8182
8182 is LOW-DROPOUT/ 3 V REGULATOR manufactured by Allegro MicroSystems.
8182 PRELIMINARY INFORMATION DATA SHEET
LOW-DROPOUT, (Subject to change without notice) 3 V REGULATOR November 14, 1994
LOW-DROPOUT, 3 V REGULATOR
- HIGH EFFICIENCY
Designed specifically to meet the requirement for extended operation of battery-powered equipment such as cordless and cellular telephones, the A8182SL voltage regulator offers the reduced dropout voltage and quiescent current essential for maximum battery life. Applicable also to palmtop puters and personal data assistants, the device delivers a regulated 3 V output at up to 150 m A.
Data Sheet 27468.2
OUT IN ENABLE GND
1 2 3
3V
8 7 6
OUT IN P RESET
VR 4 5
Input Voltage, VI
- - . . . . 10 V Output Current, IO
- . . . . 150 m A- Enable Input Voltage, VE
- - VI Reset Output Voltage, VOR
- . . . VI Reset Output Current, IOR . . . . 1.0 m A Operating Temperature Range, TA
- - . . . -20°C to +85°C Junction Temperature, TJ . . . +150°C† Storage Temperature Range, TS
- - . . -40°C to +150°C
- Output current rating is limited by input voltage, duty cycle, and ambient temperature. Under any set of conditions, do not exceed a junction temperature of +150°C. See next page.
D E N U RE N E I T F N E O R C R S I O D F
- Dwg. PS-020
A PMOS pass element provides a typical dropout voltage of only 85 m V at 60 m A of load current. The low dropout voltage permits deeper battery discharge before output regulation is lost. Furthermore, quiescent current does not increase as the dropout voltage is approached, an ideal feature in standby/resume power systems where data integrity is crucial. Regulator accuracy and excellent temperature characteristics are provided by a bandgap reference. An ENABLE input and RESET output gives the designer plete control over power up, standby, or power down.
This device is supplied in an 8-lead small-outline plastic package (SOIC) for surface-mount applications. The...
