LP3990TL-0.8 Datasheet, PDF (1/24 Pages) Texas Instruments – LP3990 150mA Linear Voltage Regulator for Digital Applications

LP3990
www.ti.com
SNVS251I – MAY 2004 – REVISED MAY 2013
LP3990 150mA Linear Voltage Regulator for Digital Applications
Check for Samples: LP3990
FEATURES
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•2 1% Voltage Accuracy at Room Temperature
• Stable with Ceramic Capacitor
• Logic Controlled Enable
• No Noise Bypass Capacitor Required
• Thermal-Overload and Short-Circuit Protection
KEY SPECIFICATIONS
• Input Voltage Range, 2.0 to 6.0V
• Output Voltage Range, 0.8 to 3.3V
• Output Current, 150mA
• Output Stable - Capacitors, 1.0µF
• Virtually Zero I_Q (Disabled), <10nA
• Very Low I_Q (Enabled), 43µA
• Low Output Noise, 150µV_RMS
• PSRR, 55dB at 1kHz
• Fast Start Up, 105µs
PACKAGE
All available in Lead Free option.
• 4-Pin DSBGA, 1 mm x 1.3 mm
• 6-pin WQFN (SOT-23 Footprint)
• SOT-23
APPLICATIONS
• Cellular Handsets
• Hand-Held Information Appliances
DESCRIPTION
The LP3990 regulator is designed to meet the
requirements of portable, battery-powered systems
providing an accurate output voltage, low noise, and
low quiescent current. The LP3990 will provide a
0.8V output from the low input voltage of 2V at up to
150mA load current. When switched into shutdown
mode via a logic signal at the enable pin, the power
consumption is reduced to virtually zero.
The LP3990 is designed to be stable with space
saving ceramic capacitors as small as 1.0µF.
Performance is specified for a -40°C to 125°C
junction temperature range.
For output voltages other than 0.8V, 1.2, 1.35V, 1.5V,
1.8V, 2.5V, 2.8V, or 3.3V please contact your local
NSC sales office.
For other package options contact your Texas Instruments sales
office.
Typical Application Circuit
LP3990
V_IN
V_IN
6
1.0 PF
V_OUT
1
1.0 PF
V_OUT
V_EN
V_EN
5
GND
2
(WQFN pin connections shown)
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
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.
Copyright © 2004–2013, Texas Instruments Incorporated