TS2576

3A / 52KHz Buck Switching Regulator

1/8

Version: B07

TO-220-5L

TO-263-5L

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General Description

TS2576 Series are step-down switching regulators with all required active functions. It is capable of driving 3A load

with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V and

adjustable output version.

TS2576 series operates at a switching frequency of 52kHz thus allowing smaller sized filter components than what

would be needed with lower frequency switching regulators. It substantially not only reduces the area of board size

but also the size of heat sink, and in some cases no heat sink is required. The ±4% tolerance on output voltage within

specified input voltages and output load conditions is guaranteed. Also, the oscillator frequency accuracy is within

±10%. External shutdown is included. Featuring 70µA (typical) standby current. The output switch includes cycle-by-

cycle current limiting, as well as thermal shutdown for full protection under fault conditions.

Ordering Information

Part No.

Package

Packing

TS2576CZ5xx C0

TO-220-5L

50pcs / Tube

TS2576CM5xx RN

TO-263-5L

800pcs / 13” Reel

Note: Where xx denotes voltage option, available are

50= 5.0V

33= 3.3V

Leave blank for adjustable version

Features

●

Output Voltage: 3.3V, 5V & Adjustable version

●

Adjustable Output Voltage Range 1.23V~37V ±4%

●

52kHz fixed switching frequency

●

Voltage Mode Non-synchronous PWM control

●

Thermal Shutdown and Current Limit Protection

●

ON/OFF Shutdown Control Input

●

High Efficiency

●

Short Circuit Protect (SCP)

●

Operating Voltage Can be up to 40V

●

Output Load Current 3A

●

Low Power Standby Mode

●

P+ Product Enhancement Tested

Application

●

Simple High-efficiency Step down Regulator

●

On-Card Switching Regulators

●

Positive to Negative Converter

Absolute Maximum Rating

Parameter

Symbol

Limit

Unit

Maximum Supply Voltage

+45

V

Recommend Operating Supply Voltage

4.5 to 40

V

SW, EN Pin Input Voltage

-0.3 to +25

V

Feedback Pin Voltage

-0.3 to +25

V

Power Dissipation

Internally Limited

W

Output Voltage to Ground

-1

V

Storage Temperature Range

-65 to +150

Operating Temperature Range

-40 to +125

ESD Susceptibility (HBM)

2

kV

Pin Definition:

1. Input

2. SW Output

3. Ground

4. Feedback

5. Enable