CS5203A-1 データシートの表示（PDF） - ON Semiconductor

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CS5203A-1

3.0 A Adjustable, and Fixed 1.5 V, 3.3 V and 5.0 V Linear Regulators

ON Semiconductor 

CS5203A−1, CS5203A−2,

CS5203A−3, CS5203A−5

3.0 A Adjustable, and

Fixed 1.5 V, 3.3 V and 5.0 V

Linear Regulators

The CS5203A series of linear regulators provides 3.0 A at

adjustable and fixed voltages with an accuracy of ±1.0% and ±2.0%

respectively. The adjustable version uses two external resistors to set

the output voltage within a 1.25 V to 13 V range.

The regulators are intended for use as post regulators and

microprocessor supplies. The fast loop response and low dropout

voltage make these regulators ideal for applications where low voltage

operation and good transient response are important.

The circuit is designed to operate with dropout voltages as low as

1.0 V depending on the output current level. The maximum quiescent

current is only 10 mA at full load.

The regulators are fully protected against overload conditions with

protection circuitry for Safe Operating Area (SOA), overcurrent and

thermal shutdown.

The CS5203A is pin compatible with the LT1085 family of linear

regulators but has lower dropout voltage.

The regulators are available in TO−220−3 and surface mount

D2PAK−3 packages.

Features

• Pb−Free Package is Available

• Output Current to 3.0 A

• Output Trimmed to ±1.0%

• Dropout Voltage 1.05 V @ 3.0 A

• Fast Transient Response

• Fault Protection Circuitry

♦ Thermal Shutdown

♦ Overcurrent Protection

♦ Safe Area Protection

http://onsemi.com

12 3

123

123

TO−220

THREE LEAD

T SUFFIX

CASE 221A

D2PAK−3

DP SUFFIX

CASE 418AB

D2PAK−3

(Short Lead)

DPS SUFFIX

CASE 418F

Adjustable

Output

Tab = VOUT

Pin 1. Adj

2. VOUT

3. VIN

Fixed

Output

Tab = VOUT

Pin 1. GND

2. VOUT

3. VIN

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 8 of this data sheet.

DEVICE MARKING INFORMATION

See general marking information in the device marking

section on page 8 of this data sheet.

VOUT

VIN

Thermal

Shutdown

Bandgap

Output

Current

Limit

− + Error

Amplifier

Adj

Figure 1. Block Diagram − CS5203A−1

© Semiconductor Components Industries, LLC, 2004

1

June, 2004 − Rev. 7

Publication Order Number:

CS5203A/D

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