LP5900_15 Datasheet, PDF (1/30 Pages) Texas Instruments – LP5900 Ultra Low-Noise, 150-mA Linear Regulator for RF/Analog Circuits - Requires No Bypass Capacitor

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LP5900
SNVS358Q – JULY 2005 – REVISED FEBRUARY 2015
LP5900 Ultra Low-Noise, 150-mA Linear Regulator for RF/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 a linear regulator capable of supplying
150-mA output current. Designed to meet the
requirements of RF/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; also available in an extremely
thin DSBGA (YPF) package. For all other package
options, contact your local Texas Instruments sales
office.
This device is available with 1.5-V, 1.575-V, 1.8-V,
1.9-V, 2-V, 2.1-V, 2.2-V, 2.3-V, 2.5-V, 2.6-V, 2.65-V,
2.7-V, 2.75-V 2.8-V, 2.85-V 3-V, 3.3-V and 4.5-V
outputs. Please contact your local sales office for any
other voltage options.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE
LP5900
DSBGA (4)
WSON (6)
1.108 mm x 1.083 mm (MAX)
2.50 mm x 2.20 mm (NOM)
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Schematic
INPUT
IN
0.47 2F
OUT
0.47 2F
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.