Texas Instruments SLTS028B Data Handbook
Summary
The PT5100 Series offers highly efficient 1-A positive step-down Integrated Switching Regulators (ISRs). This series provides multiple fixed output voltages (+3.3V to +15.0V) and is designed for robust onboard power regulation in diverse applications, including computer, industrial controls, battery-powered, and data storage equipment. The manual details key features such as over-temperature and short-circuit protection, wide input ranges, and high efficiencies (up to 95%). It covers comprehensive specifications, operation guides, and compatibility information for PCB design.
Page 1 Text Content
查询PT5101A供应商 PT5100 Series 1-A Positive Step-down
SLTS028B
Integrated Switching Regulator
(Revised 11/8/2001)
Features 90%+ Efficiency Internal Short-Circuit Protection Pin-Compatible with 3-Terminal Linear Regulators Laser-Trimmed Output Voltage Over-Temperature Protection Small Footprint Wide Input Range 5-Pin Mount Option (Suffixes L & M)
Description Ordering Information
The PT5100 modules are a series of PT5101 +5.0 Volts economical, easy-to-use 1-A positive PT5102 +12.0 Volts
Package (EAD)
PT5103 +3.3 Volts
step-down, Integrated Switching Regu-
PT5105 +6.5 Volts
lators (ISRs). These ISRs are compatible
PT5107 +15.0 Volts
with most TO-220 style linear regulators,
PT5109 +5.6 Volts
and when employed as a linear replace-
PT5110 +9.0 Volts
ment, provide significant benefits in
PT5111 +10.0 Volts
both efficiency and power dissipation.
PT5112 +8.0 Volts
They are recommended for use in a wide variety of on-board power regulation
PT Series Suffix (PT1234x) Pin-Out Information
applications. These include computer,
Case/Pin Order Package Pin Function
data storage, industrial controls, and
Configuration Suffix Code
battery powered equipment. Modules
Vertical (EAD)
are laser-trimmed for optimal output
Horizontal (EAA)
voltage accuracy, and exhibit excellent
SMD (EAC)
line and load regulation. The PT5100
Horizontal, 2-pin Tab (EAM)
also features output current limiting SMD, 2-Pin Tab (EAL) and thermal shutdown protection. (Reference the applicable package code drawing for
the dimensions and PC board layout)
Standard Application
+VIN +VOUT
PT5100
COMCOM
C1 = Optional 1µF ceramic capacitor C2 = Required 100µF electrolytic
For technical support and more information, see inside back cover or visit www.ti.com
Page Summary Contents For Texas Instruments SLTS028B Data Handbook
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 8 |
| File Size | 164.23 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What are required mounting procedures for 5-Pin Module options?
For modules with suffixes L & M, the tab pins must be soldered to the PCB board.
Does this regulator provide protection against power faults?
Yes, it features internal short-circuit protection, Over-Temperature Protection, and output current limiting.
What is the typical operating efficiency range?
Efficiency ranges from approximately 82% (at 3.3V) up to 95% (depending on voltage and load).
Are these switching regulators suitable for linear regulator applications?
Yes, they are recommended as replacements and are compatible with most TO-220 style linear regulators.