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Texas Instruments LM5141 | Demoboard PMP20818
137W Holdup Converter for Storage Server Reference Design
Overview
| Topology | Buck Converter |
| Input voltage | 12-50 V |
| Output 1 | 50 V / 0.05 A |
| IC revision | A |
Description
PMP20818 is a holdup reference design that uses the LM3481 non-synchronous boost and LM5141-Q1 synchronous buck controllers. When the 12V input supply is available, the buck converter is disabled, and the boost converter charges a capacitive holdup bank. In the event of a power outage, the boost converter is disabled, and the buck converter is enabled to holdup the 12V input rail for 15ms with a load of 12.5A.
Features
- Boost followed by synchronous buck
- Peak current-mode control
- Buck turns on automatically at input power loss
- No user control required
- Low dropout buck maximizes holdup time
Typical applications
- Embedded PC
- Industrial Programmable Logic Controller / Industrial PC
- Medical Equipment
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | Pins | Type | Mount | L (mm) | IR (A) | Working Voltage (V (AC)) | Color | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 60900213421 | SPEC | 3 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Jumper | 1 | – | – | 2.44 | 3 | 250 | Black | Jumper | Bag | |
 | 61300211121 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | 2 | Straight | THT | 5.08 | 3 | 250 | – | Pin Header | Bag | |
 | 61300311121 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-PHD Pin Header - Single | 3 | Straight | THT | 7.62 | 3 | 250 | – | Pin Header | Bag |
| Order Code | Datasheet | |
|---|---|---|
| 60900213421 | SPEC |
| 61300211121 | SPEC |
| 61300311121 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | Pins | Type | Mount | L (mm) | IR (A) | Working Voltage (V (AC)) | Color | Gender | Packaging | Samples |
|---|
