MAX8516EUB+ ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO RegulatorsFeaturesThe MAX8516/MAX8517/MAX8518 low-dropout linear ● 1.425V to 3.6V Input Voltage Rangeregulato ..
MAX8516EUB+ ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO RegulatorsApplicationsMAX8516MAX8517● Servers ● Post RegulatorsMAX8518● Storage ● NotebooksPOWER-ON RESET4.7µ ..
MAX8516EUB+ ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO RegulatorsApplicationsMAX8516MAX8517● Servers ● Post RegulatorsMAX8518● Storage ● NotebooksPOWER-ON RESET4.7µ ..
MAX8516EUB+T ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO RegulatorsElectrical Characteristics(Circuit of Figure 1. V = +1.8V, V = +1.5V, EN = IN, I = 1mA, T = -40°C t ..
MAX8517EUB+ ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulatorsfeatures a power-OK (POK) output that /V Denotes an automotive qualified part. transitions high whe ..
MAX8517EUB+T ,1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulatorsfeatures include MAX8517EUB -40°C to +85°C 10 µMAXa logic-controlled shutdown mode, short-circuit p ..
MB81C81A-35 ,CMOS 256K-BIT HIGH-SPEED SRAMMay 1990 00
Edition1.0 FUJITSU
M38 1 C8 1A-25/-35
CMOS 256K-BI T HIGH-SPEED SRAM
256K Words ..
MB81F643242C-10FN ,4 x 512K x 32 bit synchronous dynamic RAMFUJITSU SEMICONDUCTORADVANCED INFO. AE0.1EDATA SHEETMEMORYCMOS4 · 512 K · 32 BITSYNCHRONOUS DYNAMIC ..
MB81F643242C-10FN ,4 x 512K x 32 bit synchronous dynamic RAMfeatures a fully synchronous operation referenced to a positive edge clock whereby all operations a ..
MB81N643289-60FN ,8 x 256K x 32 bit double data rate FCRAMapplications where large memory density and high effective bandwidth arerequired and where a simple ..
MB8264A-10 , MOS 65536-BIT DYNAMIC RANDOM ACCESS MEMORY
MB8264A-10 , MOS 65536-BIT DYNAMIC RANDOM ACCESS MEMORY
MAX8516EUB-MAX8516EUB+-MAX8516EUB+T-MAX8517EUB+-MAX8517EUB+T
1.425V to 3.6V Input, 1A, 0.2V Dropout LDO Regulators
General DescriptionThe MAX8516/MAX8517/MAX8518 low-dropout linear
regulators operate from input voltages as low as 1.425V
and are able to deliver up to 1A of continuous output cur-
rent with a maximum dropout voltage of only 200mV. The
output voltage can be set from 0.5V to (VIN - 0.2V) and
is 1.4% accurate over load and line variations, from 0°C
to +85°C.
These regulators use small, 1μF ceramic input capacitors and 4.7μF ceramic output capacitors to deliver 1A out-
put current. High bandwidth provides excellent transient
response and limits the output voltage deviation to 45mV for a 20mA to 1A load step, with only a 4.7μF ceramic out-
put capacitor, and the voltage deviations can be reduced
further by increasing the output capacitor.
Designed with an internal p-channel MOSFET pass
transistor, the MAX8516/MAX8517/MAX8518 feature low 340μA (typ) supply current during dropout conditions.
Soft-start reduces inrush current. Other features include
a logic-controlled shutdown mode, short-circuit protection,
and thermal-overload protection.
The MAX8517 features a power-OK (POK) output that
transitions high when the regulator output is within ±10%
of its nominal output voltage. The MAX8518 features a
150ms power-on reset output.
The parts are packaged in a 10-pin μMAX® package that
includes an exposed pad for optimal power dispation.
Applications
Features●1.425V to 3.6V Input Voltage Range●Guaranteed 200mV Dropout at 1A Output Current●±1.4% Output Accuracy Over Load, Line, and emperature (0°C to +85°C), ±0.6% Initial Accuracy●Compatible with Ceramic Capacitors●Fast Transient Response●320μA Operating Supply Current●<25μA Shutdown Supply Current●Short-Circuit Protection●Thermal-Overload Protection●Soft-Start Limits Inrush Current
μMAX is a registered trademark of Maxim Integrated Products, Inc.●Servers●Storage●Networking●Base Stations●Optical Modules●Post Regulators●Notebooks●PDAs●ATE
0µMAX mm x 5m
PARTTEMP RANGEPIN-PACKAGE
MAX8516EUB-40°C to +85°C10 µMAX
MAX8517EUB-40°C to +85°C10 µMAX
MAX8517EUB/V+-40°C to +85°C10 µMAX
MAX8518EUB-40°C to +85°C10 µMAX
/V Denotes an automotive qualified part. +Denotes lead(Pb)-free/RoHS-compliant package.
MAX8516
MAX8517
MAX85181µF
4.7µF
INPUT
1.425V TO 3.6V
OUTPUT
0.5V TO (VIN - 0.2V), 1A
POWER-ON RESET
POWER-OK
OFF
IN_
POR (MAX8518)
POK (MAX8517)GND
OUT_
N.C.
OUT
OUTN.C.
MAX8516µMAX
TOP VIEW
GNDN.C.
N.C.
OUT
OUTPOK
MAX8517µMAX
GNDN.C.
N.C.
OUT
OUTN.C.
MAX8518µMAX
GNDPOR
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Ordering Information
Typical Operating Circuit
Pin Conigurations
EVALUATION KIT AVAILABLE
IN, EN, POK (MAX8517), POR (MAX8518), FB to GND ........................................................-0.3V to +4.0VOUT to GND .................................................-0.3V to (IN + 0.3V)
Output Short-Circuit Duration ....................................Continuous
Continuous Power Dissipation
(TA = +70°C, EP soldered to PC board ground) 10-Pin μMAX (derate 10.3mW/°C above +70°C) ........824mW
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 (soldering, 10s) ..........................+240°C
(Circuit of Figure 1. VIN = +1.8V, VOUT = +1.5V, EN = IN, IOUT = 1mA, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETERCONDITIONSMINTYPMAXUNITSInput Voltage Range1.4253.600V
Input Undervoltage LockoutVIN rising, 70mV hysteresis1.321.351.38V
OUTOutput Voltage Range0.53.4V
Load RegulationIOUT = 1mA to 1A0.1%/A
Line RegulationVIN = 1.425V to 3.6V, VOUT = 1.225V, IOUT = 1mA-0.150+0.15%/V
Dropout Voltage (VIN - VOUT)VIN = 1.425V, IOUT = 1A, VFB = 480mV100200mV
Current LimitVIN = 3.6V, VOUT = 3V, VFB = 480mV1.622.4A
Output Shutdown LeakageVIN = 3.6V, VOUT = 0, VEN = 00.2525µA
FB Threshold Accuracy
IOUT = 10mA, TA = +85°C497500503VOUT = 1.225V to 3V, VIN = VOUT + 0.2V to 3.6V,
IOUT = 1mA to 1A493507
FB Input Bias CurrentVFB = 0.5V, VIN = 3.6V0.0011µA
GNDGND Supply CurrentVIN = 3.6V, VOUT = 3V, IOUT = 100mA320µADropout, VIN = 3.6V, VFB = 480mV340600
GND Shutdown CurrentVIN = 3.6V, EN = GND0.2525µA
POK (MAX8517 ONLY)POK ThresholdVFB moving out of regulation,
VHYS = 10mV, IN = 1.425V to 3.6VFB high540550560mVFB low440450460
POK Output Voltage LowVFB = 0.4V or 0.6V, IPOK = 1mA25200mV
POK Output Current HighVPOK = 3.6V0.0011µA
POK Fault Delay TimeFrom FB to POK2550100µs
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Absolute Maximum RatingsStresses 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.
Electrical Characteristics
(Circuit of Figure 1. VIN = +1.8V, VOUT = +1.5V, EN = IN, IOUT = 1mA, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
Note 1: Specifications to TA = -40°C are guaranteed by design, not production tested.
Note 2: Measurements at high current are pulse tested, such that the junction temperature is ambient temperature. Minimum supply
voltage for output accuracy must be at least 1.425V.
(Circuit of Figure 1, VIN = +1.8V, VOUT = +1.5V, IOUT = 1A, COUT = 4.7μF, CIN = 1μF, TA = +25°C.)
PARAMETERCONDITIONSMINTYPMAXUNITS
POR (MAX8518 ONLY)POR Reset ThresholdVFB falling, VHYS = 10mV, VIN = 1.425V to 3.6V440450460mV
POR Output Voltage LowVFB = 0.4V or 0.6V, IPOR = 1mA25200mV
POR Output Current HighVPOR = 3.6V0.0011µA
POR Rising Delay TimeFrom FB to POR105150210ms
Enable Input ThresholdVIN = 1.425V to 3.6VEN rising1.2VEN falling0.4
Enable Input Bias CurrentVEN = 0 or 3.6V-1+1µA
THERMAL SHUTDOWNThermal-Shutdown ThresholdOutput on or offTJ rising+165°CTJ falling+150
OUTPUT TRANSIENTLoad TransientIOUT = 20mA to 1A to 20mA, tRISE = tFALL = 1µs3%
Line TransientδVIN = 0.5V, tRISE = tFALL = 5µs3%
OUTPUT VOLTAGE
vs. LOAD CURRENTMAX8516/17/18 toc02
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
TA = +85°C
TA = +25°C
TA = -40°C
GROUND CURRENT
vs. INPUT VOLTAGEMAX8516/17/18 toc03
INPUT VOLTAGE (V)
GROUND CURRENT (µA)
ILOAD = 1A
ILOAD = 0.5A
ILOAD = 0A
OUTPUT VOLTAGE
vs. INPUT VOLTAGEMAX8516/17/18 toc01
INPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
TA = -40°C TO +85°C
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Electrical Characteristics (continued)
Typical Operating Characteristics
(Circuit of Figure 1, VIN = +1.8V, VOUT = +1.5V, IOUT = 1A, COUT = 4.7μF, CIN = 1μF, TA = +25°C.)
DROPOUT VOLTAGE
vs. LOAD CURRENTMAX8516/17/18 toc05
LOAD CURRENT (mA)
DROPOUT VOLTAGE (mV)
LINE INPUT TRANSIENT
(VIN = +1.8V TO +2.5V, ILOAD = 1A)
MAX8516/17/18 toc06
100µs/div
VOUT
AC-COUPLED
20mV/div
VIN
AC-COUPLED
0.5V/div
LOAD-TRANSIENT RESPONSE
(ILOAD = 0.1A TO 1A)MAX8516/17/18 toc07
40µs/div
VOUT
AC-COUPLED
50mV/div
ILOAD
1A/div
CIN = 220µF ELECTROLYTIC
CAP CLOSE TO IN
SHUTDOWN RESPONSEMAX8516/17/18 toc08
100µs/div
VOUT
1V/div
2V/div
IIN
1A/div
GROUND CURRENT
vs. LOAD CURRENTMAX8516/17/18 toc04
LOAD CURRENT (mA)
GROUND CURRENT (µA)
TA = +25°C
TA = -40°C
TA = +85°C
PSRR vs. FREQUENCY (MAX8516)MAX8516/17/18 toc09
PSRR (dB)
ILOAD = 100mA
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Typical Operating Characteristics (continued)
(Circuit of Figure 1, VIN = +1.8V, VOUT = +1.5V, IOUT = 1A, COUT = 4.7μF, CIN = 1μF, TA = +25°C.)
FB VOLTAGE vs. TEMPERATUREMAX8516/17/18 toc10
TEMPERATURE (°C)
FB VOLTAGE (mV)3510-15
ILOAD = 10mA
OUTPUT RIPPLE VOLTAGEMAX8516/17/18 toc11
100µs/div
VOUT
AC-COUPLED
1mV/div
OVERCURRENT THRESHOLD
vs. TEMPERATUREMAX8516/17/18 toc12
TEMPERATURE (°C)
OVERCURRENT THRESHOLD (A)3510-15
SHORT-CIRCUIT CURRENT
MAX8516/17/18 toc13
100µs/div
VOUT
1V/div
IOUT
2A/div
CASE TEMPERATURE
vs. LOAD CURRENTMAX8516/17/18 toc14
CASE TEMPERATURE (°C)
VIN = 2.5V; TA = +25°C
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Typical Operating Characteristics (continued)
PINNAMEDESCRIPTIONMAX8516MAX8517MAX851811ENEnable Input. Set low to place the device in low-current shutdown mode. Set
high for normal operation.
2, 32, 32, 3INRegulator Input. VIN can range from +1.425V to +3.6V. Bypass with a 1µF or
higher ceramic capacitor to GND.
4, 5, 105, 104, 10N.C.No Connection. Pin 10 is internally pulled down to GND with a 10kΩ resistor. Leave loating.66GNDGround77FBFeedback Pin. Connect to output through a voltage-divider to set the output.
8, 98, 98, 9OUTRegulator Output. Bypass with a 4.7µF ceramic capacitor to GND (a smaller
capacitor can be used if maximum load is less than 1A, i.e., COUT = IOUT (max) x (1µF/200mA).4—POK
Power-OK Output (MAX8517 Only). Open-drain output. Connect to a positive
supply with a pullup resistor. If not used, leave pin unconnected. See the Detailed Description.—5POR
Power-On Reset Output. Open-drain output. Connect to a positive supply
with a pullup resistor. If not used, leave pin unconnected (see the Detailed Description for more details).GNDExposed Pad on the Underside of the Package. Solder to the ground plane for
proper heat dissipation.
MAX8516
MAX8517
MAX8518POK
(MAX8517 ONLY)
POR
(MAX8518 ONLY)
GND
REF
OVERTHERMAL
PROTECTION
OVERTHERMAL
PROTECTIONEN
UNDERVOLTAGE
LOCKOUT
THRESHOLD
0.55V
0.45V
0.50VERROR AMP
WITH
SOFT-START
MOS DRIVER
WITH ILIMIT
OUT
MAX8516/MAX8517/
MAX8518
1.425V to 3.6V Input, 1A,
0.2V Dropout LDO Regulators
Pin Description
Functional Diagram
