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LM117

LM117 的PDF资料

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LM117 的货源和报价

LM117 的相关技术信息

相关型号

DS1814CR-5-U ICM7556IPD LM1086 LM1117 LM1203 LM124 LM124J LM135

LM117 - 3-Terminal Adjustable Regulator

Features

•	Guaranteed 1% output voltage tolerance (LM317A)
•	Guaranteed max. 0.01%/V line regulation (LM317A)
•	Guaranteed max. 0.3% load regulation (LM117)
•	Guaranteed 1.5A output current
•	Adjustable output down to 1.2V
•	Current limit constant with temperature
•	P⁺ Product Enhancement tested
•	80 dB ripple rejection
•	Output is short-circuit protected

General Description

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. More...

Typical Application

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Typical Performance

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

Qty

Qty

$US each

LM117H

3

STD

NOPB

1

1

NA

NA

Full production

N/A

1K+

$4.65

box
of
500

NSZXYTT LM117HP+

6 weeks

1000

LM117K STEEL

2

STD

NOPB

1

1

NA

NA

Full production

N/A

1K+

$6.13

tray
of
50

NSZXYTT
LM117K
STEELP+

6 weeks

500

LM117E/883

20

STD

1

NA

Full production

N/A

50+

$27.70

rail
of
50

NSZSSXXYYA
LM117E
/883 Q

8 weeks

500

LM117H/883

3

STD

1

NA

Full production

N/A

50+

$13.50

tray
of
20

NSZSSXXYYA LM117H/883 Q

12 weeks

2000

LM117K/883

2

STD

1

NA

Full production

N/A

50+

$19.90

tray
of
50

NSZSSXXYYA
LM117K/883
Q

8 weeks

500

LM117WG/883

16

STD

1

NA

Full production

N/A

50+

$18.80

tray
of
42

NSZSSXXYYA
LM117WG/883 Q

10 weeks

500

JM38510/11703BXA

3

Full production

N/A

50+

$33.20

tray
of
20

NS ZSSXXYYA 27014 Q
JM38510/11703BXA

12 weeks

500

JM38510/11704BYA

2

Full production

N/A

50+

$35.60

tray
of
50

NSZSSXXYYA
JM38510/
11704BYA
27014 Q

6 weeks

500

LM117HRLQMLV

3

STD

1

NA

Full production

N/A

tray
of
N/A

NSZSSXXYYA 5962R99517
05VXA LM117HRLQV Q

N/A

5000

JM38510/11703SXA

3

Full production

N/A

50+

$219.00

tray
of
20

NS ZSSXXYYA 27014 Q
JM38510/11703SXA

N/A

5000

5962R9951703VXA

3

Full production

N/A

50+

$238.00

tray
of
20

NSZSSXXYYA
03VXA LM117HRQV Q

N/A

500

JM38510/11704SYA

2

Full production

N/A

50+

$225.00

tray
of
50

NSZSSXXYYA
JM38510/
11704SYA
27014 Q

N/A

100

LM117KRQMLV

2

STD

1

NA

Full production

N/A

50+

$255.00

tray
of
50

NSZSSXXYYA
R9951704VYA
LM117KRQV Q

N/A

100

LM117WGRLQMLV

16

STD

1

NA

Full production

N/A

tray
of
N/A

NSZSSXXYYA
LM117WGRL
QV Q 5962R
9951705VZA

N/A

5000

5962-9951703VZA

16

Full production

N/A

50+

$199.00

tray
of
42

NSZSSXXYYA
LM117WG-
QV Q 5962-
9951703VZA

N/A

5000

5962R9951703VZA

16

Full production

N/A

50+

$215.00

tray
of
42

NSZSSXXYYA
LM117WGR
QV Q 5962R
9951703VZA

N/A

5000

LM117H MD8

Full production

N/A

tray
of
N/A

N/A

5000

LM117H MDS

Full production

N/A

tray
of
N/A

N/A

500

LM117K MDS

Full production

N/A

tray
of
N/A

N/A

5000

LM117KG MD8

Full production

N/A

tray
of
N/A

N/A

2000

LM117H MW8

Full production

N/A

wafer jar
of
N/A

N/A

5000

LM117KG MW8

Full production

N/A

wafer jar
of
N/A

N/A

5000

General Description

The LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. Also, the LM117 is packaged in standard transistor packages which are easily mounted and handled.

In addition to higher performance than fixed regulators, the LM117 series offers full overload protection available only in IC's. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM117 is useful in a wide variety of other applications. Since 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, i.e., avoid short-circuiting the output.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment pin and output, the LM117 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

For applications requiring greater output current, see LM150 series (3A) and LM138 series (5A) data sheets. For the negative complement, see LM137 series data sheet.

Application Notes

Title Size in Kbytes Date

AN-1148: Application Note 1148 Linear Regulators: Theory of Operation and Compensation 200 Kbytes 25-Sep-02 View Online Download Receive via Email

AN-1148 (Japanese): Application Note 1148 Linear Regulators: Theory of Operation and Compensation
216 Kbytes

AN-1149: Application Note 1149 Layout Guidelines for Switching Power Supplies 113 Kbytes 26-Sep-02 View Online Download Receive via Email

AN-1149 (Japanese): Application Note 1149 Layout Guidelines for Switching Power Supplies
90 Kbytes

AN-173: Application Note 173 IC Zener Eases Reference Design 83 Kbytes 1-Oct-02 View Online Download Receive via Email

AN-178: Application Note 178 Applications for an Adjustable IC Power Regulator 115 Kbytes 3-Oct-02 View Online Download Receive via Email

AN-181: Application Note 181 3-Terminal Regulator is Adjustable 165 Kbytes 3-Oct-02 View Online Download Receive via Email

AN-182: Application Note 182 Improving Power Supply Reliability with IC Power Regulators 56 Kbytes 3-Oct-02 View Online Download Receive via Email

AN-556: Application Note 556 Introduction to Power Supplies 159 Kbytes 25-Sep-02 View Online Download Receive via Email

AN-556 (Japanese): Application Note 556 Introduction to Power Supplies
171 Kbytes

LB-35: Linear Brief 35 Adjustable 3-Terminal Regulator for Low-Cost Battery Charging Systems 70 Kbytes 3-Oct-02 View Online Download Receive via Email

LB-46: Linear Brief 46 A New Production Technique for Trimming Voltage Regulators 71 Kbytes 3-Oct-02 View Online Download Receive via Email

LB-47: Linear Brief 47 High Voltage Adjustable Power Supplies 52 Kbytes 3-Oct-02 View Online Download Receive via Email

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