TPS70451PWP中文资料德州仪器数据手册PDF规格书

1FEATURES

23• Dual Output Voltages for Split-Supply

Applications

• Independent Enable Functions (See Part

Number TPS703xx for Sequenced Outputs)

• Output Current Range of 1 A on Regulator 1

and 2 A on Regulator 2

• Fast Transient Response

• Voltage Options: 3.3-V/2.5-V, 3.3-V/1.8-V,

3.3-V/1.5-V, 3.3-V/1.2-V, and Dual Adjustable

Outputs

• Open Drain Power-On Reset with 120-ms Delay

• Open Drain Power Good for Regulator 1 and

Regulator 2

• Ultralow 185mA (typ) Quiescent Current

• 2mA Input Current During Standby

• Low Noise: 78mVRMS Without Bypass Capacitor

• Quick Output Capacitor Discharge Feature

• One Manual Reset Input

• 2% Accuracy Over Load and Temperature

• Undervoltage Lockout (UVLO) Feature

• 24-Pin PowerPAD™ TSSOP Package

• Thermal Shutdown Protection

DESCRIPTION

The TPS704xx family of devices consists of

dual-output, low-dropout voltage regulators with

integrated SVS (RESET, POR, or power on reset)

and power good (PG) functions. These devices are

capable of supplying 1 A and 2 A by regulator 1 and

regulator 2 respectively. Quiescent current is typically

185 mA at full load. Differentiated features, such as

accuracy, fast transient response, SVS supervisory

circuit (power on reset), manual reset input, and

independent enable functions provide a complete

system solution.