Adjustable Regulator. LM117QML-SP Datasheet

LM117QML-SP Datasheet PDF


Part Number

LM117QML-SP

Description

3-Terminal Adjustable Regulator

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download LM117QML-SP Datasheet


LM117QML-SP
LM117QML, LM117QML-SP
www.ti.com
SNVS356D – MARCH 2006 – REVISED APRIL 2013
LM117QML 3-Terminal Adjustable Regulator
Check for Samples: LM117QML, LM117QML-SP
FEATURES
1
2 Available with Radiation Ensured
– High Dose Rate 100 krad(Si)
– ELDRS Free 100 krad(Si)
• Specified max. 0.3% Load Regulation (LM117)
• Specified 0.5A or 1.5A Output Current
• Adjustable Output Down to 1.2V
• Current Limit Constant with Temperature
• 80 dB Ripple Rejection
• Output is Short-Circuit Protected
DESCRIPTION
The LM117 series of adjustable 3-terminal positive
voltage regulators is capable of supplying either 0.5A
or 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.
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 the negative complement, see LM137 series data
sheet.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2013, Texas Instruments Incorporated

LM117QML-SP
LM117QML, LM117QML-SP
SNVS356D – MARCH 2006 – REVISED APRIL 2013
CONNECTION DIAGRAMS
www.ti.com
CASE IS OUTPUT
Figure 1. 2-Pin TO Metal Can Package
Bottom View
See K Package
CASE IS OUTPUT
Figure 2. 3-Pin PFM Metal Can Package
Bottom View
See NDT0003A Package
N/C
N/C
ADJ
N/C
INPUT
N/C
N/C
N/C
1
2
3
4
5
6
7
8
16 N/C
15 N/C
14 N/C
13 OUTPUT/SENSE
12 OUTPUT
11 N/C
10 N/C
9 N/C
For the Ceramic SOIC device to function properly, the "Output" and
"Output/Sense" pins must be connected on the users printed circuit
board.
Figure 3. 16-Pin CFP
Top View
Figure 4. 20-Pin LCCC
Top View
See NAJ0020A Package
Part
Number
Suffix
K
H
WG, GW
E
Table 1. LM117 Series Packages
Package
TO
PFM
CFP
LCCC
Design
Load
Current
1.5A
0.5A
0.5A
0.5A
2 Submit Documentation Feedback
Copyright © 2006–2013, Texas Instruments Incorporated
Product Folder Links: LM117QML LM117QML-SP





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