TPS70145中文资料德州仪器数据手册PDF规格书

DESCRIPTION

TPS701xx family devices are designed to provide a

complete power management solution for the

TMS320™ DSP family, processor power, ASIC,

FPGA, and digital applications where dual output

voltage regulators are required. Easy programmability

of the sequencing function makes the TPS701xx

family ideal for any TMS320 DSP applications with

power sequencing requirements. Differentiated

features, such as accuracy, fast transient response,

SVS supervisory circuit, manual reset inputs, and an

enable function, provide a complete system solution.

The TPS701xx family of voltage regulators offer very

low dropout voltage and dual outputs with power-up sequence control, which is designed primarily for

DSP applications. These devices have extremely low

noise output performance without using any added

filter bypass capacitors and are designed to have a

fast transient response and be stable with 10mF low

ESR capacitors.

These devices have fixed 3.3V/2.5V, 3.3V/1.8V,

3.3V/1.5V, 3.3V/1.2V, and adjustable/adjustable

voltage options. Regulator 1 can support up to

500mA, and regulator 2 can support up to 250mA.

Separate voltage inputs allow the designer to

configure the source power.

FEATURES

• Dual Output Voltages for Split-Supply

Applications

• Selectable Power-Up Sequencing for DSP

Applications

• Output Current Range of 500mA on Regulator

1 and 250mA on Regulator 2

• Fast Transient Response

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

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

Outputs

• Open Drain Power-On Reset with 120ms Delay

• Open Drain Power Good for Regulator 1

• Ultra Low 190mA (typ) Quiescent Current

• 1mA Input Current During Standby

• Low Noise: 65mV RMS Without Bypass Capacitor

• Quick Output Capacitor Discharge Feature

• Two Manual Reset Inputs

• 2 Accuracy Over Load and Temperature

• Undervoltage Lockout (UVLO) Feature

• 20-Pin PowerPAD™ TSSOP Package

• Thermal Shutdown Protection