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TPSM84203 Datasheet(PDF) 10 Page - Texas Instruments

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No. de pieza TPSM84203
Descripción Electrónicos  1.5-A, 28-V Input, TO-220 Power Module
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPSM84203 Datasheet(HTML) 10 Page - Texas Instruments

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VIN
GND
VOUT
+
+
VREF
Comp
Power
Stage
and
Control
Logic
Thermal
Shutdown
Shutdown
Logic
OCP
VIN
UVLO
Oscillator
Soft
Start
VOUT
Copyright © 2017, Texas Instruments Incorporated
10
TPSM84203, TPSM84205, TPSM84212
SLUSCV7 – JULY 2017
www.ti.com
Product Folder Links: TPSM84203 TPSM84205 TPSM84212
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The TPSM84203, TPSM84205, and TPSM84212 devices are 28 V input, 1.5 A, synchronous step down
converters with PWM, MOSFETs, inductor, and control circuitry integrated into a TO-220 footprint package. The
device integration enables small designs, while improving efficiency over a traditional linear regulator design. The
TPSM842xx family provides fixed output voltages of 3.3 V, 5.0 V and 12.0 V. The fixed 400 kHz (typ) switching
frequency allows small size and low output voltage ripple. Under light load conditions, these devices are
designed to operate in high-efficiency pulse-skipping mode. These devices provide accurate voltage regulation
for a variety of loads by using a precision internal voltage reference. These devices have been designed to safely
start up into a pre-biased output voltage. Thermal shutdown and current limit features protect the device during
an overload condition. The 3-pin, TO-220 footprint package offers improved performance over traditional linear
regulators packaged in the standard footprint.
7.2 Functional Block Diagram


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