AS1339 datasheet(11/26 Pages) AMSCO

номер детали	AS1339

подробное описание детали	650mA RF Step-Down DC-DC for PA, with two LDOs

PDF	26 Pages

Scroll/Zoom	100%

производитель	AMSCO [ams AG]

домашняя страница	http://www.ams.com

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11 / 26 page

www.austriamicrosystems.com/DC-DC_Step-Down/AS1339

Revision 1.05

10 - 25

AS1339

Datasheet - Ty p i c a l O p e r a t i o n C h a r a c t e r i s t i c s

Figure 15. DC-DC Load Regulation, VOUT vs. IOUT;

VOUT = 1.8V

Figure 16. DC-DC Load Regulation, VOUT vs. IOUT;

VOUT = 2.2V

1.77

1.78

1.79

1.80

1.81

1.82

1.83

100

1000

Output Current (mA)

Vin = 2.7V

Vin = 3.0V

Vin = 3.3V

Vin = 3.6V

Vin = 3.9V

2.17

2.18

2.19

2.20

2.21

2.22

2.23

100

1000

Output Current (mA)

Vin = 2.7V

Vin = 3.0V

Vin = 3.3V

Vin = 3.6V

Vin = 3.9V

Figure 17. DC-DC Efficiency vs VIN; VOUT = 3.8V

Figure 18. DC-DC Efficiency vs VIN; VOUT = 3.4V

100

2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5

Input Voltage (V)

Iout = 300mA

Iout = 400mA

Iout = 500mA

Iout = 600mA

PWM

Mode

Bypass

Mode

100

2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5

Input Voltage (V)

Iout = 300mA

Iout = 400mA

Iout = 500mA

Iout = 600mA

PWM

Mode

Bypass

Mode

Figure 19. DC-DC Efficiency vs VIN; VOUT = 2.0V

Figure 20. DC-DC Efficiency vs VIN; VOUT = 1.5V

100

2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5

Input Voltage (V)

Iout = 300mA

Iout = 400mA

Iout = 500mA

Iout = 600mA

100

2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5

Input Voltage (V)

Iout = 300mA

Iout = 400mA

Iout = 500mA

Iout = 600mA

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