LM340AT 查看數據表（PDF） - Motorola => Freescale

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LM340AT

THREE–TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

Motorola => Freescale 

LM340, A Series

LM340–24

ELECTRICAL CHARACTERISTICS (Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)

Characteristics

Symbol Min

Typ

Max

Output Voltage (TJ = +25°C)

IO = 5.0 mA to 1.0 A

VO

23

24

25

Line Regulation

28 Vdc to 38 Vdc

27 Vdc to 38 Vdc (TJ = +25°C)

30 Vdc to 36 Vdc, IO = 1.0 A

27.1 Vdc to 38 Vdc, IO = 1.0 A (TJ = +25°C)

Load Regulation

5.0 mA ≤ IO ≤ 1.0 A

5.0 mA ≤ IO ≤ 1.5 A (TJ = +25°C)

250 mA ≤ IO ≤ 750 mA (TJ = +25°C)

Output Voltage

27 ≤ Vin ≤ 38 Vdc, 5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W

Regline

–

–

–

–

–

240

–

240

–

120

–

240

Regload

–

–

–

–

240

–

240

–

120

VO

22.8

–

25.2

Quiescent Current

IO = 1.0 A

TJ = +25°C

Quiescent Current Change

27 ≤ Vin ≤ 38 Vdc, IO = 500 mA

5.0 mA ≤ IO ≤ 1.0 A, Vin = 33 V

27.3 ≤ Vin ≤ 38 Vdc, IO = 1.0 A

Ripple Rejection

IO = 1.0 mA (TJ = +25°C)

IB

–

–

8.5

–

4.0

8.0

∆IB

–

–

1.0

–

–

0.5

–

–

1.0

RR

50

66

–

Dropout Voltage

Output Resistance (f = 1.0 kHz)

Short Circuit Current Limit (TJ = +25°C)

Output Noise Voltage (TA = +25°C)

10 Hz ≤ f ≤ 100 kHz

VI – VO

–

1.7

–

rO

–

2.0

–

ISC

–

200

–

Vn

–

170

–

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA

TCVO

–

±3.0

–

Peak Output Current (TJ = +25°C)

Input Voltage to Maintain Line Regulation (TJ = +25°C)

IO = 1.0 A

IO

–

2.4

–

27.1

–

–

NOTE: 1. Tlow to Thigh = 0° to +125°C

Unit

Vdc

mV

mV

Vdc

mA

mA

dB

Vdc

mΩ

A

µV

mV/°C

A

Vdc

12

MOTOROLA ANALOG IC DEVICE DATA

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