Texas Instruments PT78ST133S DC DC Switching Regulators
3.3V DC-DC converter with 1.5A output current and 4.95W output power.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
PT78ST133S
Series
Base Model
Detailed Description
3.3V DC-DC converter with 1.5A output current and 4.95W output power. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with a non-isolated, single output, and accepts input voltages from 9V to 26V. This surface-mount device offers 80% efficiency and is RoHS compliant.
Package
SMD/SMT
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PT78ST133S Datasheet
Quick Jump:
Technical Specifications
Texas Instruments PT78ST133S DC DC Switching Regulators technical specifications.
General
Series
PT78ST100
RoHS
Yes
Packaging
Tray
Operating Temperature
-40°C ~ 85°C
Package
SMD/SMT
Current Output 1
1.5A
Depth
22.86mm
Efficiency
80%
Features
OTP, SCP
Height
0.34inch
Alternate Parts Comparison (PT78ST133S vs PT78ST105V vs PT5401C vs PT6101C)
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 | PT6100 |
| 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 | 22.86mm | 7.87mm | 22.86mm | 17.01mm |
| Efficiency | 80% | 85% | 93% | 89% |
| Height | 0.34inch | 0.94inch | 7.87mm | 9.4mm |
| Isolation | Non-Isolated | Non-Isolated | Non-Isolated | Non-Isolated |
| Lead Free | Lead Free | Lead Free | Lead Free | Lead Free |
| Length | 0.94inch | 0.9inch | 1.11inch | 43.15mm |
| Max Input Voltage | 26V | 38V | 5.5V | 38V |
| Max Output Current | 1.5A | 1.5A | 6A | 1A |
| Action |
Texas Instruments PT78ST133S DC DC Switching Regulators Overview
3.3V DC-DC converter with 1.5A output current and 4.95W output power. Features include over-temperature protection (OTP) and short-circuit protection (SCP). Operates with a non-isolated, single output, and accepts input voltages from 9V to 26V. This surface-mount device offers 80% efficiency and is RoHS compliant.
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