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Maxim > Solutions > Computers: Desktops, Workstations, and Servers

I/O Power

DATA SHEETS
Display Title / Parts Key Advantages
QV    6A, 2MHz Step-Down Regulator with Integrated Switches
MAX15039

Smallest, Most Efficient, 3A Step-Down Regulator Switches Frequencies Up to 2.4MHz
QV    4A, 2MHz Step-Down Regulator with Integrated Switches
MAX15038

Smallest, Most Efficient, 3A Step-Down Regulator Switches Frequencies Up to 2.4MHz
QV  PDF Two-/Four-Channel, I²C, 7-Bit Sink/Source Current DAC
DS4422, DS4424

Low-Cost, Sink/Source Current DACs Simplify Power-Supply Margin Testing
QV  PDF 3A, 2MHz Step-Down Regulator with Integrated Switches
MAX8643A

Smallest, Most-Efficient 3A Step-Down Regulator Up to a 2.4MHz Frequency
QV  PDF 12V, 8A, 1.2MHz, Step-Down Regulator
MAX8654

A Broad Input Voltage (+4.5V to +12V) Step-Down Regulator with Integrated MOSFETs that Offers a Wealth of Features and Excellent Design Flexibility for High-Current (< 10A), High-Power Density POL Supplies
QV  PDF MAX5089 Evaluation Kit
MAX5089EVKIT
QV  PDF 1A, 40V, MAXPower Step-Down DC-DC Converters
MAX5080, MAX5081
QV  PDF Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications
MAX5066
QV  PDF 0.6V to 5.5V Output, Parallelable, Average-Current-Mode DC-DC Controllers
MAX5060, MAX5061
QV  PDF 2.2MHz, Dual-Output Buck or Boost Converter with Internal Power MOSFETs
MAX5073
QV  PDF Low-Dropout, Wide-Input-Voltage, Step-Down Controllers
MAX8597, MAX8598, MAX8599
QV  PDF High-Current, Low-Voltage Linear Regulator with Power-Limited, External MOSFET
MAX8704
QV  PDF Evaluation Kit for the MAX8544
MAX8544EVKIT
QV  PDF 3V to 28V Input, Low-Cost, Hysteretic Synchronous Step-Down Controllers
MAX8576, MAX8577, MAX8578, MAX8579
QV  PDF Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8543, MAX8544
QV  PDF Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies
MAX8537, MAX8538, MAX8539
QV  PDF 4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications
MAX8553, MAX8554

4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications Offer Fastest Transient Response
QV  PDF Dual 180° Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR
MAX1858A, MAX1875A, MAX1876A
QV  PDF 3A, 1MHz, 1% Accurate, Internal Switch Step-Down Regulator with Power-OK
MAX8505
QV  PDF 2.2MHz, 2A Buck Converters with an Integrated High-Side Switch
MAX5088, MAX5089

Up to 2.2MHz Switching Frequency Prevents Harmonics from Interfering in the ADSL2+ and Automotive AM Radio Frequency Bands
QV  PDF 3A, 2MHz Step-Down Regulator with Integrated Switches
MAX8643

Smallest, Most Efficient 3A Step-Down Regulator Up to a 2.4MHz Frequency
QV  PDF Highly Integrated, 25A, Wide-Input, Internal MOSFET, Step-Down Regulator
MAX8655

First Step-Down DC-DC Converter with +4.5V to +28V Input Voltage Range
and Up to 1.2MHz Programmable Switching Frequencies
QV  PDF Parallelable, Clamped Two-Switch Power-Supply Controller IC
MAX5051

Parallelable, Clamped, Two-Switch Power-Supply Controller IC for High-Efficiency Power Supplies
QV  PDF 500mA, 76V, High-Efficiency, MAXPower Step-Down DC-DC Converter
MAX5033

500mA, 76V, High-Efficiency, MAXPower™ Step-Down DC-DC Converter Consumes Only 350µA Quiescent Current at No Load
QV  PDF Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit
MAX8545, MAX8546, MAX8548

2.7V to 28V Input, 15A, Step-Down, DC-DC Controllers for Desktop and Graphic Card Supplies have Foldback Current Protection
QV  PDF Current-Mode PWM Controllers with Programmable Switching Frequency
MAX15000, MAX15001

Isolated/Nonisolated Current-Mode PWM Controllers in Tiny 10-Pin µMAX Packages with Adjustable Frequency from 12.5kHz to 625kHz
QV  PDF 2-Wire-Interfaced 8-Bit I/O Port Expander with Reset
MAX7310

2-Wire-Interfaced 8-Bit I/O Port Expander with Reset can Sink Up to 30mA per Port for SMBus™-Compatible and I²C-Compatible Applications
QV  PDF 3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-Down Regulator with Dynamic Output Voltage Control
MAX1536

3.6A, 1.4MHz, Low-Voltage, Internal Switch Step-Down Regulator with Dynamic Output-Voltage Control
QV  PDF High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers
MAX1534, MAX1534ETE

High-Efficiency, Triple-Output, Keep-Alive Power Supply for Notebook Computers
QV  PDF 1MHz, 1% Accurate, 6A Internal Switch Step-Down Regulators
MAX1945, MAX1945R, MAX1945S

Smallest 6A, 1MHz, 1%-Accurate Internal Switch Step-Down DC-DC
QV  PDF 1MHz, All-Ceramic, 2.6V to 5.5V Input, 2A PWM Step-Down DC-to-DC Regulators
MAX1951, MAX1952

1MHz, All-Ceramic, 2.6V to 5.5V Input, 2A PWM Step-Down DC-DC Regulators Require Only 10µF Ceramic Capacitor
QV  PDF Current-Mode PWM Controllers with an Error Amplifier for Isolated/Nonisolated Power Supplies
MAX5052, MAX5052A, MAX5052B, MAX5053, MAX5053A, MAX5053B

Isolated/Nonisolated Current-Mode PWM Controllers Work with Universal Offline, Telecom, or 12V Input Voltage
QV  PDF Quick-PWM Step-Down Controllers with Inductor Saturation Protection and Dynamic Output Voltages
MAX1992, MAX1992ETG, MAX1993

Quick-PWM Step-Down Controllers with Inductor Saturation Protection and Dynamic Output Voltages
QV  PDF Dual-Phase, Parallelable, Average Current-Mode Controllers
MAX5038, MAX5041
QV  PDF Triple 128-Position Nonvolatile Digital Potentiometer
DS3903

LOWEST COST NONVOLATILE TRIPLE
POTENTIOMETER IDEAL FOR AUTOMATING
POWER-SUPPLY CALIBRATION
Eliminates Manual Factory Calibration Costs
QV  PDF VRM 9.0, Dual-Phase, Parallelable, Average Current-Mode Controller
MAX5037
QV  PDF Smallest 1A, 1.4MHz Step-Down Regulators
MAX1973, MAX1974
QV  PDF Ultra-High-Efficiency, Dual Step-Down Controller for Notebook Computers
MAX1715

Low-Cost, Ultra-Fast, 1%-Accurate Controllers Power Next-Generation Notebook CPU Core and I/O Supplies
QV  PDF High-Speed Step-Down Controller for Notebook Computers
MAX1714, MAX1714A, MAX1714B

Low-Cost, Ultra-Fast, 1%-Accurate Controllers Power Next-Generation Notebook CPU Core and I/O
QV  PDF 2A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches
MAX1644

Industry's Smallest 2A DC-DC with Synchronous Rectifier
QV  PDF 3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches
MAX1623

Industry's Smallest 3A DC-DC with Synchronous Rectifier
QV  PDF Miniature, Low-Voltage, Precision Step-Down Controller
MAX1637

Low-Voltage, Precision Step-Down Controller for Portable CPU Power
QV  PDF 100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter
MAX887, MAX887H

Internal Power MOSFET and Current-Sense Reduces Component Count and Saves Space
QV  PDF Low-Cost, Low-Dropout, Dual Linear Regulator
MAX8862, MAX8862L, MAX8862R, MAX8862T

Dual High and Low-Power Linear Regulator Fits in Single Package to Save Space
QV  PDF 5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 200mA Linear Regulator with Standby Mode
MAX882, MAX883, MAX884

250mA LDOs Consume Just 11µA at Any Load and in Dropout
QV  PDF Low-Dropout, 120mA Linear Regulators
MAX8863R, MAX8863S, MAX8863T, MAX8864R, MAX8864S, MAX8864T

SOT23 Low-Noise, Low-Dropout Regulator
QV  PDF 5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear Regulators
MAX603, MAX604

Industry's Smallest 500mA LDO in SO-8 Footprint Handles Up to 1.8W Power Dissipation



Key Specifications:   Digital Potentiometers
Part Number Taper POTs Per Pkg. Control Interface Wiper Memory Number of Steps End-to-End Resistance (kΩ) Res. Tol. (%) Temp. Coeff. (typ)(ppm/°C) Wiper Resistance (typ) (Ω) Max. Idle State Supply Current @5V (µA) Applications Features Supply Voltage (V) Package Smallest Available Package (max w/pins) (mm2)
DS3903  Linear 3 2-Wire Addressable Non-Volatile 128 10+10+90 20 300 250 250
•Fiber Communications
•Power Supply Cal.
•EEPROM Wiper Memory
 2.7 to 5.5 TSSOP/20 45
See All Digital Potentiometers (121)

Key Specifications:   I/O Port Expanders
Part Number Features Interface Inputs/Outputs Reset Input Over-Voltage Protection Drive Current (mA) Supply Voltage (min) (V) Supply Voltage (max) (V) Package Smallest Available Package (max w/pins) (mm2)
MAX7310 
•56 Slave IDs
 Serial 2-Wire 400kbit 8 Yes 5.5V 20 2.3 5.5 QSOP/16
THIN QFN/16
TSSOP/16 		17
See All I/O Port Expanders (26)

Key Specifications:   Isolated Power Supplies
Part Number Application (Nominal Input Voltage) VIN (min) (V) VIN (max) (V) Topology Features Control Loop Feedback Type Frequency (kHz) Max. Duty Cycle (%) Start-Up Current (max) (mA) Operating Current, ICC (max) (mA) Gate Drive Current (A) Current Sense Threshold (mV) EV-Kit Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX15000 
•Networking (48V)
•Power Over Ethernet (32-58V)
•Universal Off-line (90-240VAC)
  -   -  Flyback
Single-Ended Forward
•Adjustable Frequency
•High Voltage Start-Up Circuit
•Internal Error Amplifier
•Thermal Shutdown
•UVLO
 Current Mode Primary Side 625 50
75 		0.09 2 1 1,000 No uMAX/10 15 -40 to +85
MAX15001 
•Base Station (24V)
•Industrial (24V)
 9.5 24 Flyback
Single-Ended Forward
•Adjustable Frequency
•High Voltage Start-Up Circuit
•Internal Error Amplifier
•Thermal Shutdown
•UVLO
 Current Mode Primary Side 625 50
75 		0.09 2 1 1,000 No uMAX/10 15 -40 to +85
MAX5051 
•Base Station (24V)
•Industrial (24V)
•Networking (48V)
•Power Over Ethernet (32-58V)
•Telecom (36-72V)
 11 76 Flyback
Single-Ended Forward
Two-Switch Forward
•Adjustable Frequency
•High Voltage Start-Up Circuit
•Internal Error Amplifier
•Synchronizable Freqeuncy
•Synchronous Rectifier Driver
•Thermal Shutdown
•UVLO
 Voltage Mode Linear
Opto 		500 48  -  8 5 154 Yes TSSOP/28 64 -40 to +125
MAX5052 
•Networking (48V)
•Power Over Ethernet (32-58V)
•Telecom (36-72V)
•Universal Off-line (90-240VAC)
 21.6 375 Flyback
Single-Ended Forward
•High Voltage Start-Up Circuit
•Internal Error Amplifier
•Thermal Shutdown
•UVLO
 Current Mode Linear
Opto 		262 50
75 		0.045 1.4 1 291 Yes uMAX/8 16 -40 to +85
MAX5053 
•Base Station (24V)
•Industrial (24V)
 10.8 24 Flyback
Single-Ended Forward
•High Voltage Start-Up Circuit
•Internal Error Amplifier
•Thermal Shutdown
•UVLO
 Current Mode Linear
Opto 		262 50
75 		0.045 1.4 1 291 No uMAX/8 16 -40 to +85
See All Isolated Power Supplies (29)

Key Specifications:   Linear Regulators
Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Preset VOUT (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output POK/ Reset Output POK/ Reset Output Type Nominal POK/Reset Threshold (V) Watchdog Reverse Battery Protection Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX603  1 2.7 11.5  -  1.3 11.5 0.32 500 50 No No  -   -  No No CDIP/8
DICE SALES/0
PDIP/8
SOIC/8 		31 0 to +70
MAX8863  1 2.5 5.5 2.8
2.84
3.15 		1.25 5.5 0.13 120 170 No No  -   -  No Yes SOT-23/5 9 -40 to +85
MAX8864  1 2.5 5.5 2.8
2.84
3.15 		1.25 5.5 0.13 120 170 No No  -   -  No Yes SOT-23/5 9 -40 to +85
MAX882  1 2.7 11.5 3.3 1.25 11 0.32 200 15 Yes No  -   -  No No DICE SALES/0
PDIP/8
SOIC/8 		31 -40 to +85
0 to +70
MAX883  1 2.7 11.5  -  1.25 11 0.22 200 15 Yes No  -   -  No No DICE SALES/0
PDIP/8
SOIC/8 		31 -40 to +85
0 to +70
MAX884  1 2.7 11.5 3.3 1.25 11 0.32 200 15 Yes No  -   -  No No DICE SALES/0
PDIP/8
SOIC/8 		31 -40 to +85
0 to +70
MAX8862  2 2.5 11.5 2.85
3.18
4.9 		2 11 0.2 250 330 No POK Open Drain Active Low Vout-4% No Yes SOIC/16 62 -40 to +85
MAX604  1 2.7 11.5 3.3 1.3 11.5 0.6 500 35 No No  -   -  No No CDIP/8
DICE SALES/0
PDIP/8
SOIC/8 		31 -40 to +85
0 to +70
See All Linear Regulators (138)

Key Specifications:   Switch-Mode DC-DC Power Supplies
Part Number Topology VIN (min) (V) VIN (max) (V) Number of DC-DC Outputs Preset VOUT (V) Digital/VID Programmed Output Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) IOUT (A) Operating Current, ICC (max) (mA) Fixed Freq/PWM Operation Operating Freq. (kHz) Internal Power Switch(es) Synchronous Rectifier Industry Qualified Package Smallest Available Package (max w/pins) (mm2)
MAX8655  Step-Down 4.5 25 1  -  No 0.7 5.5 25 3 Yes 1000 Yes Yes  -  THIN QFN/56 66
MAX8654  Step-Down 4.5 14 1  -  No 0.6 12 8 3 Yes 1200 Yes Yes  -  THIN QFN/36 37
MAX8643  Step-Down 2.35 3.6 1  -  Yes  -   -  3 6.5 Yes 2000 Yes Yes  -  THIN QFN/24 17
MAX5088  Step-Down 4.5 23 1  -  No 0.6  -  2 2.5 Yes  -  Yes No Automotive - General THIN QFN/16 26
MAX5089  Step-Down 4.5 23 1  -  No 0.6  -  2 2.5 Yes  -  Yes No Automotive - General THIN QFN/16 26
MAX5066  Step-Down 4.75 28 1  -  No 0.61 5.5 25 20 Yes  -  No Yes Automotive - General TSSOP/28 64
MAX5080  Step-Down 4.5 40 1  -  No 1.23 32 1 2.5 Yes 250 Yes No Automotive - General THIN QFN/16 26
MAX5081  Step-Down 7.5 40 1  -  No 1.23 32 1 2.3 Yes 250 Yes No Automotive - General THIN QFN/16 26
MAX8576  Step-Down 3 28 1  -  No 0.6 25 15 3 Yes  -  No Yes  -  uMAX/10 15
MAX8577  Step-Down 3 28 1  -  No 0.6 25 15 3 Yes  -  No Yes  -  uMAX/10 15
MAX8578  Step-Down 3 28 1  -  No 0.6 25 15 3 Yes  -  No Yes  -  uMAX/10 15
MAX8579  Step-Down 3 28 1  -  No 0.6 25 15 3 Yes  -  No Yes  -  uMAX/10 15
MAX8543  Step-Down 3 13.2 1  -  No 0.8 11 25 3 Yes  -  No Yes  -  QSOP/16 31
MAX8544  Step-Down 3 13.2 1  -  No 0.8 11 25 3 Yes  -  No Yes  -  QSOP/20 54
MAX8537  Step-Down 4.5 23 2  -  No 0.8  -  30 7 Yes  -  No Yes  -  QSOP/28 62
MAX8538  Step-Down 4.5 23 2  -  No 0.8  -  30 7 Yes  -  No Yes  -  QSOP/28 62
MAX8539  Step-Down 4.5 23 2  -  No 0.8  -  30 7 Yes  -  No Yes  -  QSOP/28 62
MAX1858A  Step-Down 4.5 23 2  -  No 0.8 18 10 6 Yes 100
600 		No Yes  -  QSOP/24 54
MAX1875A  Step-Down 4.5 23 2  -  No 0.8 18 10 6 Yes 100
600 		No Yes  -  QSOP/24 54
MAX1876A  Step-Down 4.5 23 2  -  No 0.8 18 10 6 Yes 100
600 		No Yes  -  QSOP/24 54
MAX5033  Step-Down 7.5 76 1 12
3.3 		No 1.25 13.2 0.5 0.5 Yes 125 Yes No Automotive - General PDIP/8
SOIC/8 		31
MAX8505  Step-Down 2.6 5.5 1  -  No 0.8 4.5 3 10 Yes 1000
500 		Yes Yes  -  QSOP/16 31
MAX8553  Step-Down 4.5 28 1  -  No 0 3.6 25 1.2 Yes 200
300
400
550 		No Yes  -  QSOP/16 31
MAX8554  Step-Down 4.5 28 1  -  No 0.6 3.5 25 1.2 Yes 200
300
400
550 		No Yes  -  QSOP/16 31
MAX1945  Step-Down 2.6 5.5 1 1.8
2.5 		No 0.8 4.5 6 20 Yes 1000
500 		Yes Yes  -  TSSOP/28 64
MAX1951  Step-Down 2.6 5.5 1  -  No 0.8 5 2 10 Yes 1000 Yes Yes  -  SOIC/8 31
MAX1952  Step-Down 2.6 5.5 1 1.8 No 1.8 1.8 2 10 Yes 1000 Yes Yes  -  SOIC/8 31
MAX8545  Step-Down 2.7 28 1  -  No 0.8 23 15 1.2 Yes 300 No Yes  -  uMAX/10 15
MAX8546  Step-Down 2.7 28 1  -  No 0.8 23 15 1.2 Yes 300 No Yes  -  uMAX/10 15
MAX8548  Step-Down 2.7 28 1  -  No 0.8 23 15 1.2 Yes 100 No Yes  -  uMAX/10 15
MAX5037  Step-Down 4.75 28 1  -  Yes 1.1 1.85 60 6 Yes 250
500 		No Yes  -  MQFP/44
THIN QFN/44 		50
MAX5038  Step-Down 4.75 28 1 1.2
1.5
1.8
2.5
3.3 		No  -   -  60 10 Yes 250
500 		No Yes  -  SSOP/28 82
MAX5041  Step-Down 4.75 28 1  -  No 1 3.3 60 10 Yes 250
500 		No Yes  -  SSOP/28 82
MAX1973  Step-Down 2.6 5.5 1 1.8
2.5 		No 1.25 5 0.95 7.5 Yes 1400 Yes Yes  -  uMAX/10 15
MAX1974  Step-Down 2.6 5.5 1 1.5 No 0.75 5 0.95 7.5 Yes 1400 Yes Yes  -  uMAX/10 15
MAX1715  Step-Down 2 28 2 1.8
2.5
3.3 		No 1 5.5 8 0.07 Yes 540 No Yes  -  QSOP/28 62
MAX1536  Step-Down 3 5.5 1  -  No 0.7 5.5 3.6 0.75 Yes 1400 Yes Yes  -  THIN QFN/28
THIN QFN/32 		26
MAX1623  Step-Down 4.5 5.5 1 2.5
3.3 		No 1.1 3.8 3 0.525 Yes 350 Yes Yes  -  SSOP/20 58
MAX1714A  Step-Down 2 28 1 2.5
3.3 		No 1 5.5 8 0.04 Yes 600 No Yes  -  QSOP/16
QSOP/20 		31
MAX1714B  Step-Down 2 28 1 2.5
3.3 		No 1 5.5 8 0.04 Yes 600 No Yes  -  QSOP/16
QSOP/20 		31
MAX1644  Step-Down 3 5.5 1 2.5
3.3 		No 1.1 5.5 2 0.36 Yes 350 Yes Yes  -  SSOP/16 50
MAX1637  Step-Down 3.15 5.5 1  -  No 1.1 5.5 7 0.5 Yes 350 No Yes  -  QSOP/16 31
MAX887  Step-Down 3.5 11 1  -  No 1.25 10 0.6 0.5 Yes 440 Yes No  -  SOIC/8 31
MAX1534  Step-Down 4.5 24 1 1.8
3.3 		No 1 5.5 0.3 0.03 No 200 Yes No  -  THIN QFN/16 17
MAX1992  Step-Down 2 28 1 1.8
2.5 		No 0.7 5.5 4 0.8 Yes 300 No Yes  -  THIN QFN/24 17
MAX1993  Step-Down 2 28 1 1.8
2.5 		No 0.7 5.5 4 0.8 Yes 300 No Yes  -  THIN QFN/24 17
MAX5060  Step-Down 4.75 28 1  -  No 0.6 5.5 30 5.5 Yes  -  No Yes Automotive - General THIN QFN/28
THIN QFN/32 		26
MAX5061  Step-Down 4.75 28 1  -  No 0.6 5.5 30 5.5 Yes  -  No Yes Automotive - General TSSOP/16 33
MAX5073  Step-Down
Step-Up 		5.5 23 2  -  No 0.8 28 2 4 Yes  -  Yes No Automotive - AECQ100
Automotive - General 		THIN QFN/28
THIN QFN/32 		26
MAX8597  Step-Down 4.5 28 1  -   -  0.6 28 20 5 Yes 1400 No Yes  -  THIN QFN/20 17
MAX8598  Step-Down 4.5 28 1  -   -  0.6 28 20 5 Yes 1400 No Yes  -  THIN QFN/16 17
MAX8599  Step-Down 4.5 28 1  -   -  0.6 28 20 5 Yes 1400 No Yes  -  THIN QFN/16 17
See All Switch-Mode DC-DC Power Supplies (418)


         


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