Key facts
- Brand
- Texas Instruments
- Model
- TPS65140
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-07
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Texas Instruments TPS65140/TPS65145 Datasheet
The TPS65140 and TPS65145 are compact triple‑output LCD power‑supply ICs designed for thin‑film transistor (TFT) LCD displays. They generate a positive, negative, and auxiliary 3.3 V rail from a 2.7 V‑5.8 V input and include a system power‑good output.
Key features include a 1.6 MHz fixed switching frequency, independent adjustable outputs (up to 30 V / 20 mA positive and –12 V / 20 mA negative), internal soft‑start, power‑on sequencing, fault detection, and thermal shutdown. The devices are offered in TSSOP‑24 and QFN‑24 packages and are used in notebook and monitor LCD panels, portable DVD players, tablet PCs, car navigation systems, and industrial displays.
Texas Instruments TPS65140 specifications
| Input voltage range | 2.7 V to 5.8 V |
|---|---|
| Switching frequency | 1.6 MHz (fixed) |
| Positive output voltage | up to 30 V / 20 mA |
| Negative output voltage | down to –12 V / 20 mA |
| Package types | TSSOP‑24 and QFN‑24 |
| Typical switch current limit (TPS65140) | 2.3 A |
| Typical switch current limit (TPS65145) | 1.37 A |
All Texas Instruments TPS65140 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the input voltage range for the TPS65140/TPS65145?
The devices operate from 2.7 V to 5.8 V input.
What output voltages can the TPS65140/TPS65145 provide?
They provide a positive output up to 30 V / 20 mA, a negative output down to –12 V / 20 mA, and an auxiliary 3.3 V linear regulator.
What is the input voltage range for the TPS6514x series?
The series operates from 2.7 V to 5.8 V input voltage.
From: Texas Instruments TPS65140/ TPS65141/ TPS65145 Data Sheet
What is the maximum switch current for the TPS65145 device?
The TPS65145 has a typical switch‑current limit of 1.37 A.
From: Texas Instruments TPS65140/ TPS65141/ TPS65145 Data Sheet