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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)) | Operating Temperature | Color | Gender | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WR-PHD Jumper, 1, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Jumper | Pins1 | – | – | Length2.44 mm | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +125 °C | ColorBlack | GenderJumper | PackagingBag | |||
 | WR-PHD Pin Header - Single, 2, Straight | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | TypeStraight | MountTHT | Length5.08 mm | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag | |||
 | WR-PHD Pin Header - Single, 3, Straight | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | TypeStraight | MountTHT | Length7.62 mm | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | – | GenderPin Header | PackagingBag |