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TLV1117CDCY Datenblatt(PDF) 11 Page - Texas Instruments

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Teilenummer TLV1117CDCY
Bauteilbeschribung  ADJUSTABLE AND FIXED LOW-DROPOUT VOLTAGE REGULATOR
PDF  36 Pages
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
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TLV1117CDCY Datenblatt(HTML) 11 Page - Texas Instruments

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10
µF
(see Note C)
100
µF
(see Note A)
R1
R2
INPUT
OUTPUT
ADJ/GND
TLV1117 − ADJ
VO
VI
CADJ
(see Note B)
1N4002 (See Note D)
IADJ
VREF
Because IADJ typically is 55 µA, it is negligible in most applications.
V
OUT
+ VREF 1 )
R2
R1
) (IADJ
R2)
VOUT is calculated as:
TLV1117
www.ti.com
SLVS561K – DECEMBER 2004 – REVISED APRIL 2013
APPLICATION INFORMATION
A.
Output capacitor selection is critical for regulator stability. Larger COUT values benefit the regulator by improving
transient response and loop stability.
B.
CADJ can be used to improve ripple rejection. If CADJ is used, a COUT that is larger in value than CADJ must be used.
C.
CIN is recommended if TLV1117 is not located near the power-supply filter.
D.
An external diode is recommended to protect the regulator if the input instantaneously is shorted to GND.
E.
This device is designed to be stable with tantalum and aluminum electrolytic output capacitors having an ESR
between 0.2
Ω and 10 Ω.
Figure 1. Basic Adjustable Regulator
Copyright © 2004–2013, Texas Instruments Incorporated
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Product Folder Links: TLV1117



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