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AP1120

DUAL 1A LOW DROPOUT POSITIVE REGULATOR


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AP1120 pdf
AP1120
DUAL 1A LOW DROPOUT POSITIVE REGULATOR
Features
1.3V maximum dropout at full load current
Fast transient response
Output current limiting for each channel
Built-in thermal shutdown each channel
Good noise rejection
Dual output ch1=3.3V, ch2=2.5V
(1.8V for B version)
Lead-Free Package: SOP-8L
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
General Description
AP1120 series are low dropout positive regulator to provide 1A
output current capability. The product is specifically designed to
provide well-regulated supply for low voltage IC applications such
as high-speed bus termination and low current 3.3V/2.5V or
3.3V/1.8V logic supply. AP1120 series are guaranteed to have
<1.3V dropout at full load current making it ideal to provide well
regulated outputs dual channels with up to 18V input supply.
Applications
PC peripheral
Communication
Connection Diagram
(Top View)
GND1 1
VIN1 2
GND2 3
VIN2 4
8 3.3V
7 3.3V
6 2.5V (1.8V)
5 2.5V (1.8V)
AP1120
Ordering Information
AP 1120 X X X X
Package
S : SOP-8L
Vout
Blank : CH1=3.3V
CH2=2.5V
B : CH1=3.3V
CH2=1.8V
Lead Free
L : Lead Free Package
Packing
-U : Tube
-13 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package Packaging
Code (Note 2)
Tube
Quantity Part Number
Suffix
13” Tape and Reel
Quantity
Part Number
Suffix
AP1120S
S SOP-8L
100
-U 2500/Tape & Reel -13
Lead-free
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1120 Rev. 1
1 of 7
www.diodes.com
SEPTEMBER 2006
© Diodes Incorporated



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AP1120 pdf
Pin Descriptions
AP1120
DUAL 1A LOW DROPOUT POSITIVE REGULATOR
NAME
FUNCTION
GND1/2
3.3V(Vout1)
2.5V/1.8V
(Vout2)
VIN1/2
Ground
The output of the regulator. A
minimum of 10uF capacitor
(0.15Ω ≤ ESR 20) must
be connected from this pin to
ground to insure stability.
The input pin of regulator.
Typically a large storage
capacitor (0.15Ω ≤ ESR
20) is connected from this
pin to ground.
Block Diagram
2
Vin 1
Thermal
Shutdown
4
Vin 2
Thermal
Shutdown
7,8
Vout 1
+
+ 1.25V +
CURRENT
LIMIT
+
1
GND 1
5,6
Vout 2
+
+ 1.25V +
CURRENT
LIMIT
+
3
GND 2
AP1120 Rev. 1
2 of 7
www.diodes.com
SEPTEMBER 2006
© Diodes Incorporated



Part Number AP1120
Description DUAL 1A LOW DROPOUT POSITIVE REGULATOR
Maker Diodes Incorporated - Diodes Incorporated
Total Page 7 Pages
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