Texas Instruments PT79SR105H DC DC Switching Regulators
1.5A DC-DC switching regulator with a -5V output voltage.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
PT79SR105H
Detailed Description
1.5A DC-DC switching regulator with a -5V output voltage. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with input voltages from -9V to -30V and offers up to 85% efficiency. Packaged in a horizontal mount module with dimensions of 0.94" x 0.9" x 0.31" and a weight of 7g. This non-isolated regulator has a maximum switching frequency of 1050kHz and a maximum power dissipation of 7.5W.
Package
Module
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PT79SR105H Datasheet
Quick Jump:
Technical Specifications
Texas Instruments PT79SR105H DC DC Switching Regulators technical specifications.
General
Series
PT79SR100
RoHS
Yes
Packaging
Tray
Operating Temperature
-40°C ~ 85°C
Package
Module
Current Output 1
1.5A
Depth
22.86mm
Efficiency
85%
Features
OTP, SCP
Height
0.31inch
Alternate Parts Comparison (PT79SR105H vs PT5401A vs PT6302N vs PT5101C)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Series | PT79SR100 | Excalibur™ PT5400 | PT6300 | PT5100 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| RoHS | Yes | Yes | Yes | Yes |
| Current Output 1 | 1.5A | 6A | 3A | 1A |
| Depth | 22.86mm | 22.86mm | 9.4mm | 25.9mm |
| Efficiency | 85% | 93% | 89% | 90% |
| Height | 0.31inch | 0.31inch | 16.75mm | 0.38inch |
| Lead Free | Lead Free | Lead Free | Lead Free | Lead Free |
| Length | 0.94inch | 1.11inch | 43.15mm | 1inch |
| Max Input Voltage | -30V | 5.5V | 38V | 38V |
| Max Output Current | -1.5A | 6A | 3A | 1A |
| Max Power Dissipation | 7.5W | 19.8W | 15W | 5W |
| Action |
Texas Instruments PT79SR105H DC DC Switching Regulators Overview
1.5A DC-DC switching regulator with a -5V output voltage. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with input voltages from -9V to -30V and offers up to 85% efficiency. Packaged in a horizontal mount module with dimensions of 0.94" x 0.9" x 0.31" and a weight of 7g.
This non-isolated regulator has a maximum switching frequency of 1050kHz and a maximum power dissipation of 7.5W.
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