AS1339 datasheet(14/25 Pages) AMSCO

tên linh kiện	AS1339

Giải thích chi tiết về linh kiện	650mA RF Step-Down DC-DC for PA, with two LDOs

PDF	25 Pages

Scroll/Zoom	100%

nhà sản xuất	AMSCO [ams AG]

Trang chủ	http://www.ams.com

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Revision 1.04

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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 39. DC-DC Line Transient; VIN = 4.0V to 3.5V,

VOUT = 1.2V, RLOAD = 10

Figure 40. DC-DC Load Transient; IOUT = 0mA to

500mA, VIN = 3.6V, VOUT = 2.5V

50µs/Div

Figure 41. LDO Quiescent Current vs. VIN

Figure 42. LDO Line Regulation, VOUT vs. VIN

Input Voltage (V)

both LDO's

one LDO

2.7

2.72

2.74

2.76

2.78

2.8

2.82

2.84

2.86

2.88

2.9

2.7 3.05 3.4 3.75 4.1 4.45 4.8 5.15 5.5

Input Voltage (V)

Iout = 0mA

Iout = 1mA

Iout = 10mA

Iout = 20mA

Figure 43. LDO PSRR vs. Freq.; VIN = 3.2V, VOUT =

2.85V, VRIPPLE = 200mVPP, COUT =100nF

Figure 44. LDO Output Noise vs. Freq.; VIN = 3.2V,

VOUT = 2.85V, COUT =100nF

-80

-70

-60

-50

-40

-30

-20

-10

100

1000

10000

100000

Frequency (Hz)

4mA

no Load

0.01

0.1

100

1000

10000

100000

Frequency (Hz)

10mA

no Load

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