LP5904TMX-2.8SLASHNOPB.A中文资料德州仪器数据手册PDF规格书

1FEATURES

• 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.