8182

Features:

High Efficiency Provides Extended Battery Life
85 mV Typical Dropout Voltage at I_O  = 60 mA
46 A Typical Quiescent Current at V_I = 6 V
Less than 1 A "Sleep" Current
Up to 150 mA Output Current
CMOS-Compatible ON/OFF Control
For Power-Up, Standby, or Shutdown
Internal Thermal Protection
Surface-Mount Package
UED PROD


Application

Cordless and Cellular Telephones
Personal Data Assistants
Personal Communicators
Palmtop Computers


Pinout




Specifications

Input Voltage, V_I . . . . . . . . . . . . . .  10 V
Output Current, I_O . . . . . . . . .   ..150 mA*
Enable Input Voltage, V_E . . . . . . . . . .  V_I
Reset Output Voltage, V_OR . . . . . . . .  .V_I
Reset Output Current, I_OR . . . .   .1.0 mA
Operating Temperature Range,
     T_A . . . . . . . . . . . . .   -...20  to +85
Junction Temperature, T_J. . . .....  +150+
Storage Temperature Range,
     T_S . . . . . . . . . . . .   .......-40 to +150
 
* 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 shutdowncircuitry.  These conditions can be tolerated but should be avoided.



Description

Designed specifically to meet the requirement for extended opera-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, A8182SL 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 of A8182SL are provided by a bandgap reference.  An ENABLE input and RESET output gives the designer complete control over power up,standby, or power down.

A8182SL 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.