RT9185 データシートの表示（PDF） - Richtek Technology

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RT9185

Triple, Ultra-Fast CMOS LDO Regulator

Richtek Technology 

Typical Operating Characteristics

Temperature Stability

4.2

3.8

VOUT1 = 3.35V

3.4

3

VOUT2 = 2.55V

2.6

2.2

VOUT3 = 1.8V/1.5V

1.8

1.4

-4305 -15 5 25 45 65 85 105 125

Temperature (°C)

Current Limit vs. Temperature

2.5

VDD = 5V

VOUT1

2

VOUT2

1.5

1

VOUT3

0.5

0

-3450 -15 5 25 45 65 85 105 125

Temperature (°C)

Dropout Valtage vs. Temperature

1

VDD = 5V

0.8

VOUT2 = 2.55V

0.6

VOUT1 = 3.35V

0.4

0.2

-3450 -15 5 25 45 65 85 105 125

Temperature (°C)

DS9185-11 March 2007

RT9185

Quiescient Current

600

500

VDD = 5V

400

300

VDD = 6V

VDD = 4V

200

--4305 -15

5 25 45 65 85 105 125

Temperature (°C)

PSRR

-10

VDD = 5V

-20 C1 = 2.2uF, C2 = 4.7uF

C3 = 4.7uF, C4 = 1uF

-30 IO1, IO2, IO3 = 10mA

TA = 25°C

-40

-50

-60 VOUT2

VOUT3

-70 VOUT1

-80

10

100

1010K0 10100K0 110000K0 10010M000

Frequency (Hz)

Short Thermal Shutdown

VDD = 5V

C1 = 2.2uF

TA = 25°C

Time (25ms/Div)

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