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Maxim > Solutions > Power Solutions for Nonportable Applications

Step-Down Controllers

DATA SHEETS
Display Title / Parts Key Advantages
QV  PDF Evaluation Kit for the MAX15038 and MAX15039
MAX15038EVKIT

QV  PDF Evaluation Kit for the MAX15023
MAX15023EVKIT

QV  PDF Evaluation Kit for the MAX15026B
MAX15026BEVKIT

QV  PDF Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller
MAX15023

Low-Cost, Dual DC-DC Controller Operates from 4.5V to 28V Suitable for Multiple Applications
QV  PDF Low-Cost, Small, 4.5V to 28V Wide Operating Range, DC-DC Synchronous Buck Controller
MAX15026

Low-Cost, Versatile DC-DC Controller Operates from 4.5V to 28V Suitable for Multiple Applications
QV  PDF Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications
MAX15034

Dual Converter Configurable for 25A Per Output or a Single 50A Output
QV  PDF 6A, 2MHz Step-Down Regulator with Integrated Switches
MAX15039

Smallest, Most Efficient, 6A Step-Down Regulator Switches Frequencies Up to 2MHz
QV  PDF 4A, 2MHz Step-Down Regulator with Integrated Switches
MAX15038

Smallest, Most Efficient, 4A Step-Down Regulator Switches Frequencies Up to 2MHz
QV  PDF Evaluation Kit for the MAX15003
MAX15003EVKIT

QV  PDF Dual-Output Buck Controller with Tracking/Sequencing
MAX15002

Flexible, Dual Controller Delivers 15A Per Output with Sequencing and Tracking Control
QV  PDF Triple-Output Buck Controller with Tracking/Sequencing
MAX15003

Flexible, Triple Controller Delivers 15A per Output with Sequencing and Tracking Control
QV  PDF Low-Cost, Dual-Output, Step-Down Controller with Fast Transient Response
MAX8664

Lowest Cost, Dual-Output Regulator for a Wide Range of Applications
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 Evaluation Kit for the MAX8566
MAX8566EVKIT

QV  PDF Dual, 3A, 2MHz Step-Down Regulator
MAX8833

Smallest, Most Efficient, Dual 3A Regulator with Integrated Switches in 5mm × 5mm TQFN Package
QV    1- to 8-Phase, Master-Slave CPU Core Regulator with Integrated Power MOSFETs
MAX8657, MAX8658, MAX8659

25A/Phase VRM Regulator Chipset for VRD10/VRD11 and K8
Has Reference Input to Support Up to 200A Output
QV  PDF Digital Power-Supply Controller/Monitor with PMBus Interface
MAX8688

Complete Control/Monitoring of Any Power Supply with PMBus Interface
QV  PDF Dual, 5A, 2MHz Step-Down Regulator
MAX8855

Smallest, Most Efficient 5A Regulator with Integrated Switches in 5mm x 5mm TQFN Package
QV  PDF Configurable, Single-/Dual-Output, Synchronous Buck Controller for High-Current Applications
MAX5066

QV  PDF Electronically Programmable Voltage Reference
DS4305, DS4305K

Nonvolatile Sample and Infinite-Hold Adjustable Voltage Reference for Automated Factory Calibration
QV  PDF High-Efficiency, 10A, PWM Internal-Switch Step-Down Regulator
MAX8566

QV  PDF Electronically Programmable Voltage Reference
DS4303, DS4303K

Nonvolatile Sample and Infinite-Hold Adjustable Voltage Reference for Automated Factory Calibration
QV  PDF 0.6V to 5.5V Output, Parallelable, Average-Current-Mode DC-DC Controllers
MAX5060, MAX5061

QV  PDF 6A, 2MHz Step-Down Regulator with Integrated Switches
MAX8646

Smallest, Most Efficient 6A Step-Down Regulator and Up to 2.4MHz Frequency
QV  PDF Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8543, MAX8544

QV  PDF Low-Cost, Current-Mode PWM Buck Controller with Foldback Current Limit
MAX1954A

QV  PDF Dual-Synchronous Buck Controllers for Point-of-Load, Tracking, and DDR Memory Power Supplies
MAX8537, MAX8538, MAX8539

QV  PDF Dual-Phase, +0.6V to +3.3V Output Parallelable, Average-Current-Mode Controllers
MAX5065, MAX5067

Dual-Phase, +0.6V to +3.3V Output, Parallelable, Average-Current-Mode Controllers
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 VRM 9.0/VRM 9.1, Dual-Phase, Parallelable, Average-Current-Mode Controller
MAX5037A

QV  PDF Dual-Phase, Parallelable, Average-Current-Mode Controllers
MAX5038A, MAX5041A

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 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 Dual-Phase, Parallelable, Average Current-Mode Controllers
MAX5038, MAX5041

QV  PDF VRM 9.0, Dual-Phase, Parallelable, Average Current-Mode Controller
MAX5037

QV  PDF Low-Cost, High-Frequency, Current-Mode PWM Buck Controllers
MAX1953, MAX1954, MAX1957

QV  PDF Tracking, Sinking and Sourcing, Synchronous Buck Controller for DDR Memory and Termination Supplies
MAX1917

Reduce Capacitors and Cost of DDR Supplies



Key Specifications:   Step-Down Switching Regulators
Part Number VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) Preset VOUT (V) IOUT (A) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Design Tools Package Smallest Available Package (max w/pins) (mm2)
MAX15034  4.75 28 0.61 5.5  -  50 50 Resistor 17 2 1000  -  TSSOP-EP/28
TSSOP/28
64
MAX15023  4.5 28 0.6 28  -  15 15 Resistor 6 2 1000  -  TQFN/24 17
MAX15026  4.5 28 0.6 28  -  15 15 Resistor 2.75 1 2000  -  TDFN-EP/14 10
MAX15038  2.9 5.5 0.6 4.5  -  4 4 Digital/VID
Dyn. REF In
Resistor
8 1 2000  -  TQFN/24 17
MAX15039  2.9 5.5 0.6 4.5  -  6 4 Digital/VID
Dyn. REF In
Resistor
8 1 2000  -  TQFN/24 17
MAX15002  4.5 23 0.6 18  -  20 20 Resistor 6 2 2200  -  TQFN/40 37
MAX15003  4.5 23 0.6 19  -  15 15 Resistor 8 3 2200  -  TQFN/48 50
MAX8833  2.35 3.6 0.6 3.3  -  3 3 Resistor 3.5 2 2000  -  TQFN/32 26
MAX8855  2.35 3.6 0.6 3.3  -  5 5 Resistor 3.5 2 2000  -  TQFN/32 26
MAX8664  4.5 28 0.6 25  -  25 25 Resistor 1.8 2 1000  -  QSOP/20 54
MAX8643A  2.35 3.6 0.6 2.5  -  3 3 Digital/VID 6.5 1 2000  -  TQFN/24 17
MAX8646  2.35 3.6 0.6 2.5  -  6 6 Digital/VID 6.5 1 2000  -  TQFN/24 17
MAX5066  4.75 28 0.61 5.5  -  25 25 Resistor 20 1 1000  -  TSSOP-EP/28 64
MAX8566  2.3 3.6 0.6 3.1  -  10 10 Resistor 2.2 1 2400 EE-Sim TQFN/32 26
MAX5060  4.75 28 0.6 5.5  -  30 30 Resistor 5.5 1 1500  -  TQFN/28 26
MAX5061  4.75 28 0.6 5.5  -  30 30 Resistor 5.5 1 1500  -  TSSOP-EP/16 33
MAX8543  3 13.2 0.8 11  -  25 25 Resistor 3 1 1000  -  QSOP/16 31
MAX8544  3 13.2 0.8 11  -  25 25 Resistor 3 1 1000  -  QSOP/20 54
MAX8537  4.5 23 0.8 3.6  -  30 30 Resistor 7 2 1400  -  QSOP/28 62
MAX8538  4.5 23 0.8 3.6  -  30 30 Resistor 7 2 1400  -  QSOP/28 62
MAX8539  4.5 23 0.8 3.6  -  30 30 Resistor 7 2 1400  -  QSOP/28 62
MAX5067  4.75 28 0.6 3.3  -  60 60 Resistor 10 1 500  -  TQFN/44 50
MAX5037A  4.75 28 1.1 1.85  -  60 60 Digital/VID 6 1 500  -  MQFP/44
TQFN/44
50
MAX5038A  4.75 28 1.2 3.3 1.2
1.5
1.8
2.5
3.3
60 60 Preset 10 1 500  -  SSOP/28 82
MAX5041A  4.75 28 1 3.3  -  60 60 Resistor 10 1 500  -  SSOP/28 82
MAX5065  4.75 28 0.6 3.3  -  60 60 Resistor 10 1 500  -  SSOP/28 82
MAX8553  4.5 28 0 3.6  -  25 25 Dyn. REF In
Resistor
1.2 1 550  -  QSOP/16 31
MAX8554  4.5 28 0.6 3.5  -  25 25 Resistor 1.2 1 550  -  QSOP/16 31
MAX8545  2.7 28 0.8 23  -  15 15 Resistor 1.2 1 300  -  µMAX/10 15
MAX8546  2.7 28 0.8 23  -  15 15 Resistor 1.2 1 300  -  µMAX/10 15
MAX8548  2.7 28 0.8 23  -  15 15 Resistor 1.2 1 100  -  µMAX/10 15
MAX5037  4.75 28 1.1 1.85  -  60 60 Digital/VID 6 1 500  -  MQFP/44
TQFN/44
50
MAX5038  4.75 28 1.2 3.3 1.2
1.5
1.8
2.5
3.3
60 60 Preset 10 1 500  -  SSOP/28 82
MAX5041  4.75 28 1 3.3  -  60 60 Resistor 10 1 500  -  SSOP/28 82
MAX1953  3 5.5 0.8 4.5  -  4 4 Resistor 1 1 1000  -  µMAX/10 15
MAX1954  3 13.2 0.8 4.5  -  25 25 Resistor 1 1 300  -  µMAX/10 15
MAX1957  3 5.5 0.4 4.5  -  3 3 Resistor 1 1 300  -  µMAX/10 15
MAX1917  4.5 22 0.4 5  -  25 25 Dyn. REF In
Resistor
0.8 1 550  -  QSOP/16 31
See All Step-Down Switching Regulators (252)

Key Specifications:   Voltage References
Part Number Output Voltage (V) Tempco (max) (ppm/°C) Initial Accuracy (% max @ +25°C) Supply Current - Series Only (max) (µA) Supply Voltage - Series Only (min) (V) Supply Voltage - Series Only (max) (V) Noise 0.1Hz to 10Hz (µVp-p typ) Features Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
DS4305  Programmable 24 0.03 2,000 4 5.5 160
Series
SOT/3
SOT/5
8 -40 to +125
DS4303  Programmable 30 0.03 1,600 2.4 3.6 200
Series
SOT/5 9 -40 to +85
See All Voltage References (162)



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