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Adjustable Regulator. TL317 Datasheet

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Adjustable Regulator. TL317 Datasheet
















TL317 Regulator. Datasheet pdf. Equivalent













Part

TL317

Description

3-Terminal Adjustable Regulator



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TL317 SLVS004I – APRIL 197 9 – REVISED AUGUST 2016 TL317 100-mA 3-Terminal Adjustable Positive Voltage Regulator 1 Features •1 Output Volta ge Range Adjustable From 1.25 V to 32 V When Used With an External Resistor Di vider • Output Current Capability of 100 mA • Input Regulation .
Manufacture

Texas Instruments

Datasheet
Download TL317 Datasheet


Texas Instruments TL317

TL317; Typically 0.01% Per Input-Voltage Change • Output Regulation Typically 0.5% Ripple Rejection Typically 80 dB 2 A pplications • Power Supplies • Port able Devices • Computing and Servers • Telecommunications • HVAC: Heatin g, Ventilation, and Air Conditioning Desktop PC • Digital Signage • Pr ogrammable Logic Controller • Applian ces Functional Block Diagram Input Iadj .


Texas Instruments TL317

+ 1.25 V Adj. Over Temp & Over Curren t Protection Output Copyright © 2016, Texas Instruments Incorporated 3 Desc ription The TL317 is an adjustable thre e-terminal positivevoltage regulator ca pable of supplying 100 mA over an outpu t-voltage range of 1.25 V to 32 V. It i s exceptionally easy to use and require s only two external resistors to set th e output voltage. T.


Texas Instruments TL317

his regulator offers full overload prote ction available only in integrated circ uits. Included on the chip are current- limiting and thermal-overload protectio n. All overload-protection circuitry re mains fully functional, even when ADJUS TMENT is disconnected. Normally, no cap acitors are required unless the device is situated far from the input filter c apacitors, in whic.





Part

TL317

Description

3-Terminal Adjustable Regulator



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TL317 SLVS004I – APRIL 197 9 – REVISED AUGUST 2016 TL317 100-mA 3-Terminal Adjustable Positive Voltage Regulator 1 Features •1 Output Volta ge Range Adjustable From 1.25 V to 32 V When Used With an External Resistor Di vider • Output Current Capability of 100 mA • Input Regulation .
Manufacture

Texas Instruments

Datasheet
Download TL317 Datasheet




 TL317
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TL317
SLVS004I – APRIL 1979 – REVISED AUGUST 2016
TL317 100-mA 3-Terminal Adjustable Positive Voltage Regulator
1 Features
1 Output Voltage Range Adjustable From
1.25 V to 32 V When Used With an External
Resistor Divider
• Output Current Capability of 100 mA
• Input Regulation Typically 0.01% Per
Input-Voltage Change
• Output Regulation Typically 0.5%
• Ripple Rejection Typically 80 dB
2 Applications
• Power Supplies
• Portable Devices
• Computing and Servers
• Telecommunications
• HVAC: Heating, Ventilation, and Air Conditioning
• Desktop PC
• Digital Signage
• Programmable Logic Controller
• Appliances
Functional Block Diagram
Input
Iadj
+
1.25 V
Adj.
Over Temp &
Over Current
Protection
Output
Copyright © 2016, Texas Instruments Incorporated
3 Description
The TL317 is an adjustable three-terminal positive-
voltage regulator capable of supplying 100 mA over
an output-voltage range of 1.25 V to 32 V. It is
exceptionally easy to use and requires only two
external resistors to set the output voltage.
This regulator offers full overload protection available
only in integrated circuits. Included on the chip are
current-limiting and thermal-overload protection. All
overload-protection circuitry remains fully functional,
even when ADJUSTMENT is disconnected. Normally,
no capacitors are required unless the device is
situated far from the input filter capacitors, in which
case an input bypass is required. An optional output
capacitor can be added to improve transient
response. ADJUSTMENT can be bypassed to
achieve very high ripple rejection.
In addition to replacing fixed regulators, the TL317
regulator is useful in a wide variety of other
applications. Because the regulator is floating and
sees only the input-to-output differential voltage,
supplies of several hundred volts can be regulated as
long as the maximum input-to-output differential is not
exceeded. Its primary application is that of a
programmable output regulator, but by connecting a
fixed resistor between ADJUSTMENT and OUTPUT,
this device can be used as a precision current
regulator. Supplies with electronic shutdown can be
achieved by clamping ADJUSTMENT to ground,
programming the output to 1.25 V, where most loads
draw little current.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TL317D
SOIC (8)
4.90 mm × 3.90 mm
TL317PW
TSSOP (8)
4.30 mm × 3.00 mm
TL317PS
SOP (8)
6.20 mm × 5.30 mm
TL317LP
TO-92 (3)
4.83 mm × 3.68 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.




 TL317
TL317
SLVS004I – APRIL 1979 – REVISED AUGUST 2016
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings ............................................................ 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information .................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristic................................................ 5
7 Detailed Description .............................................. 6
7.1 Overview .................................................................. 6
7.2 Functional Block Diagrams ....................................... 6
7.3 Feature Description .................................................. 7
7.4 Device Functional Modes ......................................... 7
8 Application and Implementation .......................... 8
8.1 Application Information.............................................. 8
8.2 Typical Applications .................................................. 8
9 Power Supply Recommendations...................... 13
10 Layout................................................................... 13
10.1 Layout Guidelines ................................................. 13
10.2 Layout Example .................................................... 13
11 Device and Documentation Support ................. 14
11.1 Receiving Notification of Documentation Updates 14
11.2 Community Resources.......................................... 14
11.3 Trademarks ........................................................... 14
11.4 Electrostatic Discharge Caution ............................ 14
11.5 Glossary ................................................................ 14
12 Mechanical, Packaging, and Orderable
Information ........................................................... 14
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision H (September 2011) to Revision I
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation
section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and
Mechanical, Packaging, and Orderable Information section .................................................................................................. 1
• Deleted Ordering Information table, see POA at the end of the datasheet............................................................................ 3
Changes from Revision G (September 2009) to Revision H
Page
• Changed datasheet format from QuickSilver to DocZone...................................................................................................... 1
• Changed low end output voltage range from 1.2 V to 1.25.................................................................................................... 1
• Added MIN value of 2.5 V for VI – VO parameter in the Recommended Operating Conditions table .................................... 4
2
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Product Folder Links: TL317
Copyright © 1979–2016, Texas Instruments Incorporated




 TL317
www.ti.com
5 Pin Configuration and Functions
D Package
8-Pin SOIC
Top View
TL317
SLVS004I – APRIL 1979 – REVISED AUGUST 2016
PS Package
8-Pin SOP
Top View
INPUT
1
8
OUTPUT
2
7
OUTPUT
3
6
ADJUSTMENT
4
5
Not to scale
PW Package
8-Pin TSSOP
Top View
NC
OUTPUT
OUTPUT
NC
INPUT
1
8
NC
2
7
NC
3
6
NC
4
5
Not to scale
LP Package
3-Pin TO-92
Top View
OUTPUT
NC
ADJUSTMENT
NC
INPUT
1
NC
2
NC
3
ADJUSTMENT
4
8
NC
7
NC
6
OUTPUT
5
NC
Not to scale
NAME
ADJUSTMENT
INPUT
NC
SOIC
4
1
5, 8
OUTPUT
2, 3, 6, 7
PIN
TSSOP
4
1
2, 3, 5, 7, 8
6
Pin Functions
SOP
I/O
TO-92
6
3
1
1
I
2, 3, 4, 5, 7
8
2
O
DESCRIPTION
Supply reference voltage
Input supply voltage
No internal connection
Output voltage, output terminals are all internally
connected.
Copyright © 1979–2016, Texas Instruments Incorporated
Product Folder Links: TL317
Submit Documentation Feedback
3




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