LM317T datasheet(5/38 Pages) TI1

Part #	LM317T

Description	LM117/LM317A/LM317-N 3-Terminal Adjustable Regulator

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Manufacturer	TI1 [Texas Instruments]

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LM117, LM317-N

www.ti.com

SNVS774L – MAY 2004 – REVISED FEBRUARY 2011

LM117 Electrical Characteristics

(1) (continued)

Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating

Temperature Range. Unless otherwise specified, VIN − VOUT = 5V, and IOUT = 10 mA.

LM117 (2)

Parameter

Conditions

Min

Typ

Max

Units

VOUT = 10V, f = 120 Hz, CADJ = 0 μF

65

dB

Ripple Rejection Ratio

VOUT = 10V, f = 120 Hz, CADJ = 10 μF

66

80

dB

Long-Term Stability

TJ = 125°C, 1000 hrs

0.3

1

%

NDS (TO-3) Package

2

Thermal Resistance,

θJC

NDT (TO) Package

21

°C/W

Junction-to-Case

NAJ (LCCC) Package

12

NDS (TO-3) Package

39

Thermal Resistance,

θJA

Junction-to-Ambient

NDT (TO) Package

186

°C/W

(No Heat Sink)

NAJ (LCCC) Package

88

LM317A and LM317-N Electrical Characteristics

(1)

Specifications with standard type face are for TJ = 25°C, and those with boldface type apply over full Operating

Temperature Range. Unless otherwise specified, VIN − VOUT = 5V, and IOUT = 10 mA.

LM317A

LM317-N

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Units

1.238

1.250

1.262

-

1.25

-

V

Reference Voltage

3V

≤ (VIN − VOUT) ≤ 40V,

1.225

1.250

1.270

1.20

1.25

1.30

V

10 mA

≤ IOUT ≤ IMAX

(1)

0.005

0.01

0.04

Line Regulation

3V

≤ (VIN − VOUT) ≤ 40V

(2)

%/V

0.01

0.02

0.07

0.1

0.5

0.1

0.5

Load Regulation

10 mA

≤ IOUT ≤ IMAX

(1) (2)

%

0.3

1

0.3

1.5

Thermal Regulation

20 ms Pulse

0.04

0.07

0.04

0.07

%/W

Adjustment Pin Current

50

100

50

100

μA

Adjustment Pin Current

10 mA

≤ IOUT ≤ IMAX

(1)

0.2

5

0.2

5

μA

Change

3V

≤ (VIN − VOUT) ≤ 40V

Temperature Stability

TMIN ≤ TJ ≤ TMAX

1

%

Minimum Load Current

(VIN − VOUT) = 40V

3.5

10

3.5

10

mA

NDS, KTT Packages

-

1.5

2.2

3.4

(VIN − VOUT) ≤ 15V

DCY, NDE Packages

1.5

2.2

3.4

1.5

2.2

3.4

A

NDT, MDT Packages

0.5

0.8

1.8

0.5

0.8

1.8

Current Limit

NDS, KTT Packages

-

0.15

0.40

(VIN − VOUT) = 40V

DCY, NDE Packages

0.112

0.30

0.112

0.30

A

NDT, MDT Packages

0.075

0.20

0.075

0.20

RMS Output Noise, % of

10 Hz

≤ f ≤ 10 kHz

0.003

%

VOUT

VOUT = 10V, f = 120 Hz, CADJ = 0 μF

65

dB

Ripple Rejection Ratio

VOUT = 10V, f = 120 Hz, CADJ = 10 μF

66

80

66

80

dB

Long-Term Stability

TJ = 125°C, 1000 hrs

0.3

1

0.3

1

%

(1)

IMAX = 1.5A for the NDS (TO-3), NDE (TO-220), and KTT (TO-263) packages. IMAX = 1.0A for the DCY (SOT-223) package. IMAX = 0.5A

for the NDT (TO), MDT (PFM), and NAJ (LCCC) packages. Device power dissipation (PD) is limited by ambient temperature (TA), device

maximum junction temperature (TJ), and package thermal resistance (θJA). The maximum allowable power dissipation at any

temperature is : PD(MAX) = ((TJ(MAX) - TA)/θJA). All Min. and Max. limits are ensured to TI's Average Outgoing Quality Level (AOQL).

(2)

Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to

heating effects are covered under the specifications for thermal regulation.

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