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LD1117AXX Datasheet

  • LD1117AXX

  • LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS

  • STMicroelectronics   STMicroelectronics

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LD1117Axx
Low drop fixed and adjustable positive voltage regulators
Features
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Low dropout voltage
(1.15 V typ. @ I
OUT
= 1 A, 25 擄C)
Very low quiescent current
(5 mA typ. @ 25 擄C)
Output current up to 1 A
Fixed output voltage of: 1.2 V, 1.8 V, 2.5 V,
3.3 V
Adjustable version availability (V
REL
= 1.25 V)
Internal current and thermal limit
Only 10 碌F for stability
Available in 鹵 2 % (at 25 擄C) and 4 % in full
temperature range
High supply voltage rejection:
鈥?80 dB typ. (at 25 擄C)
Temperature range: 0 擄C to 125 擄C
DPAK
D
2
PAK/A
TO-220
SOT-223
stability. Only chip trimming allows the regulator to
reach a very tight output voltage tolerance, within
鹵 2 % at 25 擄C.
Description
The LD1117A is a low drop voltage regulator able
to provide up to 1 A of output current, available
even in adjustable version (V
REF
= 1.25 V).
Concerning fixed versions, are offered the
following Output Voltages: 1.2 V, 1.8 V, 2.5 V and
3.3 V. The device is supplied in: SOT-223, DPAK,
D
虜
PAK/A and TO-220. Surface mount packages
optimize the thermal characteristics even offering
a relevant space saving effect. High efficiency is
assured by NPN pass transistor. Only a very
common 10 碌F minimum capacitor is needed for
Table 1.
Device summary
Part numbers
LD1117AXX12
LD1117AXX18
LD1117AXX25
LD1117AXX33
LD1117AXX
April 2008
Rev 20
1/29
www.st.com
29

LD1117AXX PDF文件相關(guān)型號

LD1117AXX18,LD1117AXX25,LD1117AXX28,LD1117AXX33,LD1117AXX50

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