LP5900 Datasheet, PDF (1/30 Pages) National Semiconductor (TI) – Ultra Low Noise, 100 mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor

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LP5900
SNVS358R – JULY 2005 – REVISED JUNE 2016
LP5900 150-mA Ultra-Low-Noise LDO for RF and Analog Circuits -
Requires No Bypass Capacitor
1 Features
•1 Input Voltage Range, 2.5 V to 5.5 V
• Output Voltage Range, 1.5 V to 4.5 V
• Stable with 0.47-μF Ceramic Input and Output
Capacitors
• No Noise Bypass Capacitor Required
• Logic Controlled Enable
• Thermal-Overload and Short-Circuit Protection
• −40°C to 125°C Junction Temperature Range for
Operation
• Output Current, 150 mA
• Low Output Voltage Noise, 6.5 μV_RMS
• PSRR, 75 dB at 1 kHz
• Output Voltage Tolerance, ±2%
• Virturally Zero I_Q (Disabled), < 1 µA
• Very Low I_Q (Enabled), 25 μA
• Start-up Time, 150 μs
• Low Dropout, 80 mV Typ.
2 Applications
• Cellular Phones
• PDA Handsets
• Wireless LAN Devices
3 Description
The LP5900 is an LDO capable of supplying 150-mA
output current. Designed to meet the requirements of
RF and analog circuits, the LP5900 device provides
low noise, high PSRR, low quiescent current, and low
line transient response figures. Using new innovative
design techniques the LP5900 offers class-leading
device noise performance without a noise bypass
capacitor.
The device is designed to work with 0.47-μF input
and output ceramic capacitors (no bypass capacitor
required).
The device is available in a DSBGA (YZR) package
and a WSON package; the device is also available in
an extremely thin DSBGA (YPF) package. For all
voltage and package options available today, see the
Package Option Addendum (POA) at the end of this
data sheet. For any other fixed output voltages from
1.5 V to 4.5 V in 25-mV steps and all other package
options, contact your local TI Sales office.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE
LP5900
DSBGA (4)
WSON (6)
1.108 mm × 1.083 mm (MAX)
2.50 mm × 2.20 mm (NOM)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
INPUT
IN
0.47 PF
OUT
0.47 PF
LP5900
OUTPUT
ENABLE
GND
EN
GND
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.