8182 Datasheet PDF | Allegro MicroSystems





(PDF) 8182 Datasheet PDF

Part Number 8182
Description LOW-DROPOUT/ 3 V REGULATOR . HIGH EFFICIENCY
Manufacture Allegro MicroSystems
Total Page 8 Pages
PDF Download Download 8182 Datasheet PDF

Features: 8182 PRELIMINARY INFORMATION DATA SHEET LOW-DROPOUT, (Subject to change without notice) 3 V REGULATOR November 14, 199 4 8182 LOW-DROPOUT, 3 V REGULATOR — HIGH EFFICIENCY Designed specifically t o meet the requirement for extended ope ration of battery-powered equipment suc h as cordless and cellular telephones, the A8182SL voltage regulator offers th e reduced dropout voltage and quiescent current essential for maximum battery life. Applicable also to palmtop comput ers and personal data assistants, the d evice delivers a regulated 3 V output a t up to 150 mA. Data Sheet 27468.2 OU T IN ENABLE GND 1 2 3 3V 8 7 6 OUT IN COMP RESET VR 4 5 Input Voltage, V I . . . . . . . . . . . . . . 10 V Outp ut Current, IO . . . . . . . . . 150 mA * Enable Input Voltage, VE . . . . . . . . . . VI Reset Output Voltage, VOR . . . . . . . . VI Reset Output Current, IOR . . . . 1.0 mA Operating Temperatur e Range, TA . . . . . . . . . . . . . - 20°C to +85°C Junction Temperature, TJ . . . +150°C† Storage Temp.

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8182 datasheet
8182
LOW-DROPOUT,PRELIMINARY INFORMATION DATA SHEET
(Subject to change without notice)
3NovVemRberE14G, 1U994LATOR
8182
LOW-DROPOUT, 3 V REGULATOR
— HIGH EFFICIENCY
Designed specifically to meet the requirement for extended opera-
UCT YOUT 1
D LIN 2
O NENABLE 3
ED PRNCE OGND 4
3V
VR
8 OUT
7 IN
6 COMP
5 RESET
Dwg. PS-020
tion 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 computers and personal data assistants, the
device delivers a regulated 3 V output at up to 150 mA.
A PMOS pass element provides a typical dropout voltage of only
85 mV at 60 mA 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 complete 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 A8182SL is rated for
operation over a temperature range of -20°C to +85°C.
TINU EREABSOLUTE MAXIMUM RATINGS
N FInput Voltage, VI . . . . . . . . . . . . . . 10 V
EOutput Current, IO . . . . . . . . . 150 mA*
O REnable Input Voltage, VE . . . . . . . . . . VI
CReset Output Voltage, VOR . . . . . . . . VI
S RReset Output Current, IOR . . . . 1.0 mA
IOperating Temperature Range,
OTA . . . . . . . . . . . . . -20°C to +85°C
D FJunction Temperature, TJ . . . +150°C
Storage Temperature Range,
TS . . . . . . . . . . . . -40°C to +150°C
FEATURES AND BENEFITS
s High Efficiency Provides Extended Battery Life
s 85 mV Typical Dropout Voltage at IO = 60 mA
s 46 µA Typical Quiescent Current at VI = 6 V
Less than 1 µA “Sleep” Current
s Up to 150 mA Output Current
s CMOS-Compatible ON/OFF Control
For Power-Up, Standby, or Shutdown
s Internal Thermal Protection
s Surface-Mount Package
APPLICATIONS
s Cordless and Cellular Telephones
* Output current rating is limited by input voltage,
duty cycle, and ambient temperature. Under any
set of conditions, do not exceed a junction temp-
erature of +150°C. See next page.
† Fault conditions that produce excessive junction
temperature will activate device thermal shutdown
circuitry. These conditions can be tolerated but
should be avoided.
s Personal Data Assistants
s Personal Communicators
s Palmtop Computers
Always order by complete part number: A8182SL .

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