AS1364-BTDT-33-1k ams, AS1364-BTDT-33-1k Datasheet - Page 2

• Manufacturer Part Number: AS1364-BTDT-33-1k
• Description: Low Dropout Controllers - LDO
• Manufacturer: ams

Specifications of AS1364-BTDT-33-1k

• Rohs: yes
• Input Voltage Max: 5.5 V
• Output Voltage: 3.3 V
• Output Current: 1 A
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TDFN-8
• Input Voltage Min: 2 V
• Minimum Operating Temperature: - 40 C

AS1364
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
4.1 Pin Descriptions
Table 2. Pin Descriptions
www.austriamicrosystems.com
Exposed pad
Pin Number
3, 4
5, 6
1
2
7
8
Connect to
Pin Name
SET/BYP
Substrate
POK
OUT
GND
EN
IN
Note: Open-Drain POK Output. POK remains low while V
Connect a 100k pull-up resistor from this pin to OUT to obtain an output voltage
Active-Low Shutdown Input. A logic low disables the output and reduces the supply current to
0.1µA. In shutdown, the POK output is low and OUT high impedance.
V
GND: Shutdown.
2.0V to 5.5V Supply Voltage. Bypass with a 4.7µF input capacitor to GND
page
operation.
Regulator Output. Bypass with a 4.7µF low-ESR output capacitor to GND. Connect the OUT pins
together externally.
Voltage-Setting Input. Connect to GND to select the factory-preset output voltage. Connect this pin to
an external resistor-divider for adjustable-output operation
Bypass Pin. Connect a 10nF capacitor from this pin to OUT to improve PSRR and noise performance.
(AS1364-AD does not offer this feature)
Ground
Connect to PCB metal area for heatsink purposes. May be left open or connected to common ground.
DD
: Normal operation.
11). These inputs are internally connected, but they also must be externally connected for proper
POK
EN
IN
IN
1
2
3
4
AS1364
Revision 1.8
8 GND
7 SET/BYP
6 OUT
5 OUT
Description
(see Figure 1)
OUT
is below the POK threshold.
– (AS1364-AD only)
(see Dropout Voltage on
(see Figure
1).
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