LP8358 Datasheet, PDF (1/10 Pages) National Semiconductor (TI) – 150mA, UCap, Low Dropout Voltage Regulator with Power Good

February 2003
LP8358
150mA, µCap, Low Dropout Voltage Regulator with
Power Good
General Description
The LP8358 is a µCap, precise CMOS voltage regulator with
low Power good output R_DSON.
It provides up to 150mA and consumes a typical of 10nA in
shutdown mode. The LP8358 output stage is designed with
a push pull output for faster transient recovery response.
The LP8358 is optimized to work with low value, low cost
ceramic capacitors. The output typically require only 1µF of
output capacitance for stability. The enable pin can be tied to
V_IN for easy board layout.
The LP8358 is designed for portable, battery powered equip-
ment applications with small space requirements.
The LP8358 is available in a 5-pin SOT-23 package. Perfor-
mance is specified for the −40˚C to +125˚C temperature
range and is available in a fixed 1.2V. For other output
voltage options, please contact National Semiconductor.
Features
n Low power good R_DSON: 20Ω
n Power good indicator
n Stability with low ESR capacitors
n Low ground current: 120µA
n 150mA output current
n "Zero" shutdown current mode
n Fast transient recovery response
n Auto discharge
n Thermal shutdown
n Current limiting
Applications
n Processor power-up sequencing
n Laptop, notebook and palm top computer
n PCMCIA V_CC and V_PP regulation switching
Typical Application
Ordering Information
Package
5-Pin SOT-23
Part Number
LP8358MF-1.2
LP8358MFX-1.2
20057919
Package Marking
LH2B
Transport Media
1k Units Tape and Reel
3k Units Tape and Reel
NSC Drawing
MF05A
© 2003 National Semiconductor Corporation DS200579
www.national.com