L4903 查看數據表（PDF） - STMicroelectronics

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L4903

DUAL 5V REGULATOR WITH RESET AND DISABLE FUNCTIONS

STMicroelectronics 

L4903

ABSOLUTE MAXIMUM RATINGS

Symbol

VIN

Vt

Ptot

Tstg, Tj

Parameter

DC Input Voltage

Transient Input Overvoltage (t = 40ms)

Power Dissipation at Tamb = 50°C

Storage and Junction Temperature

Value

Unit

24

V

60

V

1

W

– 40 to 150

°C

THERMAL DATA

Symbol

Rth (j-pin)

Rth (j-a)

Parameter

Thermal Resistance Junction-pin 4

Thermal Resistance Junction-ambient

Max.

Max.

Value

70

100

Unit

°C/W

°C/W

ELECTRICAL CHARACTERISTICS (VIN = 14.4V, Tamb = 25oC unless otherwise specified)

Symbol

Vi

V01

V02 H

V02 L

I01

IL01

I02

VI01

VIT

VIT H

∆V01

∆V02

∆V01

∆V02

IQ

IQ1

VRT

VRTH

VRH

VRL

tRD

td

VDT

ID

∆∆VT01,

∆V02

∆T

SVR1

SVR2

TJSD

Parameter

DC Operating Input Voltage

Output Voltage 1

Output Voltage 2 HIGH

Output Voltage 2 LOW

Output Current 1 max. (*)

Leakage Output 1 Current

Output Current 2 max. (*)

Output 1 Dropout Voltage (*)

Input Threshold Voltage

Input Threshold Voltage Hyst.

Line Regulation 1

Line Regulation 2

Load Regulation 1

Load Regulation 2

Quiescent Current

Quiescent Current 1

Reset Threshold Voltage

Reset Threshold Hysteresis

Reset Output Voltage HIGH

Reset Output Voltage LOW

Reset Pulse Delay

Timing Capacitor Discharge

Time

V02 Disable Threshold Voltage

V02 Disable Input Current

Thermal Drift

Supply Voltage Rejection

Supply Voltage Rejection

Thermal Shut Down

Test Conditions

R Load 1kΩ

R Load 1kΩ

I02 = – 5mA

∆V01 = – 100mV

VIN = 0, V01 ≤ 3V

∆V02 = – 100mV

I01 = 10mA

I01 = 50mA

7V < VIN < 18V, I01 = 5mA

7V < VIN < 18V, I02 = 5mA

VIN1 = 8V, 5mA < I01 < 50mA

VIN1 = 8V, 5mA < I02 < 100mA

I01 = I02 ≤ 5mA

0 < VIN < 13V

7V < VIN < 13V V02 LOW

7V < VIN < 13V V02 HIGH

6.3V < VIN1 < 13V, VIN2 = 0

I01 ≤ 5mA, I02 = 0

IR = 500µA

IR = – 5mA

Ct = 10nF

Ct = 10nF

VD ≤ 0.4V

VD ≥ 2.4V

– 20°C ≤ Tamb ≤ 125°C

f = 100Hz, VR = 0.5V, Io = 50mA

f = 100Hz, VR = 0.5V, Io =

100mA

Min.

4.95

V01 –0.1

50

100

V01 + 1.2

V02 – 0.04

30

V02 – 1

3

50

50

Typ.

5.05

5

0.1

0.7

0.75

6.4

250

5

5

5

10

4.5

2.7

1.6

0.6

4.7

50

4.12

0.25

5

1.25

- 150

30

0.3

- 0.8

84

80

150

Max.

20

5.15

V01

1

0.8

0.9

V01 + 1.7

50

50

20

50

6.5

4.5

3.5

0.9

V02 – 0.02

80

V02

0.4

11

20

2.4

Unit

V

V

V

V

mA

µA

mA

V

V

V

mV

mV

mV

mV

mV

mA

mA

V

mV

V

V

ms

µs

V

µA

µA

mV/°C

dB

dB

°C

* The dropout voltage is defined as the difference between the input and the output voltage when the output voltage is lowered of 25 mV under

constant output current condition.

3/8

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