TS2515

3A / 380KHz PWM Buck Converter

1/7

Version: A09

SOP-8

General Description

TS2515 consists of step-down switching regulator with PWM control. These devise include a reference voltage

source, oscillation circuit, error amplifier, internal PMOS and etc. TS2515 provides low-ripple power, high efficiency,

and excellent transient characteristics. The PWM control circuit is able to the duty ratio linearly form 0 up to 100%. An

enable function, an over current protect function and short circuit protect function are built inside, and when OCP or

SCP happens, the operation frequency will be reduced. Also, an internal compensation block is built in to minimum

external component count. With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode

connected externally, these ICs can function as step-down switching regulators. They serve as ideal power supply

units for portable devices when coupled with the SOP-8L package, providing such outstanding features as low current

consumption. Since this converter can accommodate an input voltage up to 23V, it is also suitable for the operation

via an AC adapter.

Ordering Information

Part No.

Package

Packing

TS2515CS RL

SOP-8

2.5Kpcs / 13” Reel

Features

●

Input Voltage: 4.5V~23V

●

Output Voltage: 1.222V~Vcc

●

Duty Ratio: 0%~100% PWM Control

●

Oscillation Frequency: 380kHz typ.

●

Soft-Start (SS), Current Limit (CL), Enable Function

●

Thermal Shutdown Function

●

Short Circuit Protect (SCP)

●

Built-in Internal SW P-Channel MOSFET

Application

●

Simple High-efficiency Step down Regulator

●

On-Card Switching Regulators

Parameter

Symbol

Rating

Unit

VCC Pin Voltage

Vss -0.3 to Vss +25

V

Feedback Pin Voltage

Vss -0.3 to VCC

V

ON/OFF Pin Voltage

Vss -0.3 to VCC +0.3

V

Switch Pin Voltage

Vss -0.3 to VCC +0.3

V

Power Dissipation

Internally limited

mW

Storage Temperature Range

-40 to +150

ºC

Operating Temperature Range

-20 to +125

ºC

Junction Temperature Range

-40 to +150

ºC

Operating Supply Voltage

+4.5 to +23

V

Thermal Resistance from Junction to case

25

℃/W

Thermal Resistance from Junction to ambient

70

℃/W

Pin Definition:

1. N/C

8. SS

2. Vcc

7. EN

3. SW

6. NC

4. Vss

5. FB