LTC4063 查看數據表（PDF） - Linear Technology

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LTC4063

Standalone Linear Li-Ion Charger with Micropower Low Dropout Linear Regulator

Linear Technology 

LTC4063

TYPICAL PERFORMANCE CHARACTERISTICS

LDO Regulator Dropout Voltage

vs Temperature

200

VOUT = 3V

IOUT = 100mA

150

100

50

LDO Regulator Quiescent Current

vs Temperature

25

20

VBAT = 4.2V

15

VBAT = 2.65V

10

5

LDO Regulator Output Noise

Spectral Density

10

1

0.1

0

–50 –25 0

25 50

TEMPERATURE (°C)

75 100

4063 G19

0

–50 –25 0 25 50 75 100

TEMPERATURE (°C)

4060 G20

0.01

10

100

1k

10k

FREQUENCY (Hz)

100k

4063 G24

LDO Regulator Dropout Voltage

vs Load Current

180

VOUT = 3V

150

TA = 115°C

120

TA = 90°C

90

60

TA = 25°C

TA = –40°C

30

LDOEN Pin Threshold (On-to-Off)

vs Temperature

900

VBAT = 4V

850

800

750

700

650

LDOEN Pin Pull-Down Resistance

vs Temperature

3.0

2.8

2.6

2.4

2.2

2.0

1.8

0

0 20 40 60 80 100 120

LOAD CURRENT (mA)

4063 G26

600

–50 –25

0 25 50 75

TEMPERATURE (°C)

100 125

4063 G22

1.6

–50 –25

0 25 50

TEMPERATURE (°C)

75 100

4063 G23

LDO Regulator 10Hz to 100kHz

Output Noise

LDO Regulator Transient Response

VOUT

500µV/

DIV

COUT = 2.2µF 10ms/DIV

ILOAD = 100mA

VOUT = 3V

135µVRMS

4063 G21

OUTPUT

VOLTAGE

DEVIATION

50mV/DIV

LOAD

CURRENT

50mA/DIV

COUT = 2.2µF

VOUT = 1.2V

50µs/DIV

4063 G28

4063fb

6

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