LM317MDTXM Fairchild Semiconductor, LM317MDTXM Datasheet

IC REG 3TERM 0.5A POS ADJ DPAK

LM317MDTXM

Manufacturer Part Number
LM317MDTXM
Description
IC REG 3TERM 0.5A POS ADJ DPAK
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of LM317MDTXM

Regulator Topology
Positive Adjustable
Voltage - Output
1.2 ~ 37 V
Voltage - Input
Up to 40V
Number Of Regulators
1
Current - Output
500mA (Max)
Operating Temperature
0°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-252-2, DPak (2 Leads + Tab), TO-252AA, SC-63
Polarity
Positive
Number Of Outputs
1
Output Type
Adjustable
Output Voltage
1.2 V to 37 V
Output Current
100 mA
Line Regulation
0.04 % / V
Load Regulation
0.5 % / V
Input Voltage Max
40 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Reference Voltage
1.3 V
Primary Input Voltage
40V
Output Voltage Adjustable Range
1.2V To 37V
No. Of Outputs
1
No. Of Pins
2
Operating Temperature Range
0°C To +125°C
Filter Terminals
SMD
Rohs Compliant
Yes
Current Rating
0.5A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Dropout (typical)
-
Current - Limit (min)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Features
• Output Current in Excess of 0.5A
• Output Adjustable Between 1.2V and 37V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe Area Compensation
• Floating Operation for High Voltage Applications
Internal Block Diagram
©2011 Fairchild Semiconductor Corporation
LM317M
3-Terminal 0.5A Positive Adjustable Regulator
Input
V in
3
Re fe re nce
V olta ge
V ad j
1
-
+
Description
The LM317M is a 3-terminal adjustable positive voltage
regulator capable of supplying in excess of 500mA over an
output voltage range of 1.2V to 37V. This voltage regulator
is exceptionally easy to use and requires only two external
resistors to set the output voltage.
1. Adj 2. Output 3. Input
D-PAK
TO-220
P rote ction
Circ uitry
1
2
1
3
3
2
R lim it
www.fairchildsemi.com
2
Output
V o
Rev. 1.0.4

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LM317MDTXM Summary of contents

Page 1

... Floating Operation for High Voltage Applications Internal Block Diagram Input ©2011 Fairchild Semiconductor Corporation Description The LM317M is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 500mA over an output voltage range of 1.2V to 37V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage ...

Page 2

LM317M Absolute Maximum Ratings Parameter Input-Output Voltage Differential Power Dissipation Thermal Resistance Junction-Case (TO-220) Thermal Resistance Junction-Air (TO-220) Thermal Resistance Junction-Air (D-PAK (Note1,2)) Operating Junction Temperature Range Storage Temperature Range Electrical Characteristics = 0.1A, 0°C ≤ ...

Page 3

Typical Performance Characteristics Figure 1. Minimum Load Current Figure 3. Adjustment Pin Current vs. Temperature Figure 5. Load Regulation vs. Temperature Figure 2. Peak Output Current vs. Input-Output Differential Voltage Figure 4. Ripple Rejection vs. Frequency Figure 6. Line Regulation ...

Page 4

LM317M Typical Performance Characteristics Figure 7. Outputvoltage vs. Temperature 4 (Continued) Figure 8. Thermal Shutdown ...

Page 5

LM317M Typical Application Input V ADJ D1 protects the device during an input short circuit. Input V ADJ Input LM317M V ADJ 5 D1 1N4002 V LM317M 720 KSP2222 MINIMUM V Figure Electronic Shutdown Regulator LM317M KSP2907 ...

Page 6

Mechanical Dimensions Package ±0.20 6.60 ±0.30 5.34 (0.50) (4.34) MAX0.96 2.30TYP [2.30±0.20] Dimensions in millimeters D-PAK (0.50) ±0.10 0.76 2.30TYP [2.30±0.20] ±0.20 6.60 (5.34) (5.04) (1.50) (2XR0.25) LM317M ±0.10 2.30 0.50 ±0.10 ±0.10 0.50 1.02 ±0.20 2.30 ±0.20 0.76 ±0.10 ...

Page 7

Mechanical Dimensions Package TO-220 [SINGLE GAUGE] (Continued) Dimensions in millimeters LM317M 7 ...

Page 8

... LM317MDT LM317MT DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...

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