AP1117_10 Datasheet, PDF (1/12 Pages) Diodes Incorporated – 1A LOW DROPOUT POSITIVE ADJUSTABLE

Features
AP1117
1A LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
General Description
• 1.4V Maximum Dropout at Full Load Current
• Fast Transient Response
• Output Current Limiting
• Built-in Thermal Shutdown
• Good Noise Rejection
• 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V,
5.0V
• Lead Free Packages: SOT223-3L, TO252-3L,
SOT89-3L, TO263-3L and TO220-3L
• SOT223-3L, TO252-3L, SOT89-3L, TO263-3L and
TO220-3L: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
AP1117 is a low dropout positive adjustable or fixed-mode
regulator with 1A output current capability. The product is voltage
specifically designed to provide well-regulated supply for low
IC applications such as high-speed bus termination and low
current 3.3V logic supply. AP1117 is also well suited for other
applications such as VGA cards. AP1117 is guaranteed to have
lower than 1.4V dropout at full load current making it ideal to
provide well-regulated outputs of 1.25 to 5.0 with 6.4V to
18V input supply. AP1117 is available in commercial temperature
grade.
Applications
• PC Peripheral
• Communication
Typical Application Circuit
5V
C1
10uF
VIN
VOUT
GND
Tab is VOUT
3.3V/1A
C2
22uF
( 5V/3.3V fixed output )
5V
C1
10uF
VIN
VOUT
Adj
Tab is VOUT
R1
121 Ω
R2
121 Ω
V_{o 2.5V/1A}
C2
22uF
( 5V/2.5V ADJ output )
Note:
V_o
=
V_REF
× (1+
R₂
R₁
)
AP1117 Rev. 19
DS31009
1 of 12
www.diodes.com
JANUARY 2010
© Diodes Incorporated