UTC UR3325
LINEAR INTEGRATED CIRCUIT
2 CHANNEL LOW-DROPOUT VOLTAGE REGULATOR
FEATURES
*Dual Output: 3.3V/1A, 2.5V/1A. ...
UTC UR3325
LINEAR INTEGRATED CIRCUIT
2 CHANNEL LOW-DROPOUT VOLTAGE
REGULATOR
FEATURES
*Dual Output: 3.3V/1A, 2.5V/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: NC
3: GND
4: Vo1 5: VO2
PIN DISCRIPTION
PIN NO.
1 2 3 4 5
PIN NAME
Vcc N.C. GND Vo1 Vo2 Power Supply Not internally connected Ground 3.3V Output 2.5V Output
FUNCTION
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-017,C
UTC UR3325
BLOCK DIAGRAM
Vcc PIN 1
LINEAR INTEGRATED CIRCUIT
Vcc Reference Voltage + -
Vcc
Vo1 Current Limit Sat. Prevention PIN 4
Vcc Vcc + Vo2 Thermal Shut Down Current Limit Sat. Prevention PIN 5
NC PIN 2
PIN 3 GND
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R102-017,C
UTC UR3325
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL RATINGS
18 1000* -40 ~ +85 -55 ~ +150 150
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
UNIT
V mW °C °C °C Supply Voltage Vcc Power dissipation PD Operating temperature range Topr Storage temperature range Tstg Junction temperature Tj * PD derated at 8mW/℃ for temperatures above Ta=25℃
OPERATING RATINGS(Ta=25℃)
PARAMETER
Input Voltage 3.3V Output current 2.5V Output current
SYMBOL
Vcc Io1 Io2
MIN
3.0
MAX
16.0 1 1
UNIT
V A A
ELECTRICAL CHARACTERISTICS
(Refer to the test circuit, Ta=25℃, VCC=5V unless otherwise specified.)
PARAMETER
Bias Current 3.3V Outp...