Maxim > Solutions > Computers: Motherboards
DDR Memory Power Supplies
The MAX8632 Fully Integrated DDR Power Supply provides a complete solution for DDR1, DDR2, and DDR3 power requirements.
The Quick-PWM™ control topology used on the VDDQ output provides fast transient response, reducing bulk capacitance requirements. VTT requirements are supported by a 3A sink/source linear device with integrated power switches, reducing total area and cost.
The MAX8632 allows flexible sequencing and standby power management using the SHDN-bar and STBY-bar inputs, which support all DDR operating states.
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Title/Parts
Key Advantages
QV PDF
Evaluation Kit for the MAX6604 MAX6604EVKIT
QV PDF
Dual, 5A, 1.5MHz, Step-Down Regulator with Integrated High-Side Switches MAX8653 First Step-Down DC-DC Converter with Integrated MOSFETs, REFIN for Tracking and DDR Termination, Enable and POK for Sequencing
QV PDF
Precision Temperature Monitor for DDR Memory Modules MAX6604 Allows high-accuracy (±1°C) temperature readings of memory modules.
QV PDF
Integrated DDR Power-Supply Solution for Desktops, Notebooks, and Graphic Cards MAX8632
QV PDF
Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards MAX8550, MAX8551
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
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 (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)
Package/Pins
Smallest Available Pckg. (mm2 )
min
max
min
max
≥
≤
max w/pins
MAX8550
2
28
0.7
5.5
20
20
1
600
26
MAX8551
2
28
0.7
5.5
1.5
1.5
1
600
26
MAX8537
4.5
23
0.8
3.6
-
30
30
Resistor
2
1400
62
MAX8538
4.5
23
0.8
3.6
-
30
30
Resistor
2
1400
62
MAX8539
4.5
23
0.8
3.6
-
30
30
Resistor
2
1400
62
MAX8553
4.5
28
0
3.6
-
25
25
1
550
31
MAX8554
4.5
28
0.6
3.5
-
25
25
Resistor
1
550
31
MAX1953
3
5.5
0.8
4.5
-
4
4
Resistor
1
1000
15
MAX1954
3
13.2
0.8
4.5
-
25
25
Resistor
1
300
15
MAX1957
3
5.5
0.4
4.5
-
3
3
Resistor
1
300
15
MAX1917
4.5
22
0.4
5
-
25
25
1
550
31
See All Step-Down Switching Regulators (264)
Key Specifications: Temperature Sensors
Part Number
Sensor Type
Alarm Output
Interface
Accuracy (±°C)
Parasite Pwr.
Temp. Thresh.
Temp. Resolution (bits)
Oper. Temp. (°C)
Smallest Available Pckg. (mm2 )
max w/pins
MAX6604
Local
Alert
2-Wire/I2 C/SMBus
1
No
Programmable
11
-40 to +125
6
See All Temperature Sensors (99)