TPS79928DDCR中文资料德州仪器数据手册PDF规格书

1 Features

• 200-mA low-dropout regulator with EN

• Multiple output voltage versions available:

– Fixed outputs of 1.2 V to 4.5 V

– Adjustable outputs from 1.20 V to 6.5 V

• Inrush current protection with EN toggle

• Low IQ: 40 μA

• High PSRR:

– 66 dB at 1 kHz

– 51 dB at 10 kHz

• Stable with a low-ESR, 2-μF typical output

capacitance

• Excellent load and line transient response

• 2% overall accuracy (load, line, and temperature)

• Very low dropout: 100 mV

• Packages:

– 5-bump, thin, 0.97-mm × 1.34-mm DSBGA

– 5-pin SOT-23-THIN

– 6-pin WSON

2 Applications

• Base stations

• Smart phones

• EPOS

• Wearable electronics

• VCOs, RF

• Wireless LAN, Bluetooth®

3 Description

The TPS799 low-dropout (LDO), low-power linear

regulator offers excellent ac performance with very

low ground current. High power-supply rejection ratio

(PSRR), low noise, fast start-up, and excellent line

and load transient response are provided while

consuming a very low 40-μA (typical) ground current.

The TPS799 is stable with ceramic capacitors and

uses an advanced BiCMOS fabrication process to

yield a dropout voltage of typically 100 mV at a 200-

mA output. The TPS799 uses a precision voltage

reference and feedback loop to achieve an overall

accuracy of 2% over all load, line, process, and

temperature variations. The TPS799 features inrush

current protection when the EN toggle is used to start

the device, immediately clamping the current.

This device is fully specified over the temperature

range of TJ = –40°C to +125°C, and is offered

in a low-profile, die-sized ball grid array (DSBGA)

package, making this device a good choice for

wireless handsets and WLAN cards. This device is

also offered in 5-pin SOT-23-THIN and 6-pin WSON

packages.