PTLV75533PDYDR中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? Input voltage range: 1.45 V to 5.5 V

? Low IQ: 25 μA (typical)

? Low dropout:

– 238 mV (maximum) at 500 mA (3.3 VOUT)

? Output accuracy: 1% (maximum at 85°C)

? Built-in soft-start with monotonic VOUT rise

? Foldback current limit

? Active output discharge

? High PSRR: 46 dB at 100 kHz

? Stable with a 1-μF ceramic output capacitor

? Packages:

– 2.9-mm × 2.8-mm SOT-23-5

– 2.9-mm × 2.8-mm SOT-23-5 with thermal pad

(advance information only)

– 1-mm × 1-mm X2SON-4

– 2-mm × 2-mm WSON-6

2 Applications

? Set-top boxes, TV, and gaming consoles

? Portable and battery-powered equipment

? Desktops, notebooks, and ultrabooks

? Tablets and remote controls

? White goods and appliances

? Grid infrastructure and protection relays

? Camera modules and image sensors

TLV755P

IN

EN

OUT

GND

COUT

CIN

ON

OFF

Typical Application

Time (ms)

Voltage (V)

Output Current (mA)

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

0 0

1 25

2 50

3 75

4 100

5 125

6 150

7 175

VOUT VIN VEN IOUT

Start-Up Waveform

3 Description

The TLV755P is an ultra-small, low quiescent current,

low-dropout regulator (LDO) that sources 500 mA

with good line and load transient performance.

The TLV755P is optimized for a wide variety of

applications by supporting an input voltage range

from 1.45 V to 5.5 V. To minimize cost and solution

size, the device is offered in fixed output voltages

ranging from 0.6 V to 5 V to support the lower

core voltages of modern microcontrollers (MCUs).

Additionally, the TLV755P has a low IQ with enable

functionality to minimize standby power. This device

features an internal soft-start to lower inrush current,

thus providing a controlled voltage to the load and

minimizing the input voltage drop during start up.

When shutdown, the device actively pulls down the

output to quickly discharge the outputs and ensure a

known start-up state.

The TLV755P is stable with small ceramic output

capacitors allowing for a small overall solution size.

A precision band-gap and error amplifier provides

a typical accuracy of 1%. All device versions

have integrated thermal shutdown, current limit, and

undervoltage lockout (UVLO). The TLV755P has an

internal foldback current limit that helps reduce the

thermal dissipation during short-circuit events.

The TLV755 is available in the popular WSON,

X2SON, and SOT23-5 (DRV, DQN, and DBV)

packages. This device is also available in a

thermally enhanced SOT23-5 (DYD) package with

a thermal pad that provides significantly reduced

thermal resistance compared to a standard SOT23-5

package.