6 Pin Configuration and Functions

VIN

1

2

3

4

8

7

6

5

EN

MODE

PG

FB

GND

SW

VOUT

Figure 6-1. DRL Package 8-Pin SOT583 Top View

Table 6-1. Pin Functions

PIN

I/O

DESCRIPTION

NO.

NAME

1

VIN

I

IC power supply input

2

EN

I

Enable logic input. Logic high voltage enables the device. Logic low voltage disables the

device and turns it into shutdown mode.

3

MODE

I

Operation mode selection in the light load condition. When it is connected to logic high

voltage, the device works in forced PWM mode. When it is connected to logic low voltage,

the device works in auto PFM mode.

4

PG

O

Power good indicator and open drain output

5

FB

I

Voltage feedback of adjustable output voltage, when FB connect to VIN, output voltage is

fixed 5.0V

6

GND

PWR

Ground pin of the IC

7

SW

PWR

The switch pin of the converter. It is connected to the drain of the internal low-side power

MOSFET and the source of the internal high-side power MOSFET.

8

VOUT

PWR

Boost converter output

TPS61033

SLVSGI6 – OCTOBER 2022

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