KF52B 查看數據表（PDF） - STMicroelectronics

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KF52B

Very low drop voltage regulators with inhibit

STMicroelectronics 

KFxxB

Electrical characteristics

Table 5.

Symbol

Electrical characteristics for KF25 (refer to the test circuits, TJ = 25 °C, CI = 0.1 µF,

CO = 2.2 µF unless otherwise specified.)

Parameter

Test conditions

Min. Typ. Max. Unit

VO Output voltage

IO = 50 mA, VI = 4.5 V

2.45 2.5 2.55

V

IO = 50 mA, VI = 4.5 V, Ta = -25 to 85°C 2.4

2.6

VI Operating input voltage IO = 500 mA

20

V

IO Output current limit

1

A

ΔVO Line regulation

VI = 3.5 to 20 V, IO = 5 mA

2

12 mV

ΔVO Load regulation

VI = 3.8 V, IO = 5 to 500 mA

2

50 mV

Id Quiescent current

VI = 3.5 to 20V, IO = 0mA

ON MODE

VI = 3.8 to 20V, IO=500mA

0.5

1

mA

12

VI = 6 V

OFF MODE

50 100 µA

f = 120 Hz

82

SVR Supply voltage rejection IO = 5 mA, VI = 4.5 ± 1 V f = 1 kHz

77

dB

f = 10 kHz

60

eN Output noise voltage

B = 10 Hz to 100 KHz

50

µV

Vd Dropout voltage

VIL Control input logic low

VIH Control input logic high

II Control input current

CO

Output bypass

capacitance

IO = 200 mA

IO = 500 mA

Ta = -40 to 125°C

Ta = -40 to 125°C

VI = 6 V, VC = 6 V

ESR = 0.1 to 10 Ω, IO = 0 to 500 mA

0.2 0.35

V

0.4 0.7

0.8

V

2

V

10

µA

2

10

µF

7/22

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