LM317M datasheet(3/16 Pages) ONSEMI

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LM317M

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ELECTRICAL CHARACTERISTICS (VI − VO = 5.0 V; IO = 0.1 A, TJ = Tlow to Thigh (Note 2), unless otherwise noted.)

LM317M / LM317MB

Characteristics

Figure

Symbol

Min

Typ

Max

Unit

Line Regulation (Note 3) (TA = 25°C, 3.0 V ≤ VI − VO ≤ 40 V)

Regline

−

0.01

0.04

%/V

Load Regulation (Note 3)

TA = 25°C, 10 mA ≤ IO ≤ 0.5 A

VO ≤ 5.0 V

VO ≥ 5.0 V

Regload

−

5.0

0.1

0.5

% VO

Adjustment Pin Current

IAdj

−

100

Adjustment Pin Current Change

2.5 V

≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax

3, 4

DIAdj

−

0.2

5.0

Reference Voltage

3.0 V

≤ VI − VO ≤ 40 V, 10 mA ≤ IL ≤ 0.5 A, PD ≤ Pmax

Vref

1.200

1.250

1.300

Line Regulation (Note 3)

3.0 V

≤ VI−VO ≤ 40 V

Regline

−

0.02

0.07

%/V

Load Regulation (Note 3)

10 mA

≤ IO ≤ 0.5 A

VO ≤ 5.0 V

VO ≥ 5.0 V

Regload

−

0.3

1.5

% VO

Temperature Stability (Tlow ≤ TJ ≤ Thigh)

−

0.7

−

% VO

Minimum Load Current to Maintain Regulation (VI − VO = 40 V)

ILmin

−

3.5

Maximum Output Current

VI − VO ≤ 15 V, PD ≤ Pmax

VI − VO = 40 V, PD ≤ Pmax, TA = 25°C

Imax

0.5

0.15

0.9

0.25

−

RMS Noise, % of VO (TA = 25°C, 10 Hz ≤ f ≤ 10 kHz)

−

0.003

−

% VO

Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4)

Without CAdj

CAdj = 10 mF

−

Long−Term Stability, TJ = Thigh (Note 5)

TA= 25°C for End−point Measurements

−

0.3

1.0

%/1.0

kHrs.

2. Tlow to Thigh = 0° to +125°C for LM317M

Tlow to Thigh = − 40° to +125°C for LM317MB.

3. 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.

4. CAdj, when used, is connected between the adjustment pin and ground.

5. Since Long−Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average

stability from lot−to−lot.

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