MC33264 Datasheet, PDF (1/8 Pages) ON Semiconductor – LOW DROPOUT MICROPOWER VOLTAGE REGULATORS WITH ON/OFF CONTROL

Order this document by MC33264/D
™ Micropower smallCAP
MC33264
Voltage Regulators with
On/Off Control
The MC33264 series are micropower low dropout voltage regulators
available in SO–8 and Micro–8 surface mount packages and a wide range of
output voltages. These devices feature a very low quiescent current (100 µA
in the ON mode; 0.1 µA in the OFF mode), and are capable of supplying
output currents up to 100 mA. Internal current and thermal limiting protection
is provided. They require only a small output capacitance for stability.
Additionally, the MC33264 has either active HIGH or active LOW control
(Pins 2 and 3) 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.
MC33264 Features:
• Low Quiescent Current (0.3 µA in OFF Mode; 95 µA in ON Mode)
• Low Input–to–Output Voltage Differential of 47 mV at 10 mA, and
131 mV at 50 mA
• Multiple Output Voltages Available
• Extremely Tight Line and Load Regulation
• Stable with Output Capacitance of Only
0.22 µF for 4.0 V, 4.75 V and 5.0 V Output Voltages
0.33 µF for 2.8 V, 3.0 V, 3.3 V and 3.8 V Output Voltages
• Internal Current and Thermal Limiting
• Logic Level ON/OFF Control
• Functionally Equivalent to TK115XXMC and LP2980
LOW DROPOUT
MICROPOWER VOLTAGE
REGULATORS WITH
ON/OFF CONTROL
SEMICONDUCTOR
TECHNICAL DATA
8
1
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
DM SUFFIX
PLASTIC PACKAGE
CASE 846A
(Micro–8)
PIN CONNECTIONS
Representative Block Diagram
1
Vin
2
On/Off
Thermal and
Anti–Sat
Protection
8
Vout
7
Base
Rint
5
3
On/Off
1.23 V
Vref
MC33264
Adj
52.5 k
6
Gnd
This device contains 37 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
Input ¹
On/Off ²
On/Off 3
N/C 4
8 Output
7 _Base
6 Gnd
5 _Adjust
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC33264D–2.8
MC33264D–3.0
MC33264D–3.3
MC33264D–3.8
MC33264D–4.0
MC33264D–4.75
MC33264D–5.0
TA = – 40° to +85°C
MC33264DM–2.8
MC33264DM–3.0
MC33264DM–3.3
MC33264DM–3.8
MC33264DM–4.0
MC33264DM–4.75
MC33264DM–5.0
SO–8
Micro–8
© Motorola, Inc. 1998
Rev 3
1