LTC3252

4

3252f

1.2V Output Voltage vs Supply

Voltage

1.2V Efficiency vs Load Current

TYPICAL PERFOR A CE CHARACTERISTICS

FB1 (Pin 1): Feedback Input Pin 1. An output divider

should be connected from OUT1 to FB1 to program the

output voltage.

EN1 (Pin 2): Input Enable Pin 1. When EN1 is high, OUT1

is enabled. When EN1 is low OUT1 is shut down.

Oscillator Max/Min Frequency vs

Supply Voltage

2.7

0.8

1.0

1.2

1.4

1.6

2.0

3.2

3.7

4.2

4.7

3252 G07

5.2

1.8

0.9

1.1

1.3

1.5

1.9

1.7

–40

°C MAX

–40

°C MIN

25

°C MAX

25

°C MIN

85

°C MAX

85

°C MIN

2.7

1.30

1.28

1.26

1.24

1.22

1.20

1.18

1.16

1.14

1.12

1.10

3.2

3.7

4.2

4.7

3252 G08

5.2

0.1

100

80

60

40

20

0

3252 G09

1

10

100

1000

250mA

20mV/DIV

AC

3252 G11

20mA

4.5V

10mV/DIV

AC

3252 G12

3.5V

Output Current Transient

Response

Line Transient Response

OUT1 (Pin 5): Regulated Output Voltage 1. OUT1 is

Output Capacitor Selection section for size requirements.

GND (Pin 7): Ground. Connect to a ground plane for best

performance.

PI FU CTIO S