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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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| Display |
Title/Parts |
Key Advantages |
| QV PDF |
Evaluation Kit for the MAX6604 MAX6604EVKIT

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| 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

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| QV PDF |
Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards MAX8550, MAX8551

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

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| 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

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| 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 |
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20 |
20 |
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1 |
600 |
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26 |
| MAX8551 |
2 |
28 |
0.7 |
5.5 |
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1.5 |
1.5 |
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1 |
600 |
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26 |
| MAX8537 |
4.5 |
23 |
0.8 |
3.6 |
- |
30 |
30 |
Resistor |
2 |
1400 |
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61.9 |
| MAX8538 |
4.5 |
23 |
0.8 |
3.6 |
- |
30 |
30 |
Resistor |
2 |
1400 |
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61.9 |
| MAX8539 |
4.5 |
23 |
0.8 |
3.6 |
- |
30 |
30 |
Resistor |
2 |
1400 |
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61.9 |
| MAX8553 |
4.5 |
28 |
0 |
3.6 |
- |
25 |
25 |
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1 |
550 |
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30.9 |
| MAX8554 |
4.5 |
28 |
0.6 |
3.5 |
- |
25 |
25 |
Resistor |
1 |
550 |
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30.9 |
| MAX1953 |
3 |
5.5 |
0.8 |
4.5 |
- |
4 |
4 |
Resistor |
1 |
1000 |
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15.4 |
| MAX1954 |
3 |
13.2 |
0.8 |
4.5 |
- |
25 |
25 |
Resistor |
1 |
300 |
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15.4 |
| MAX1957 |
3 |
5.5 |
0.4 |
4.5 |
- |
3 |
3 |
Resistor |
1 |
300 |
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15.4 |
| MAX1917 |
4.5 |
22 |
0.4 |
5 |
- |
25 |
25 |
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1 |
550 |
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30.9 |
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See All Step-Down Switching Regulators (264)
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| 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/I2C/SMBus |
1 |
No |
Programmable |
11 |
-40 to +125 |
6.3 |
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See All Temperature Sensors (99)
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