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10 nF

1 µF

1 µF

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LP3995

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LP3995

SNVS179F – FEBRUARY 2003 – REVISED SEPTEMBER 2015

LP3995 Micropower 150-mA CMOS Voltage Regulator With Active Shutdown

1 Features

3 Description

The LP3995 linear regulator is designed to meet the

1

•

Input Range: 2.5 V to 6 V

requirements

of

portable

battery-powered

•

Accurate Output Voltage: ±75 mV / 2%

applications, providing an accurate output voltage

•

Typical Dropout with 150 mA Load: 60 mV

with low noise and low quiescent current. Ideally

suited for powering RF and analog devices, this

•

Virtually Zero Quiescent Current When Disabled

device can also be used to meet more general circuit

•

Low Output Voltage Noise

needs in which a fast turnoff is essential.

•

Stable With a 1-µF Output Capacitor

For battery-powered applications the low dropout and

•

Output Current: 150 mA

low ground current provided by the device allows the

•

Fast Turnon: 30 µs (Typical)

lifetime

of

the

battery

to

be

maximized.

The

Enable(/Disable) control function allows the system to

•

Fast Turnoff: 175 µs (Typical)

further extend the battery lifetime by reducing the

•

Stable With Ceramic Capacitor

power consumption to virtually zero. This function

•

Logic Controlled Enable

also incorporates an active discharge circuit on the

•

Fast Turnon

output for faster device shutdown. Where the fast

turnoff is not required the LP3999 linear regulator is

•

Active Disable for Fast Turnoff

recommended. The LP3995 also features internal

•

Thermal-Overload and Short-Circuit Protection

protection

against

short-circuit

currents

and

•

−40 to +125°C Junction Temperature Range for

overtemperature conditions.

Operation

The LP3995 is designed to be stable with small 1-µF

ceramic capacitors. The small outline of the LP3995

2 Applications

DSBGA package with the required ceramic capacitors

can realize a system application within minimal board

•

GSM Portable Phones

area. Performance is specified for a

−40°C to +125°C

•

CDMA Cellular Handsets

temperature range.

•

Wideband CDMA Cellular Handsets

The LP3995 is available in fixed output voltages from

•

Bluetooth Devices

1.5 V to 3.3 V, in DSBGA or WSON packages. For

•

Portable Information Appliances

other package options or output-voltage options,

contact your local TI sales office.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE

DSBGA (5)

1.502 mm × 1.045 mm (MAX)

LP3995

WSON (6)

3.29 mm × 2.92 mm (NOM)

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Typical Application Circuit

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.