Texas Instruments PT78ST105V DC DC Switching Regulators
1.5A switching regulator with a 5V nominal output voltage and 7.5W maximum output power.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
PT78ST105V
Series
Base Model
Detailed Description
1.5A switching regulator with a 5V nominal output voltage and 7.5W maximum output power. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with a 9V to 38V DC input voltage range and a switching frequency up to 700kHz. Non-isolated, SIP package, 85% efficiency, and RoHS compliant.
Package
SIP
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PT78ST105V Datasheet
Quick Jump:
Technical Specifications
Texas Instruments PT78ST105V DC DC Switching Regulators technical specifications.
General
Series
PT78ST100
RoHS
Yes
Packaging
Tray
Operating Temperature
-40°C ~ 85°C
Package
SIP
Current Output 1
1.5A
Current Rating
1.5A
Depth
7.87mm
Efficiency
85%
Features
OTP, SCP
Alternate Parts Comparison (PT78ST105V vs PT78ST133S vs PT5401A vs PT5102A)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Series | PT78ST100 | PT78ST100 | Excalibur™ PT5400 | 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 | 1.5A | 6A | 1A |
| Depth | 7.87mm | 22.86mm | 22.86mm | 25.4mm |
| Efficiency | 85% | 80% | 93% | 94% |
| Features | OTP, SCP | OTP, SCP | UVLO | OCP, OTP |
| Height | 0.94inch | 0.34inch | 0.31inch | 0.38inch |
| Lead Free | Lead Free | Lead Free | Lead Free | Lead Free |
| Length | 0.9inch | 0.94inch | 1.11inch | 1inch |
| Max Input Voltage | 38V | 26V | 5.5V | 38V |
| Max Output Current | 1.5A | 1.5A | 6A | 1A |
| Action |
Texas Instruments PT78ST105V DC DC Switching Regulators Overview
1.5A switching regulator with a 5V nominal output voltage and 7.5W maximum output power. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with a 9V to 38V DC input voltage range and a switching frequency up to 700kHz. Non-isolated, SIP package, 85% efficiency, and RoHS compliant.
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