LP3982ILD-ADJ Datasheet, PDF (1/24 Pages) Texas Instruments – MAX8860 Pin, Package and Spec. Compatible, WSON Space Saving Package

LP3982
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SNVS185D – FEBRUARY 2002 – REVISED APRIL 2013
LP3982 Micropower, Ultra Low-Dropout, Low-Noise, 300mA CMOS Regulator
Check for Samples: LP3982
FEATURES
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•2 MAX8860 Pin, Package and Spec. Compatible
• WSON Space Saving Package
• 300mA Output Current
• 120mV Typical Dropout @ 300mA
• 90μA Typical Quiescent Current
• 1nA Typical Shutdown Mode
• 60dB Typical PSRR
• 2.5V to 6V Input Range
• 120μs Typical Turn-on Time
• Stable with Small Ceramic Output Capacitors
• 37μV RMS Output Voltage Noise (10Hz to
100kHz)
• Over Temperature/Over Current Protection
• ±2% Output Voltage Tolerance
APPLICATIONS
• Wireless Handsets
• DSP Core Power
• Battery Powered Electronics
• Portable Information Appliances
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 adjustable versions. They deliver
300mA of output current. Packaged in an 8-Pin
VSSOP, the LP3982 is pin and package compatible
with Maxim's MAX8860. The LM3982 is also
available in the small footprint WSON 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
V_IN
2.2PF
V_O
IN
OUT
100k
2.2PF
CERAMIC
SHDN FAULT
GND ^CC
33n
F
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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