AP1512/A

50KHz, 2A/3A PWM Buck DC/DC Converter

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Oct. 14, 2005

5/12

Typical Performance Characteristics (Continued)

AP1512 Efficiency v.s. Temperature

(Vin=12V,Vout=5V,Io=2A)

0

10

20

30

40

50

60

70

80

90

100

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (TA) (°C)

AP1512 Efficiency v.s. Temperature

(Vin=12V,Vout=3.3V,Io=2A)

0

10

20

30

40

50

60

70

80

90

100

-50 -30 -10 10 30 50 70 90 110 130 150

Temperature (TA) (°C)

AP1512 Supply Current v.s. Temperature

(Vcc=12V , No Load ,Von/off =0V(Switch ON) ,Von/off =5V(Switch OFF))

0

1

2

3

4

5

6

7

8

-40 -25 -10 5

20 35 50 65 80 95 110 125

Temperature (TA) (°C)

Switch ON

0

10

20

30

40

50

60

70

80

90

100

-40 -25 -10 5

20 35 50 65 80 95 110 125

Temperature (TA) (°C)

Switch OFF

AP1512 Output Voltage v.s. Temperature

(Vin=12V, Vout=5V, Io=1A)

4.70

4.75

4.80

4.85

4.90

4.95

5.00

5.05

5.10

-50

0

50

100

150

Temperature (TA) (°C)

AP1512 Threshold Voltage v.s. Temperature

(Vcc=12V, Vout=5V)

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

-50

0

50

100

150

Temperature (TA) (°C)