Datasheet Texas Instruments TPS767D318PWPR — 数据表

TPS767D3xx
www.ti.com. SLVS209H – JULY 1999 – REVISED AUGUST 2008 DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
FEATURES 1 Dual Output Voltages for Split-Supply
Applications Output Current Range of 0mA to 1.0A per
Regulator 3.3V/2.5V, 3.3V/1.8V, and 3.3V/Adjustable
Output Fast-Transient Response 2% Tolerance Over Load and Temperature Dropout Voltage Typically 350mV at 1A Ultra-low 85ВµA Typical Quiescent Current 1ВµA Quiescent Current During Shutdown Dual Open-Drain Power-On Reset with 200ms
Delay for Each Regulator 28-Pin PowerPADв„ў TSSOP Package Thermal Shutdown Protection for Each
Regulator Because the PMOS device behaves as a low-value
resistor, the dropout voltage is very low (350mV
typically at an output current of 1A for the
TPS767D325) and is directly proportional to the
output current. Additionally, since the PMOS pass
element is a voltage-driven device, the quiescent
current is very low and independent of output loading
(typically 85ВµA over the full range of output current,
0mA to 1A). These two key specifications yield a
significant improvement in operating life for
battery-powered systems. This LDO family also
features a sleep mode; applying a TTL high signal to
EN (enable) shuts down the regulator, reducing the
quiescent current to 1ВµA at TJ = +25В°C. DESCRIPTION The TPS767D3xx is offered in 1.8V, 2.5V, and 3.3V
fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5V to 5.5V). …