LP2985IM5-3.3 National Semiconductor, LP2985IM5-3.3 Datasheet

Voltage Regulator IC

LP2985IM5-3.3

Manufacturer Part Number
LP2985IM5-3.3
Description
Voltage Regulator IC
Manufacturer
National Semiconductor
Datasheets

Specifications of LP2985IM5-3.3

No. Of Pins
5
Output Current
0.15A
Mounting Type
Surface Mount
Voltage Regulator Type
LDO Linear
Peak Reflow Compatible (260 C)
No
Output Voltage
3.3V
Current Rating
150mA
Output Voltage Max
3.3V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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© 2000 National Semiconductor Corporation
LP2985
Micropower 150 mA Low-Noise Ultra Low-Dropout
Regulator
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2985 is a 150 mA, fixed-output voltage regulator de-
signed to provide ultra low-dropout and low noise in battery
powered applications.
Using an optimized VIP
cess, the LP2985 delivers unequalled performance in all
specifications critical to battery-powered designs:
Dropout Voltage: Typically 300 mV
7 mV
Ground Pin Current: Typically 850 µA
75 µA
Enhanced Stability: The LP2985 is stable with output ca-
pacitor ESR as low as 5 m , which allows the use of ceramic
capacitors on the output.
Sleep Mode: Less than 1 µA quiescent current when
ON/OFF pin is pulled low.
Smallest Possible Size: SOT-23 and micro SMD packages
use absolute minimum board space.
Precision Output: 1% tolerance output voltages available
(A grade).
Low Noise: By adding a 10 nF bypass capacitor, output
noise can be reduced to 30 µV (typical).
Multiple voltage options, from 2.5V to 5.0V, are available as
standard products. Consult factory for custom voltages.
Block Diagram
VIP
is a trademark of National Semiconductor Corporation.
@
@
1 mA load.
1 mA load.
(Vertically Integrated PNP) pro-
@
@
DS100140
150 mA load, and
150 mA load, and
Features
n Ultra low dropout voltage
n Guaranteed 150 mA output current
n Smallest possible size (SOT-23, micro SMD package)
n Requires minimum external components
n Stable with low-ESR output capacitor
n
n Low ground pin current at all loads
n Output voltage accuracy 1% (A Grade)
n High peak current capability
n Wide supply voltage range (16V max)
n Low Z
n Overtemperature/overcurrent protection
n −40˚C to +125˚C junction temperature range
n Custom voltages available
Applications
n Cellular Phone
n Palmtop/Laptop Computer
n Personal Digital Assistant (PDA)
n Camcorder, Personal Stereo, Camera
<
1 µA quiescent current when shut down
OUT
: 0.3
typical (10 Hz to 1 MHz)
DS100140-1
www.national.com
March 2000

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