LP3982IMM-1.8 National Semiconductor, LP3982IMM-1.8 Datasheet
LP3982IMM-1.8
Manufacturer Part Number
LP3982IMM-1.8
Description
Linear Voltage Regulator IC
Manufacturer
National Semiconductor
Datasheets
1.LP3982IMMX-2.82.pdf
(12 pages)
2.LP3982IMM-2.5.pdf
(12 pages)
3.LP3982IMM-2.5.pdf
(12 pages)
Specifications of LP3982IMM-1.8
Dropout Voltage Vdo
120mV
No. Of Pins
8
Output Current
0.3A
Operating Temperature Range
-40°C To +85°C
Linear Regulator Type
LDO Fixed Positive
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LP3982IMM-1.8
Manufacturer:
NS
Quantity:
23
Company:
Part Number:
LP3982IMM-1.8
Manufacturer:
NS
Quantity:
195
Part Number:
LP3982IMM-1.8
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
LP3982IMM-1.8/NOPB
Manufacturer:
NS/国半
Quantity:
20 000
© 2006 National Semiconductor Corporation
LP3982
Micropower, Ultra Low-Dropout, Low-Noise, 300mA
CMOS Regulator
General Description
The LP3982 low-dropout (LDO) CMOS linear regulator is
available in 1.8V, 2.5V, 2.77V, 2.82V, 3.0V, 3.3V, and adjust-
able versions. They deliver 300mA of output current. Pack-
aged in an 8-Pin MSOP, the LP3982 is pin and package
compatible with Maxim’s MAX8860. The LM3982 is also
available in the small footprint LLP package.
The LP3982 suits battery powered applications because of
its shutdown mode (1nA typ), low quiescent current (90µA
typ), and LDO voltage (120mV typ). The low dropout voltage
allows for more utilization of a battery’s available energy by
operating closer to its end-of-life voltage. The LP3982’s
PMOS output transistor consumes relatively no drive current
compared to PNP LDO regulators.
This PMOS regulator is stable with small ceramic capacitive
loads (2.2µF typ).
These devices also include regulation fault detection, a
bandgap voltage reference, constant current limiting and
thermal overload protection.
Application Circuit
DS200369
Features
n MAX8860 pin, package and spec. compatible
n LLP space saving package
n 300mA guaranteed output current
n 120mV typical dropout
n 90µA typical quiescent current
n 1nA typical shutdown mode
n 60dB typical PSRR
n 2.5V to 6V input range
n 120µs typical turn-on time
n Stable with small ceramic output capacitors
n 37µV RMS output voltage noise (10Hz to 100kHz)
n Over temperature/over current protection
n
Applications
n Wireless handsets
n DSP core power
n Battery powered electronics
n Portable information appliances
±
2% output voltage tolerance
20036931
@
300mA
www.national.com
March 2006
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