TPS7A1601-Q1

OUT

GND

C

IN

IN

EN

V

IN

V

OUT

V

EN

DELAY

PG

C

OUT

FB

V

PG

R

PG

C

FF

R

1

R

2

C

DELAY

V

OUT

V

REF

-

1

R = R

1

2

Where:

11

TPS7A1601-Q1, TPS7A1633-Q1, TPS7A1650-Q1

www.ti.com

SBVS188D – MARCH 2012 – REVISED MAY 2016

Product Folder Links: TPS7A1601-Q1 TPS7A1633-Q1 TPS7A1650-Q1

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Copyright © 2012–2016, Texas Instruments Incorporated

8 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

8.1 Application Information

The TPS7A16xx-Q1 family of ultralow-power voltage regulators offers the benefit of ultralow quiescent current,

high input voltage, and miniaturized, high-thermal-performance packaging.

The TPS7A16xx-Q1 are designed for continuous or sporadic (power backup) battery-operated applications where

ultralow quiescent current is critical to extending system battery life.

8.2 Typical Applications

8.2.1 TPS7A1601-Q1 Circuit as an Adjustable Regulator

Figure 14. TPS7A1601-Q1 Circuit as an Adjustable Regulator Schematic

8.2.1.1 Design Requirements

Table 1. Design Parameters

DESIGN PARAMETER

EXAMPLE VALUE

Input voltage range

5.5 V to 40 V

Output voltage

5 V

Output current rating

100 mA

Output capacitor range

2.2

μF to 100 μF

Delay capacitor range

100 pF to 100 nF

8.2.1.2 Detailed Design Procedure

8.2.1.2.1

Adjustable Voltage Operation

The TPS7A1601-Q1 has an output voltage range from 1.194 V to 20 V. The nominal output of the device is set

by two external resistors, as shown in Figure 15: