TLV772 300mA, Small-Size, High-PSRR, Adjustable, Low-Dropout Regulator

1 Features

High PSRR: 55dB (1MHz)
V_IN range: 1.4V to 5.5V
Adjustable output voltage range: 0.6V to 3.3V
Output voltage accuracy: 2%
Low dropout voltage:
- 225mV at 300mA (3.3V_OUT)
Foldback current limit with thermal shutdown
Active output pulldown resistor
Packages:
- 5-pin X2SON (DQN)
- 5-pin SOT-23 (DBV, preview)

2 Applications

3 Description

The TLV772 is a small, adjustable, low-dropout (LDO) linear regulator that sources 300mA of output current. This LDO provides a voltage source with high PSRR and load and line transient performance that meets the requirements of a variety of circuits. With a 1.4V to 5.5V input voltage range and a 0.6V to 3.3V output voltage range, the TLV772 is flexible enough to be used in multiple applications.

The TLV772 features an internal soft-start circuit to avoid excessive inrush current, thus minimizing the input voltage drop during start-up. An active pulldown circuit quickly discharges the output when the LDO is disabled and provides a known start-up state. The EN input allows an external logic signal to enable or disable the regulated output. The LDO is stable with small ceramic capacitors, allowing for a small overall package size. The operating junction temperature range is from −40°C to +125°C. This LDO is available in standard X2SON (DQN) 1mm × 1mm and SOT-23 (DBV) packages.

Package Information

PART NUMBER	PACKAGE⁽¹⁾	PACKAGE SIZE⁽²⁾
TLV772	DBV (SOT-23, 5)⁽³⁾	2.9mm × 2.8mm
TLV772	DQN (X2SON, 5)	1mm × 1mm

(1) For more information, see the Mechanical, Packaging, and Orderable Information.

(2) The package size (length × width) is a nominal value and includes pins, where applicable.

(3) Preview information (not Production Data).

Typical Application Circuit

4 Pin Configuration and Functions

TLV772 DQN Package,1mm × 1mm, 5-Pin X2SON(Top
View)

Figure 4-1 DQN Package,1mm × 1mm, 5-Pin X2SON(Top View)

TLV772 DBV Package (Preview),5-Pin SOT-23(Top View)

Figure 4-2 DBV Package (Preview),5-Pin SOT-23(Top View)

Table 4-1 Pin Functions

PIN			TYPE⁽¹⁾	DESCRIPTION
NAME	X2SON	SOT-23	TYPE⁽¹⁾	DESCRIPTION
EN	3	3	I	Enable input. A low voltage (< V_EN(LOW)) on this pin turns the regulator off and discharges the output pin to GND. A high voltage (> V_EN(HI)) on this pin enables the regulator output.
FB	2	4	I	Feedback pin. Input to the control-loop error amplifier. This pin sets the output voltage of the device with external resistors.
GND	5	2	G	Ground pin.
IN	4	1	I	Input voltage supply. For best transient response and to minimize input impedance, use the nominal value or larger capacitor from IN to ground. See the Recommended Operating Conditions table. Place the input capacitor as close to the IN and GND pins of the device as possible.
OUT	1	5	O	Regulated output voltage. A low equivalent series resistance (ESR) capacitor is required from OUT to ground for stability. For best transient response, use the nominal recommended value or larger capacitor listed in the Recommended Operating Conditions table. Place the output capacitor as close to the OUT and GND pins of the device as possible. An internal pulldown resistor prevents a charge from remaining on V_OUT when the regulator is in shutdown mode (V_EN< V_EN(LOW)).

(1) I = input, O = output, I/O = input or output, and G = ground.