LP5907_1212 Datasheet, PDF (1/21 Pages) Texas Instruments – ULTRA LOW NOISE, 250-mA LINEAR REGULATOR FOR RF AND ANALOG CIRCUITS

LP5907
www.ti.com
SNVS798D – APRIL 2012 – REVISED NOVEMBER 2012
ULTRA LOW NOISE, 250-mA LINEAR REGULATOR FOR RF AND ANALOG CIRCUITS -
REQUIRES NO BYPASS CAPACITOR
Check for Samples: LP5907
FEATURES
1
• Stable with 1-µF Ceramic Input and Output
Capacitors
• No Noise Bypass Capacitor Required
• Remote Output Capacitor Placement
• Thermal-overload and Short-circuit Protection
• –40°C to +125°C Junction Temperature Range
for Operation
APPLICATIONS
• Cellular Phones
• PDA Handsets
• Wireless LAN Devices
KEY SPECIFICATIONS
• Input Voltage Range: 2.2 V to 5.5 V
• Output Voltage Range: 1.2 V to 4.5 V
• Output Current: 250 mA
• Low Output Voltage Noise: <10 µV_RMS
• PSRR: 82 dB at 1 kHz
• Output Voltage Tolerance: ±2%
• Virtually Zero IQ (Disabled): <1 µA
• Very Low IQ (Enabled): 12 µA
• Startup Time: 80 µs
• Low Dropout: 120 mV Typical
PACKAGE
• 4-Bump Ultra-Thin Micro SMD (Lead Free):
0.35-mm Pitch, 0.65 mm × 0.65 mm × 0.40 mm
• 5-Pin SOT23 (Lead Free):
2.92 mm x 1.6 mm x 1 mm
xxx
xxx
Typical Application Circuit
INPUT
VIN
1.0 PF
VOUT
1.0 PF
LP5907
OUTPUT
ENABLE
GND
VEN
GND
SVA-30180501
DESCRIPTION
The LP5907 is a linear regulator capable of supplying 250-mA output current. Designed to meet the requirements
of RF and analog circuits, the LP5907 device provides low noise, high PSRR, low quiescent current, and low line
or load transient response figures. Using new innovative design techniques, the LP5907 offers class-leading
noise performance without a noise bypass capacitor and the ability for remote output capacitor placement.
The device is designed to work with a 1-µF input and a 1-µF output ceramic capacitor (no bypass capacitor is
required).
The device is available in an ultra-thin micro SMD package as well as a 5-pin SOT23 package. This device is
available between 1.2 V and 4.5 V in 25-mV steps. Please contact Texas Instruments Sales for specific voltage
option needs.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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 © 2012, Texas Instruments Incorporated