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LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5

July 2015

LM317AHV

3-Terminal Positive Adjustable Regulator

Features

• Output Current in Excess of 1.5 A

• Output Adjustable Between 1.2 V and 57 V

• Internal Thermal Overload Protection

• Internal Short-Circuit Current Limiting

• Output Transistor Safe Area Compensation

• TO-220 Package

Ordering Information

Block Diagram

Figure 1. Block Diagram

Product Number Marking Package Packing Method Operating Temperature

LM317AHVT LM317AHV TO-220 3L (Single Gauge) Rail -40 to +125°C

Rlimit

3Vin

Voltage

Reference

Vadj

Protection

Circuitry

Input

Output

Description

This monolithic integrated circuit is an adjustable 3-termi-

nal positive voltage regulator designed to supply more

than 1.5 A of load current with an output voltage adjust-

able over a 1.2 V to 57 V. It employs internal current limit-

ing, thermal shut down and safe area compensation.

TO-220 (Single Gauge)

1. Adj 2. Output 3. Input

Output

LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5 2

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the re co mmen ded operating conditions and s tres si ng the parts to these level s i s not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted.

Thermal Characteristics

Values are at TA = 25°C unless otherwise noted.

Symbol Parameter Value Unit

VI - VOInput-Output Voltage Differential 60 V

TLEAD Lead Temperature 230 °C

TJOperating Junction Temperature Range -40 to +125 °C

TSTG Storage Temperature Range -65 to +125 °C

ΔVO/ΔT Temperature Coefficient of Output Voltage ±0.02 %/°C

Symbol Parameter Value Unit

PDPower Dissipation Internally Limited W

RθJC Thermal Resistance, Junction to Case 5 °C/W

LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5 3

Electrical Characteristics

VI - VO = 5 V, IO = 0.5 A, -40°C ≤ TJ ≤ +125°C, IMAX = 1.5 A, PDMAX = 20 W, un less otherwise specified.

Notes:

1. Load and line re gulation are spe cified at cons tan t jun ction temp erature . Change in VD due to hea ting ef fec ts must be

taken into account separately. Pulse testing with low duty is used. (PMAX = 20 W)

2. CADJ, when used, is connected between the adjustment pin and ground.

Symbol Parameter Conditions Min. Typ. Max. Unit

Rline Line Regulation(1) TA = +25°C, 3 V ≤ VI - VO ≤ 60 V 0.01 0.04 %/V

3 V ≤ VI - VO ≤ 60 V 0.02 0.07

Rload Load Regulation (1)

TA = +25°C, 10 mA ≤ IO ≤ IMAX, VO < 5 V 18 25 mV

TA = +25°C, 10 mA ≤ IO ≤ IMAX, VO ≥ 5 V 0.4 0.5 %/VO

10 mA ≤ IO ≤ IMAX, VO < 5 V 40 70 mV

10 mA ≤ IO ≤ IMAX, VO ≥ 5 V 0.8 1.5 %/VO

IADJ Adjustable Pin Current - 46 100 μA

ΔIADJ Adjustable Pin Current

Change

TJ = 0°C to +125°C, 3 V ≤ VI - VO ≤ 60 V,

10 mA ≤ IO ≤ IMAX, PD ≤ PMAX 25

μA

3 V ≤ VI - VO ≤ 60 V,

10 mA ≤ IO ≤ IMAX, PD ≤ PMAX 10

VREF Reference Voltage

TJ = 0°C to +125°C, 3 V ≤ VI - VO ≤ 60 V,

10 mA ≤ IO ≤ IMAX, PD ≤ PMAX 1.20 1.25 1.30 V

3 V ≤ VI - VO ≤ 60 V,

10 mA ≤ IO ≤ IMAX, PD ≤ PMAX 1.19 1.30

STTTemperature Stability TJ = -40°C to +125°C0.7%/V

IL(MIN) Minimum Load Current

to Maintain Regulati on VI - VO = 60 V 3.5 12.0 mA

IO(MAX) Maximum Output Current VI - VO ≤ 15 V, PD ≤ PMAX 1.0 2.2 A

VI - VO ≤ 60 V, PD ≤ PMAX, TA = +25°C0.3

eNRMS Noise, % of VOUT TA = +25°C, 10 Hz ≤ f ≤ 10 kHz 0.003 0.010 %/VO

RR Ripple Rejection VO = 10 V, f = 120 Hz, without CADJ 60 dB

VO = 10 V, f = 120 Hz, CADJ = 10 μF(2) 66 75

ST Long-Term Stability,

TJ = THIGH

TA = +25°C for end point measurements,

1000HR 0.3 1.0 %

LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5 4

Typical Performance Characteristics

Figure 2. Load Regulation Figure 3. Adjustment Current

Figure 4. Dropout Voltage Figure 5. Reference Voltage

TEMPERATURE (°C)

OUTPUT VOLTAGE DEVIATION(%)

TEMPERATURE (°C)

ADJUSTMENT CURRENT (uA)

TEMPERATURE (°C)

INPUT-OUTPUT DIFFERENTIAL(V)

TEMPERATURE (°C)

REFERENCE VOLTAGE(V)

LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5 5

Typical Application(3)

Figure 6. Programmable Regulator

Note:

3. Ci is required when regulator is located an appreciable distance from power supply filter. Co is not needed for

stability, however, it does improve transient response. Since IADJ is controlled to less than 100 μA, the error

associated with this term is negligible in most applications.

KA317

0. 1μF

VI Vo

Vadj

Iadj

= 1.25V (1+ R2/ R1)+Iadj

Iadj

1μF

Input Output

LM317HV

LM317AHV — 3-Terminal Positive Adjustable Regulator

LM317AHV Rev. 1.5 6

Physical Dimensions

Figure 7. TO-220, MOLDED, 3LEAD, JEDEC VARIATION AB

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Rev. I75

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