Step-Down Controllers



DATA SHEETS
Part Number Description Key Advantages
MAX15026CEVKIT Evaluation Kit for the MAX15026C

MAX8855EVKIT Evaluation Kit for the MAX8855

MAX15049EVKIT Evaluation Kit for the MAX15049

MAX15048, MAX15049 Triple-Output Buck Controllers with Tracking/Sequencing

Low-Cost Triple Buck Controllers with Sequencing and Tracking in Small Form Factor (5mm x 5mm)
MAX15034BEVKIT Evaluation Kit for the MAX15034B and MAX5066

MAX8664EVKIT Evaluation Kit for the MAX8664A and MAX8664B

MAX15039EVKIT Evaluation Kit for the MAX15039

MAX15046BEVKIT Evaluation Kit for the MAX15046B

MAX15046, MAX15046A, MAX15046B 40V, High-Performance, Synchronous Buck Controller

40V Industrial Controller Operates at 1MHz
MAX15038EVKIT Evaluation Kit for the MAX15038 and MAX15039

MAX15023EVKIT Evaluation Kit for the MAX15023

MAX15026BEVKIT Evaluation Kit for the MAX15026B

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

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

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

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

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

Smallest, Most Efficient, 4A Step-Down Regulator Switches Frequencies Up to 2MHz
MAX15002 Dual-Output Buck Controller with Tracking/Sequencing

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

Lowest Cost, Dual-Output Regulator for a Wide Range of Applications
MAX8643A 3A, 2MHz Step-Down Regulator with Integrated Switches

Smallest, Most-Efficient 3A Step-Down Regulator Up to a 2.4MHz Frequency
MAX8566EVKIT Evaluation Kit for the MAX8566

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

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

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

Complete Control/Monitoring of Any Power Supply with PMBus Interface
MAX8855, MAX8855A Dual, 5A, 2MHz Step-Down Regulators

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

DS4305, DS4305K Electronically Programmable Voltage Reference

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

DS4303, DS4303K Electronically Programmable Voltage Reference

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

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

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

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

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

MAX8553, MAX8554 4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications

4.5V to 28V Input, Synchronous PWM Buck Controllers for DDR Termination and Point-of-Load Applications Offer Fastest Transient Response
MAX5037A VRM 9.0/VRM 9.1, Dual-Phase, Parallelable, Average-Current-Mode Controller

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

MAX8643 3A, 2MHz Step-Down Regulator with Integrated Switches

Smallest, Most Efficient 3A Step-Down Regulator Up to a 2.4MHz Frequency
MAX8545, MAX8546, MAX8548 Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit

2.7V to 28V Input, 15A, Step-Down, DC-DC Controllers for Desktop and Graphic Card Supplies have Foldback Current Protection
MAX5038, MAX5041 Dual-Phase, Parallelable, Average Current-Mode Controllers

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

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

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

Reduce Capacitors and Cost of DDR Supplies



Key Specifications:

Step-Down Switching Regulators
Part Number VIN
(V)
VIN
(V)
VOUT
(V)
VOUT
(V)
Preset VOUT
(V)
Max. IOUT
(A)
Max. IOUT
(A)
Output Adjust. Method DC-DC Outputs Oper. Freq.
(kHz)
Design Tools Package/Pins Smallest Available Pckg.
(mm2)
min max min max max w/pins
MAX15048  4.7 23 0.6 20 - 15 15 Resistor 3 1200 -
TQFN/32
26
MAX15049  4.7 23 0.6 20 - 15 15 Resistor 3 1200 -
TQFN/32
26
MAX15046  4.5 40 0.6 36 - 25 25 Resistor 1 1000 EE-Sim
QSOP-EP/16
QSOP/16
30.9
MAX15034  4.75 28 0.61 5.5 - 50 50 Resistor 2 1000 -
TSSOP-EP/28
TSSOP/28
63.7
MAX15023  4.5 28 0.6 28 - 15 15 Resistor 2 1000 EE-Sim
TQFN/24
16.8
MAX15026  4.5 28 0.6 28 - 15 15 Resistor 1 2000 -
TDFN-EP/14
9.6
MAX15038  2.9 5.5 0.6 4.5 - 4 4
Digital/VID
Dyn. REF In
Resistor
1 2000 EE-Sim
TQFN/24
16.8
MAX15039  2.9 5.5 0.6 4.5 - 6 4
Digital/VID
Dyn. REF In
Resistor
1 2000 EE-Sim
TQFN/24
16.8
MAX15002  4.5 23 0.6 18 - 20 20 Resistor 2 2200 -
TQFN/40
37.2
MAX8833  2.35 3.6 0.6 3.3 - 3 3 Resistor 2 2000 -
TQFN/32
26
MAX8855  2.35 3.6 0.6 3.3 - 5 5 Resistor 2 2000 -
TQFN/32
26
MAX8664  4.5 28 0.6 25 - 25 25 Resistor 2 1000 EE-Sim
QSOP/20
54.2
MAX8643A  2.35 3.6 0.6 2.5 - 3 3
Digital/VID
Dyn. REF In
Preset
Resistor
1 2000 EE-Sim
TQFN/24
16.8
MAX8646  2.35 3.6 0.6 2.5 - 6 6
Digital/VID
Dyn. REF In
Preset
Resistor
1 2000 -
TQFN/24
16.8
MAX5066  4.75 28 0.61 5.5 - 25 25 Resistor 1 1000 EE-Sim
TSSOP-EP/28
63.7
MAX8566  2.3 3.6 0.6 3.1 - 10 10 Resistor 1 2400 EE-Sim
TQFN/32
26
MAX5060  4.75 28 0.6 5.5 - 30 30 Resistor 1 1500 -
TQFN/28
26
MAX5061  4.75 28 0.6 5.5 - 30 30 Resistor 1 1500 -
TSSOP-EP/16
33.2
MAX8543  3 13.2 0.8 11 - 25 25 Resistor 1 1000 -
QSOP/16
30.9
MAX8544  3 13.2 0.8 11 - 25 25 Resistor 1 1000 -
QSOP/20
54.2
MAX8537  4.5 23 0.8 3.6 - 30 30 Resistor 2 1400 -
QSOP/28
61.9
MAX8538  4.5 23 0.8 3.6 - 30 30 Resistor 2 1400 -
QSOP/28
61.9
MAX8539  4.5 23 0.8 3.6 - 30 30 Resistor 2 1400 -
QSOP/28
61.9
MAX5037A  4.75 28 1.1 1.85 - 60 60 Digital/VID 1 500 -
MQFP/44
TQFN/44
50.4
MAX5038A  4.75 28 1.2 3.3
1.2
1.5
1.8
2.5
3.3
60 60 Preset 1 500 -
SSOP/28
81.6
MAX5041A  4.75 28 1 3.3 - 60 60 Resistor 1 500 -
SSOP/28
81.6
MAX8553  4.5 28 0 3.6 - 25 25
Dyn. REF In
Resistor
1 550 -
QSOP/16
30.9
MAX8554  4.5 28 0.6 3.5 - 25 25 Resistor 1 550 -
QSOP/16
30.9
MAX8545  2.7 28 0.8 23 - 15 15 Resistor 1 300 -
µMAX/10
15.4
MAX8546  2.7 28 0.8 23 - 15 15 Resistor 1 300 -
µMAX/10
15.4
MAX8548  2.7 28 0.8 23 - 15 15 Resistor 1 100 -
µMAX/10
15.4
MAX5037  4.75 28 1.1 1.85 - 60 60 Digital/VID 1 500 -
MQFP/44
TQFN/44
50.4
MAX5038  4.75 28 1.2 3.3
1.2
1.5
1.8
2.5
3.3
60 60 Preset 1 500 -
SSOP/28
81.6
MAX5041  4.75 28 1 3.3 - 60 60 Resistor 1 500 -
SSOP/28
81.6
MAX1953  3 5.5 0.8 4.5 - 4 4 Resistor 1 1000 -
µMAX/10
15.4
MAX1954  3 13.2 0.8 4.5 - 25 25 Resistor 1 300 -
µMAX/10
15.4
MAX1957  3 5.5 0.4 4.5 - 3 3 Resistor 1 300 -
µMAX/10
15.4
MAX1917  4.5 22 0.4 5 - 25 25
Dyn. REF In
Resistor
1 550 -
QSOP/16
30.9
See All Step-Down Switching Regulators (284)

Voltage References
Part Number VOUT
(V)
Temp. Coeff.
(ppm/°C)
Initial Accuracy
(% max)
Calibration Method ISUPPLY
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Noise 0.1Hz to 10Hz
(µVpp)
Oper. Temp.
(°C)
Package/Pins Smallest Available Pckg.
(mm2)
max @ +25°C max min max typ max w/pins
DS4305  Programmable (within 300mV of Rails) 24 0.03 E2CRef. 2000 4 5.5 160 -40 to +125
SOT/3
SOT/5
8
DS4303  30 1600 2.4 3.6 200 -40 to +85
SOT/5
9
See All Voltage References (168)





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