AS1334-BTDT-15 Ver la hoja de datos (PDF) - austriamicrosystems AG

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AS1334-BTDT-15

650mA, Ultra low Ripple Step Down DC/DC Converter

austriamicrosystems AG 

AS1334

Datasheet - Pin Assignments

4 Pin Assignments

Figure 2. Pin Configuration

lid FB 1

POK 2

a EN 3

v VDD 4

8 PGND

AS1334

SGND 9

7 SW

6 PVIN

5 SGND

s AGent still 4.1 PinDescriptions

m t Table 1. Pin Descriptions

Pin Number

a n 1

Pin Name

FB

o 2

POK

c 3

EN

l 4

VDD

5, 9

SGND

a 6

PVIN

ic 7

SW

Techn 8

PGND

Description

Feedback Pin. Connect to the output at the output filter capacitor.

Power-OK.

0 = VOUT < 90% of VOUTNOM.

1 = VOUT > 90% of VOUTNOM.

Enable Input. Set this digital input high for normal operation. For shutdown, set low.

+2.7V to +5.5V Power Supply Voltage. Analog Supply Input.

Analog and Control Ground. Connect these pins with low resistance to PGND.

+2.7V to +5.5V Power Supply Voltage. Input to the internal PFET switch.

Switch Pin. Switch node connection to the internal PFET switch and NFET synchronous rectifier.

Connect to an inductor with a saturation current rating that exceeds the maximum switch peak

current limit specification of the AS1334.

Power Ground. Connect this pin with low resistance to SGND.

www.austriamicrosystems.com/DC-DC_Step-Down/AS1334

Revision 1.09

2 - 18

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