LP3992 Datasheet, PDF (1/23 Pages) National Semiconductor (TI) – Micropower 1.5V CMOS Voltage Regulator with Shutdown Control

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LP3992
SNVS192C – OCTOBER 2002 – REVISED NOVEMBER 2015
LP3992 Micropower 1.5-V CMOS Voltage Regulator With Shutdown Control
1 Features
•1 Input Voltage: 1.9 V to 5.2 V
• Operation From a Low Input Voltage: 1.9 V
• Accurate Output Voltage: 1.5 V ± 0.09 V
• Quiescent Current in Shutdown: < 1.5 µA
• Stable With an Output Capacitor: 1 µF
• Ensured Output Current: 30 mA
• Low Output Voltage Noise: 300 µV_RMS
• Low Quiescent Current: 29-µA Typical
• Stable With a Ceramic Capacitor
• Logic Controlled Enable
• Fast Turnon and Turnoff
• Thermal-Overload and Short-Circuit Protection
• –40°C to +125°C Junction Temperature Range
3 Description
The LP3992 regulator is designed to meet the
requirements of portable, battery-powered systems
providing an accurate output voltage, low noise, and
low quiescent current. Battery life is prolonged by the
ability of the LP3992 to provide a 1.5-V output from
the low input voltage of 1.9 V. Additionally, when
switched to a shutdown mode via a logic signal at the
enable (EN) pin, the power consumption is reduced
to virtually zero. The LP3992 also features short-
circuit and thermal-shutdown protection.
The LP3992 is designed to be stable with space-
saving ceramic capacitors as small as 1 µF.
Performance is specified for a –40°C to +125°C
temperature range.
For output voltages other than 1.5 V, and for
additional package options, contact TI.
2 Applications
• GSM Portable Phones
• CDMA Cellular Handsets
• Wideband CDMA Cellular Handsets
• Bluetooth Devices
• Portable Information Appliances
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LP3992
SOT-23 (5)
2.90 mm × 1.60 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
V_IN
C_IN
1 PF
V_EN
High= ON
Low= OFF
IN
OUT
LP3992
EN
CAP
GND
V_OUT
C_OUT
1 PF
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.