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Texas Instruments PT78ST133S DC DC Switching Regulators

3.3V DC-DC converter with 1.5A output current and 4.95W output power.

In Stock ActiveTexas InstrumentsPT78STSMD/SMTRoHS
PT78ST133S SMD/SMT package illustration

Same model may have multiple batches, images only for reference.

PT78ST133S
Manufacturer
Part Number (MPN)
PT78ST133S
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
PDF PT78ST133S Datasheet
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Ordering Code Family

PT78ST groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

Texas Instruments PT78ST133S DC DC Switching Regulators technical specifications.

General

Series
PT78ST100
RoHS
Yes
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
Isolation
Non-Isolated

Related Parts Comparison (PT78ST133S vs PT78ST105V vs PT5401C vs PT6101C)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
SeriesPT78ST100PT78ST100Excalibur™ PT5400PT6100
Operating Temperature-40°C ~ 85°C-40°C ~ 85°C-40°C ~ 85°C-40°C ~ 85°C
RoHSYesYesYesYes
Current Output 11.5A1.5A6A1A
Depth22.86mm7.87mm22.86mm17.01mm
Efficiency80%85%93%89%
Height0.34inch0.94inch7.87mm9.4mm
IsolationNon-IsolatedNon-IsolatedNon-IsolatedNon-Isolated
Lead FreeLead FreeLead FreeLead FreeLead Free
Length0.94inch0.9inch1.11inch43.15mm
Max Input Voltage26V38V5.5V38V
Max Output Current1.5A1.5A6A1A
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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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