=+70°C)
16-QSOP (Derate 8.30mW/°C above +70°C)...............667mW
Operating Temperature Ranges
MAX1700EEE, MAX1701EEE...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
CLK/SEL = GND
CLK/SEL = GND
CLK/SEL = OUT
ILOAD< 1mA, TA= +25°C
P-channel
N-channel
VLX= VONB= VOUT= 5.5V
VLX= 0V, VOUT= 5.5V
VONB= 3.6V
CLK/SEL = OUT, No load to full load
CLK/SEL = OUT (MAX1701)
CLK/SEL = OUT (MAX1700)
(Note 4)
VOUT= 1.5V
VFB< 0.1V, CLK/SEL = OUT, VBATT= 2.4V,
includes load regulation error for 0A ≤ILX≤0.55A
Adjustable output, CLK/SEL = OUT, VBATT= 2.4V,
includes load regulation error for 0A ≤ILX≤0.55A
CLK/SEL = GND (MAX1701)
VFB= 1.25V
CLK/SEL = GND (MAX1700)
CONDITIONS
20120P-Channel Turn-Off Current250400550N-Channel Current Limit110013001600
Switch On-Resistance0.130.28
0.20.450.120LX Leakage Current0.120POUT Leakage Current140300
125250Supply Current in Low-Noise
Mode (Note 6)55110
Supply Current in Low-Power
Mode (Note 6)700.91.1Minimum Start-Up Voltage
(Note 2)0.75.5Input Voltage Range (Note 1)320Supply Current in Shutdown-1.6Load Regulation (Note 5)2.02.152.3Output Voltage Lockout
Threshold2.55.5Output Voltage Adjust Range
kHz40150300Frequency in Start-Up Mode3.173.303.38Output Voltage (Note 3)1.2101.241.255FB Regulation Voltage0.0120FB Input Current
UNITSMINTYPMAXPARAMETER

CLK/SEL = GND
CLK/SEL = OUT
DC-DCCONVERTER
DC-DC SWITCHES

MAX1701
MAX17000.120
Input High Voltage (Note 7)-Cell to 3-Cell, High-Power (1A),
Low-Noise, Step-Up DC-DC Converter
ELECTRICAL CHARACTERISTICS (continued)

(CLK/SEL = ONA = ONB= FB = PGND = GND, OUT = POUT, VOUT= 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF,= 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
-1μA < IREF< 50μA
IREF= 0
VAIN= 1.5V
ISINK= 1mA, VOUT= 3.6V or ISINK= 20μA, VOUT= 1V
To maintain input offset < ±5mV (at least one input must
be within this range)
IAO= 20μA
LBP falling, 15mV hysteresis
VOUT= VPOK= 5.5V
ISINK= 1mA, VOUT= 3.6V or ISINK= 20μA, VOUT= 1V
Rising VFB
Rising VOUT, VFB< 0.1V
10μA < IAO= 100μA
VAIN= 0.7V, IAO= 100μA
VAIN= 1.5V, VAO= 5.5V
CONDITIONS
515REF Load Regulation1.2371.2501.263Reference Output Voltage0.030.4LBO Output Low Voltage0.51.5LBN, LBP Common Mode
Range-5±0.55LBN, LBP Input Offset0.011POK High Leakage Current-3030AIN Input Current1.2371.251.263AIN Reference Voltage0.030.4POK Low Voltage1.11.121.14External Trip Level2.932.973.02Internal Trip Level
mmho5916Transconductance0.10.4AO Output Low Voltage0.011AO Output High Leakage
UNITSMINTYPMAXPARAMETER

VLBP= VLBN= 1.5V
VOUT= VLBO= 5V20LBN, LBP Input Current0.011LBO High Leakage
2.5V < VOUT< 5VmV0.25REF Supply Rejection
1.2V < VOUT< 5.5V, ONA and ONB0.2VOUT
1.2V < VOUT< 5.5V, ONA and ONB
2.5V < VOUT< 5.5V, CLK/SEL
0.8VOUT0.2VOUTInput Low Voltage (Note 7)
2.5V < VOUT< 5.5V, CLK/SELV0.8VOUTInput High Voltage (Note 7)
CLK/SEL = OUT
ONA, ONB, and CLK/SEL
kHz260300340Internal Oscillator Frequency-11Logic Input Current
kHz200400External Clock Frequency
Range808690Oscillator Maximum Duty Cycle100Maximum CLK/SEL Rise/Fall
Time200Minimum CLK/SEL Pulse Width
GAIN BLOCK (MAX1701)
POWER GOOD (MAX1701)
LOW-BATTERY COMPARATOR
REFERENCE
LOGIC AND CONTROL INPUTS
-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converters
ELECTRICAL CHARACTERISTICS (continued)

(CLK/SEL = ONA = ONB= FB = PGND = GND, OUT = POUT, VOUT= 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF,= -40°C to +85°C, unless otherwise noted.) (Note 8)
LBP falling, 15mV hysteresis
Rising VFB
Adjustable output, CLK/SEL = OUT, VBATT= 2.4V,
includes load regulation error for 0A ≤ILX≤0.55A
10μA < IAO< 100μA
IAO= 20μA
VFB< 0.1V, CLK/SEL = OUT, VBATT= 2.4V, includes load
regulation error for 0A ≤ILX≤0.55A
CLK/SEL = OUT
Rising VOUT, VFB< 0.1V
P-channel
N-channel
(Note 4)
VONB= 3.6V
CLK/SEL = GND (MAX1700)
CLK/SEL = OUT (MAX1700)
Internal Trip Level
CONDITIONS
-55LBN, LBP Input Offset1.11.14External Trip Level
mmho516Transconductance1.231.27
To maintain input offset < ±5mV (at least one input must
be within this range)
AIN Reference Voltage250600N-Channel Current Limit110018000.51.5LBN, LBP Common Mode
Range
IREF= 0V1.231.27Reference Output Voltage1.201.27FB Regulation Voltage3.173.38Output Voltage (Note 3)
Switch On-Resistance0.28
0.452.02.3Output Voltage Lockout
Threshold20Supply Current in Shutdown70Supply Current in Low-Power
Mode (Note 6)250Supply Current in Low-Noise
Mode (Note 6)
UNITSMINTYPMAXPARAMETER

CLK/SEL = GND (MAX1701)
CLK/SEL = OUT (MAX1701)
CLK/SEL = GND
CLK/SEL = OUT
CLK/SEL = GND
DC-DC CONVERTER
DC-DC SWITCHES
GAIN BLOCK (MAX1701)
POWER-GOOD (MAX1701)
LOW-BATTERY COMPARATOR (MAX1701)
REFERENCE
Input High Voltage (Note 7)-Cell to 3-Cell, High-Power (1A),
Low-Noise, Step-Up DC-DC Converter
Note 1:
Operating voltage. Since the regulator is bootstrapped to the output, once started it will operate down to 0.7V input.
Note 2:
Start-up is tested with the circuit of Figure 2.
Note 3:
In low-power mode (CLK/SEL = GND), the output voltage regulates 1% higher than low-noise mode (CLK/SEL = OUT or
synchronized).
Note 4:
The regulator is in start-up mode until this voltage is reached. Do not apply full load current.
Note 5:
Load regulation is measured from no-load to full load where full load is determined by the N-channel switch current limit.
Note 6:
Supply current from the 3.30V output is measured between the 3.30V output and the OUT pin. This current correlates
directly to the actual battery supply current, but is reduced in value according to the step-up ratio and efficiency. Set VOUT
= 3.6V to keep the internal switch open when measuring the current into the device.
Note 7:
ONA and ONBhave hysteresis of approximately 0.15xVOUT.
Note 8:
Specifications to -40°C are guaranteed by design and not production tested.
ELECTRICAL CHARACTERISTICS (continued)

(CLK/SEL = ONA = ONB= FB = PGND = GND, OUT = POUT, VOUT= 3.6V, MAX1701: AIN = LBN = GND, LBP = REF, = -40°C to +85°C, unless otherwise noted.) (Note 8)
CONDITIONS

2.5V < VOUT< 5.5V, CLK/SEL
1.2V < VOUT< 5.5V, ONA and ONB
0.2VOUTV0.2VOUTInput Low Voltage (Note 7)
1.2V < VOUT< 5.5V, ONA and ONB0.8VOUTInput High Voltage (Note 7)
ONA, ONB, and CLK/SEL
2.5V < VOUT< 5.5V, CLK/SEL-11Logic Input Current0.8VOUT
CLK/SEL = OUTkHz260340Internal Oscillator Frequency
UNITSMINTYPMAXPARAMETER
8092Oscillator Maximum Duty Cycle
kHz200400External Clock Frequency
Range
Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 3.3V)
X1700-01
LOAD CURRENT (mA)
(%
PFM
PWM
VIN = 0.9V
VIN = 1.2V
VIN = 2.4V
AX1700-02
EFFICIENCY vs. LOAD CURRENT
(VOUT = 5V)
LOAD CURRENT (mA)
(%
VIN = 1.2V
VIN = 2.4V
VIN = 3.6V
PFM
PWM
MAX1701
SHUTDOWN CURRENT
vs. INPUT VOLTAGE (V)
AX1770-03
INPUT VOLTAGE (V)
(m
T = 85°C
T = 25°C
T = -40°C
LOGIC AND CONTROL INPUTS
-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converters
Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)
REFERENCE VOLTAGE
vs. TEMPERATURE
X1700-04
TEMPERATURE (°C)
(V
REFERENCE VOLTAGE
vs. REFERENCE CURRENT
X1700-05
REFERENCE CURRENT (mA)
(V
PEAK INDUCTOR CURRENT
vs. OUTPUT VOLTAGE
AX1700-08
OUTPUT VOLTAGE (V)
(A
PFM
PWM
FREQUENCY vs. TEMPERATURE
AX1700-06
TEMPERATURE (°C)
(k
VOUT = 5V
VOUT = 3.3V
IOUT = 0mA, VOUT = 3.3V
A = VIN, 1.1V TO 2.1V, 1V/div
B = VOUT RIPPLE, 50mV/div, AC COUPLED
LINE-TRANSIENT RESPONSE

5ms/div
MAX1700-09
VIN = 1.1V, IOUT = 200mA, VOUT = 3.3V
A = LX VOLTAGE, 2V/div
B = INDUCTOR CURRENT, 0.5A/div
HEAVY-LOAD SWITCHING WAVEFORMS
(VOUT = 3.3V)

VOUTs/div
MAX1700-08
START-UP INPUT VOLTAGE
vs. OUTPUT CURRENT
AX1700/01 TOC
06a
OUTPUT CURRENT (mA)
IN
(V
NO-LOAD START-UP:
1.0V AT -40°C
0.79 AT +25°C
0.64V AT +85°C
CONSTANT-CURRENT LOAD
VOUT = 3.3V
L = 10mH
D1 = MBR0520L
TA = -40°C
TA = +25°C
TA = +85°C
-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converter
VIN = 1.2V, VOUT = 3.3V, COUT = 440mF
A = VOUT RIPPLE, 200mV/div, AC COUPLED
B = LOAD CURRENT, 50mA TO 400mA, 0.2A/div,
PULSE WIDTH = 416ms
DECT LOAD-TRANSIENT RESPONSE

3.3V
2ms/div
MAX1700-13
Typical Operating Characteristics (continued)

(Circuit of Figure 1, TA= +25°C, unless otherwise noted.)
NOISE SPECTRUM
(VOUT = 3.3V, VIN = 1.2V, RLOAD = 50W)
(m
A = VON1, 2V/div
B = VOUT, 1V/div
C = INPUT CURRENT, 0.2A/div
POWER-ON DELAY
(PFM MODE)
0mA
3.3V
5ms/div
MAX1700-11
VIN = 3.6V, VOUT = 5V, COUT = 440mF
A = VOUT RIPPLE, 200mV/div, AC COUPLED
B = LOAD CURRENT, 100mA TO 1A, 0.5A/div,
PULSE WIDTH = 577ms
GSM LOAD-TRANSIENT RESPONSE

1ms/div
MAX1700-12
VIN = 1.1V, VOUT = 3.3V
A = LOAD CURRENT, 0mA TO 200mA, 0.2A/div
B = VOUT RIPPLE, 50mV/div, AC COUPLED
LOAD-TRANSIENT RESPONSE

200mA
2ms/div
MAX1700-10
-Cell to 3-Cell, High-Power (1A), Low-Noise, Step-Up DC-DC Converters
Pin Description
Low-Battery Comparator Non-Inverting InputLBP—Low-Battery Comparator Inverting InputLBN—Reference Output. Bypass with a 0.22μF capacitor to GND. REF can source up to
50μA.REF3
Switching-Mode Selection and External-Clock Synchronization Inputs.CLK/SEL=Low: Low-power, delivers up to 10% of full load current.CLK/SEL=High: High-power PWM mode. Full output power available. Operates in
low-noise, constant-frequency mode.CLK/SEL=External Clock: High-power PWM mode with the internal oscillator
synchronized to the external clock.
Turning on with CLK/SEL=0V also serves as a soft-start function since peak inductor
current is limited to 25% of that allowed in PWM mode.
CLK/SEL4GroundGND5Power-Okay Comparator Output. Open drain N-channel output is low when VOUTis
10% below regulation point. No internal delay is provided.POK—Shutdown Input. When ONB=high and ONA=low, the IC is off and the load is connect-
ed to the battery through the Schottky diode.ONB7Turn ON Input. When ONA=high or ONB=low, the IC turns on.ONA8Gain Block Output. This open-drain output sinks when VAINAIN to AO is 9mmhos.AIN—
DC-DC Converter Dual-Mode Feedback Input. For a fixed output voltage of +3.3V,
connect FB to GND. For adjustable output, connect a divider between POUT and GND
to set the output voltage in the range of 2.5V to 5V.11Source of N-Channel Power MOSFET Switch. Connect to high-current ground path.PGND12Drain of P-Channel Synchronous Rectifier and N-Channel SwitchLX13Output Sense Input. Power source for the IC.OUT14Source of P-Channel Synchronous Rectifier MOSFET Switch. Connect an external
Schottky diode from LX to POUT.POUT15Low-Battery Comparator Output. Open-drain N-channel output is low when LBN > LBP
Input hysteresis is 15mV.LBO—
PIN
MAX1701MAX1700
FUNCTIONNAME
Internal Connection. Leave open or connect to GND.I.C.1, 2, 6, 9,
10, 16
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