UNISONIC TECHNOLOGIES CO UR0033 Technical data

UTC UR0033 LINEAR INTEGRATED CIRCUIT

2 CHANNEL LOW-DROPOUT
VOLTAGE REGULATOR

FEATURES

*Dual Output: ADJ/1A, 3.3V/1A.
*Output Voltage Precision of ±2%.

*Output consists of PNP power transistor with

low-dropout voltage.
*Built-in over current protection circuit (OCP).
*Built-in Thermal Shut Down Circuit (TSD).
*Ideal for Hard Disk Drives applications.

1

TO-252-5

1: Vcc 2: ADJ 3: GND 4: Vo1 5: VO2

*Pb-free plating product number: UR0033L

PIN DISCRIPTION

PIN NO. PIN NAME FUNCTION

1 Vcc Power Supply
2 ADJ 1.25V
3 GND Ground
4 Vo1 ADJ Output
5 Vo2 3.3V Output

UTC UNISONIC TECHNOLOGIES CO., LTD. 1

QW-R102-023,A

UTC UR0033 LINEAR INTEGRATED CIRCUIT

BLOCK DIAGRAM

Vcc

PIN 1

Reference

Voltage

Thermal

Shut Down

Vcc

+

-

Current

Limit

Sat.

Prevention

Vcc

+

-

Current

Limit

Vcc

Vcc

Vo

PIN 4

ADJ

PIN 2

Vo2

PIN 5

1

Sat.

Prevention

PIN 3

GND

UTC UNISONIC TECHNOLOGIES CO., LTD. 2

QW-R102-023,A