LP5904_15 Datasheet, PDF (1/23 Pages) Texas Instruments – Ultra Low Noise, 200 mA Linear Regulator for RF/Analog Circuits - Requires No Bypass Capacitor

LP5904
www.ti.com
SNVS637G – MARCH 2011 – REVISED APRIL 2013
Ultra Low Noise, 200 mA Linear Regulator for RF/Analog
Circuits - Requires No Bypass Capacitor
Check for Samples: LP5904
FEATURES
1
• Stable with 1.0 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 … 2.2V to 5.5V
• Output Voltage Range … 1.2V to 4.4V
• Output Current … 200 mA
• Low Output Voltage Noise at
200 mA … 6.5µVRMS
• PSRR … 78 dB at 1kHz
• Output Voltage Tolerance … ± 2%
• Virtually Zero IQ (Disabled) … <1 µA
• Very Low IQ (Enabled) … 11 µA
• Startup Time … 85 µs
• Low Dropout … 95 mV typ
PACKAGE
• 4-Bump DSBGA (lead free)
0.815 mm × 0.815 mm × 0.600 mm
DESCRIPTION
The LP5904 is a linear regulator capable of supplying
200 mA output current. Designed to meet the
requirements of RF/ Analog circuits, the LP5904
device provides low noise, high PSRR, low quiescent
current, and low line transient response figures. Using
new innovative design techniques the LP5904 offers
class-leading device noise performance without a
noise bypass capacitor and the ability for remote
output capacitor placement. An active pulldown circuit
with a 280Ω resistor is wired from the output to
ground pins to quickly discharge output when the
device is disabled (VEN = low).
The device is designed to work with a 1.0 µF input
and a 1.0 µF output ceramic capacitor. (No Bypass
Capacitor is required.)
The device is available in a DSBGA package. For
other package options contact your local TI sales
office.
This device is available between 1.2V and 4.4V in
25 mV steps. Please contact Texas Instruments
Sales for specific voltage option needs.
TYPICAL APPLICATION CIRCUIT
INPUT
V_IN
1.0 PF
V_OUT
1 PF
LP5904
ENABLE
GND
V_EN
GND
OUTPUT
SVA-30110401
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 © 2011–2013, Texas Instruments Incorporated