TS2507 Taiwan Semiconductor Company, TS2507 Datasheet

TS2507

Manufacturer Part Number

TS2507

Description

0.5A / 330KHz PWM Buck Controller

Manufacturer

Taiwan Semiconductor Company

Datasheet

1.TS2507.pdf (9 pages)

Current page: 1 of 9
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General Description

The TS2507 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip. These devise include a

reference voltage source, oscillation circuit, error amplifier and etc. TS2507 provides low-ripple power, high efficiency,

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

100%. This controller also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at

startup. 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 external P-channel Power MOS, a coil, capacitors, and

a diode connected externally, these components can function as step-down switching regulators. They serve as ideal

power supply units for portable devices when coupled with the SOP-8, providing such outstanding features as low

current consumption. Since this converter can accommodate an input

Features

●

Parameter

Feedback Pin Voltage

ON/OFF Pin Voltage

Switch Pin Voltage

Power Dissipation

Storage Temperature Range

Operating Temperature Range

Operating Supply Voltage

Thermal Resistance from Junction to case

Thermal Resistance from Junction to ambient

Absolute Maximum Rating

Input Voltage: 3.6V~24V

Output Voltage: 0.8V~Vcc

Duty Ratio: 0%~100% PWM Control

Oscillation Frequency: 330kHz typ.

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

Thermal Shutdown Function

Short Circuit Protect (SCP)

External SW P-Channel MOSFET

Low ESR Output Capacitor Application

SOP-8 Pb-Free Package

Pin Voltage

SOP-8

Pin Definition:

1. EN

2. Comp

3. Ocset

4. Vcc

5. FB

6. Vss

7. LX

5. Gate

Symbol

1/9

0.5A / 330KHz PWM Buck Controller

Ordering Information

Application

●

TS2507CS RL

Simple High-efficiency Step down Regulator

On-Card Switching Regulators

Part No.

VSS - 0.3 to VCC + 0.3

VSS - 0.3 to VSS + 26

VSS - 0.3 to VCC

Internally limited

-40 to +150

-20 to +125

+3.6 to +24

Rating

120

Package

SOP-8

www.DataSheet4U.com

2.5Kpcs / 13” Reel

TS2507

Version: A07

Packing

℃/W

Unit

℃

Related parts for TS2507

TS2507 Summary of contents

Page 1

... Gate General Description The TS2507 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip. These devise include a reference voltage source, oscillation circuit, error amplifier and etc. TS2507 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to very the duty ratio linearly form 100% ...

Page 2

... Low (regulator OFF =2.5V (ON =0.3V (OFF =1000pF LXR =1000pF LXF OUT EFFI OUT OUT T SD Name Gate LX Vss FB 2/9 TS2507 www.DataSheet4U.com Min Typ Max 0.784 0.800 0.816 -- 110 =0.2A -- 0.6 -- 0.3 260 330 2 -10 0 ...

Page 3

... Application Circuit A. Typical Application Circuit B. MLCC (TS2507) C. Standby Current (I =0A) < 4mA OUT 0.5A / 330KHz PWM Buck Controller 3/9 TS2507 www.DataSheet4U.com Version: A07 ...

Page 4

... Function Descriptions PWM Control The TS2507 integrates Pulse-Width-Modulation (PWM) control circuit into a single chip. the pulse width varies in a range from 0 to 100%, according to the load current. The ripple voltage produced by the switching can easily be removed through a filter because the switching frequency remains constant. Therefore, these controllers provide a low-ripple power over broad ranges of input voltage and load current ...

Page 5

... The power traces, including the PMOS Drain & Source trace, the Schottky and the C2 trace should be kept short, direct and wide to allow large current flow. 2. Connect the C5 to the VCC & EN pins of the TS2507 as closely as possible to get good power filter effect. 3. Keep the switching node, away from the sensitive FB node. ...

Page 6

... Electrical Characteristics Curve Figure 1. Feedback Voltage vs. Input Voltage Figure 3. IOSET vs. Input Voltage Figure 5. Feedback Voltage vs. Temperature 0.5A / 330KHz PWM Buck Controller Figure 2.Quiescent Current vs. Input Voltage Figure 4. Frequency vs. Input Voltage Figure 6. Quiescent Current vs. Temperature 6/9 TS2507 www.DataSheet4U.com Version: A07 ...

Page 7

... Electrical Characteristics Curve Figure 7. IOCSET vs. Temperature Figure 9. Efficiency vs. Output Current 0.5A / 330KHz PWM Buck Controller Figure 8. Frequency vs. Temperature Figure 10. Efficiency vs. Output Current 7/9 TS2507 www.DataSheet4U.com Version: A07 ...

Page 8

... SOP-8 Mechanical Drawing DIM Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec Lot Code 8/9 TS2507 www.DataSheet4U.com SOP-8 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX. 4.80 5.00 0.189 0.196 3.80 4.00 0.150 0.157 1.35 1 ...

Page 9

... The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 0.5A / 330KHz PWM Buck Controller Notice 9/9 TS2507 www.DataSheet4U.com Version: A07 ...

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