AS1334
Datasheet - Pin Assignments
4 Pin Assignments
Figure 2. Pin Configuration
FB
POK
EN
1
2
3
4
8
7
6
5
PGND
SW
AS1334
PVIN
SGND
SGND
9
VDD
Pin Descriptions
Table 1. Pin Descriptions
Pin Name
Pin Number
Description
1
Feedback Pin. Connect to the output at the output filter capacitor.
FB
Power-OK.
2
0 = VOUT < 90% of VOUTNOM.
POK
1 = VOUT > 90% of VOUTNOM.
Enable Input. Set this digital input high for normal operation. For shutdown,
set low.
3
EN
+2.7V to +5.5V Power Supply Voltage. Analog Supply Input.
4
5, 9
6
VDD
SGND
PVIN
Analog and Control Ground.
+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.
SW
7
8
Power Ground.
PGND
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