TC2575-5.0VAT datasheet, PDF - EEWORLD Datasheet

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TC2575-5.0VAT: Description3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5; CategoryPower/power management The power supply circuit; File Size166KB，25 Pages; ManufacturerTelCom Semiconductor, Inc. (Microchip Technology); Websitehttp://www.telcom-semi.com/

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TC2575-5.0VAT Overview

3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5

TC2575-5.0VAT Parametric

Parameter Name	Attribute value
Maker	TelCom Semiconductor, Inc. (Microchip Technology)
package instruction	TO-220, 5 PIN
Reach Compliance Code	unknow
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR
control mode	VOLTAGE-MODE
Maximum input voltage	40 V
Minimum input voltage	4.75 V
Nominal input voltage	12 V
JESD-30 code	R-PSFM-T5
Number of functions	1
Number of terminals	5
Maximum operating temperature	125 °C
Minimum operating temperature	-40 °C
Maximum output current	3.2 A
Package body material	PLASTIC/EPOXY
Package shape	RECTANGULAR
Package form	FLANGE MOUNT
Certification status	Not Qualified
surface mount	NO
Switch configuration	BUCK
Maximum switching frequency	63 kHz
Temperature level	AUTOMOTIVE
Terminal form	THROUGH-HOLE
Terminal location	SINGLE

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1.0A Step-Down Switching Regulator

TC2575

1.0A Step-Down Switching Regulator

FEATURES

3.3V, 5.0V, 12V, and Adjustable Output Versions

Adjustable Version Output Voltage Range of

1.23V to 37V

4% Max. Over Line and Load Conditions

Guaranteed 1.0 A Output Current

Wide Input Voltage Range; 4.75V to 40V

Requires Only 4 External Components

52kHz Fixed Frequency Internal Oscillator

TTL Shutdown Capability, Low Power Standby Mode

High Efficiency

Uses Readily Available Standard Inductors

Thermal Shutdown and Current Limit Protection

The TC2575 series of regulators are monolithic inte-

grated circuits ideally suited for easy and convenient design

of a step–down switching regulator (buck converter). All

circuits of this series are capable of driving a 1.0A load with

excellent line and load regulation. These devices are avail-

able in fixed output voltages of 3.3V, 5.0V, 12V, and

an adjustable output version.

These regulators were designed to minimize the num-

ber of external components to simplify the power supply

design. Standard series of inductors optimized for use with

the TC2575 are offered by several different inductor manu-

facturers.

Since the TC2575 converter is a switch-mode power

supply, its efficiency is significantly higher in comparison

with popular three-terminal linear regulators, especially with

higher input voltages. In many cases, the power dissipated

is so low, that no heatsinking is required or its size can be

reduced dramatically.

The TC2575 features include a guaranteed

±4%

toler-

ance on output voltage within specified input voltages and

output load conditions, and

±10%

on the oscillator frequency

(±2% over 0°C to +125°C). External shutdown is included,

featuring 80µA (typical) standby current. The output switch

includes cycle-by-cycle current limiting, as well as thermal

shutdown for full protection under fault conditions.

APPLICATIONS

Simple and High-Efficiency Step-Down

(Buck) Regulator

Efficient Pre–Regulator for Linear Regulators

On–Card Switching Regulators

Positive to Negative Converters (Buck–Boost)

Negative Step-Up Converters

Power Supply for Battery Chargers

GENERAL DESCRIPTION

PIN CONFIGURATIONS

5-Pin TO-220

ORDERING INFORMATION

Part

Number

TC2575-3.3VAT

TC2575-5.0VAT

TC2575-12.0VAT*

TC2575VAT**

Package

5-Pin TO-220

Temperature

Range

–40 to +125°C

TC2575

Note: * Contact factory for availability

** ADJ = 1.23 To 37V.

1 2 3 4 5

TC2575-1 3/13/00

TelCom Semiconductor reserves the right to make changes in the circuitry and specifications of its devices.

OUTPUT

GND

FEEDBACK

ON/OFF

TC2575-5.0VAT Related Products

	TC2575-5.0VAT	TC2575	TC2575-3.3VAT	TC2575-12.0VAT
Description	3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5	3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5	3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5	3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSFM5
Maker	TelCom Semiconductor, Inc. (Microchip Technology)	-	TelCom Semiconductor, Inc. (Microchip Technology)	TelCom Semiconductor, Inc. (Microchip Technology)
package instruction	TO-220, 5 PIN	-	TO-220, 5 PIN	TO-220, 5 PIN
Reach Compliance Code	unknow	-	unknow	unknow
Analog Integrated Circuits - Other Types	SWITCHING REGULATOR	-	SWITCHING REGULATOR	SWITCHING REGULATOR
control mode	VOLTAGE-MODE	-	VOLTAGE-MODE	VOLTAGE-MODE
Maximum input voltage	40 V	-	40 V	40 V
Minimum input voltage	4.75 V	-	4.75 V	4.75 V
Nominal input voltage	12 V	-	12 V	25 V
JESD-30 code	R-PSFM-T5	-	R-PSFM-T5	R-PSFM-T5
Number of functions	1	-	1	1
Number of terminals	5	-	5	5
Maximum operating temperature	125 °C	-	125 °C	125 °C
Minimum operating temperature	-40 °C	-	-40 °C	-40 °C
Maximum output current	3.2 A	-	3.2 A	3.2 A
Package body material	PLASTIC/EPOXY	-	PLASTIC/EPOXY	PLASTIC/EPOXY
Package shape	RECTANGULAR	-	RECTANGULAR	RECTANGULAR
Package form	FLANGE MOUNT	-	FLANGE MOUNT	FLANGE MOUNT
Certification status	Not Qualified	-	Not Qualified	Not Qualified
surface mount	NO	-	NO	NO
Switch configuration	BUCK	-	BUCK	BUCK
Maximum switching frequency	63 kHz	-	63 kHz	63 kHz
Temperature level	AUTOMOTIVE	-	AUTOMOTIVE	AUTOMOTIVE
Terminal form	THROUGH-HOLE	-	THROUGH-HOLE	THROUGH-HOLE
Terminal location	SINGLE	-	SINGLE	SINGLE

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