LM340, A Series

7

MOTOROLA ANALOG IC DEVICE DATA

LM340–12

Characteristics

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ = +25°C)

IO = 5.0 mA to 1.0 A

VO

11.5

12

12.5

Vdc

Line Regulation (Note 2)

15 Vdc to 27 Vdc

14.6 Vdc to 30 Vdc (TJ = +25°C)

16 Vdc to 22 Vdc, IO = 1.0 A

14.6 Vdc to 27 Vdc, IO = 1.0 A (TJ = +25°C)

Regline

–

–

–

–

–

–

–

–

120

120

60

120

mV

Load Regulation (Note 2)

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)

Regload

–

–

–

–

–

–

120

120

60

mV

Output Voltage

14.5

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

VO

11.4

–

12.6

Vdc

Quiescent Current

IO = 1.0 A

TJ = +25°C

IB

–

–

–

4.0

8.5

8.0

mA

Quiescent Current Change

14.5

≤ Vin ≤ 30 Vdc, IO = 500 mA

5.0 mA

≤ IO ≤ 1.0 A, Vin = 19 V

14.8

≤ Vin ≤ 27 Vdc, IO = 1.0 A

∆IB

–

–

–

–

–

–

1.0

0.5

1.0

mA

Ripple Rejection

IO = 1.0 A (TJ = +25°C)

RR

55

72

–

dB

Dropout Voltage

VI – VO

–

1.7

–

Vdc

Output Resistance (f = 1.0 kHz)

rO

–

2.0

–

m

Ω

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

ISC

–

1.1

–

A

Output Noise Voltage (TA = +25°C)

10 Hz

≤ f ≤ 100 kHz

Vn

–

75

–

µV

Average Temperature Coefficient of Output Voltage

IO = 5.0 mA

TCVO

–

±1.5

–

mV/

°C

Peak Output Current (TJ = +25°C)

IO

–

2.4

–

A

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

IO = 1.0 A

14.6

–

–

Vdc

NOTES: 1. Tlow to Thigh = 0° to +125°C

2. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately.

Pulse testing with low duty cycle is used.