MC33375 Datasheet, PDF (1/12 Pages) ON Semiconductor – LOW DROPOUT MICROPOWER VOLTAGE REGULATOR

MC33375
Advance Information
Low Dropout 300 mA
Voltage Regulator
with ON/OFF Control
The MC33375 series are micropower low dropout voltage
regulators available in a wide variety of output voltages as well as
packages, SOT–223, and SOP–8 surface mount packages. These
devices feature a very low quiescent current and are capable of
supplying output currents up to 300 mA. Internal current and thermal
limiting protection are provided by the presence of a short circuit at the
output and an internal thermal shutdown circuit.
The MC33375 has a control pin that allows a logic level signal to
turn–off or turn–on the regulator output.
Due to the low input–to–output voltage differential and bias current
specifications, these devices are ideally suited for battery powered
computer, consumer, and industrial equipment where an extension of
useful battery life is desirable.
Features:
• Low Quiescent Current (0.3 mA in OFF mode; 125 mA in ON mode)
• Low Input–to–Output Voltage Differential of 25 mV at I_O = 10 mA,
and 260 mV at I_O = 300 mA
• Extremely Tight Line and Load Regulation
• Stable with Output Capacitance of only 0.33 mF for 2.5 V Output
Voltage
• Internal Current and Thermal Limiting
• Logic Level ON/OFF Control
Simplified Block Diagram
V_in
V_out
On/Off
Thermal &
Anti–sat
Protection
Rint
On/Off
Block
1.23 V
V. Ref.
54 K
Gnd
http://onsemi.com
LOW DROPOUT
MICROPOWER VOLTAGE
REGULATOR
Gnd
4
AYW
375xx
A = Manufacturing Code
YW = Date
xx = Version
1
2
3
V_in ON/OFF V_out
4
1
3
PLASTIC
ST SUFFIX
CASE 318E
1
Input
2
Gnd
3
Gnd
4
ON/OFF
ALYW
375xx
8
Output
7
Gnd
6
Gnd
5
N/C
Pins 4 and 5 Not Connected
AL = Manufacturing Code
YW = Date
xx = Version
8
1
PLASTIC
D SUFFIX
CASE 751
This device contains 41 active transistors
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
ORDERING INFORMATION
See detailed ordering and shipping information in the
package dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2000
1
March, 2000 – Rev. 4
Publication Order Number:
MC33375/D