AP1515 查看數據表（PDF） - Anachip Corporation
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AP1515 Datasheet PDF : 9 Pages
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150KHz, 1.5A PWM Buck DC/DC Converter
AP1515
Function Description
Pin Functions
+VIN
This is the positive input supply for the IC switching
regulator. A suitable input bypass capacitor must be
present at this pin to minimize voltage transients
and to supply the switching currents needed by the
regulator.
Ground
Circuit ground.
Output
Internal switch. The voltage at this pin switches
between (+VIN – VSAT) and approximately – 0.5V,
with a duty cycle of approximately VOUT / VIN. To
minimize coupling to sensitive circuitry, the PC
board copper area connected to this pin should be
kept a minimum.
Feedback
Senses the regulated output voltage to complete
the feedback loop.
SD
Allows the switching regulator circuit to be
shutdown using logic level signals thus dropping
the total input supply current to approximately
150uA. Pulling this pin below a threshold voltage of
approximately 1.3V turns the regulator on, and
pulling this pin above 1.3V (up to a maximum of
18V) shuts the regulator down. If this shutdown
feature is not needed, the SD pin can be wired to
the ground pin.
Marking Information
(1) SIP-4L
( Top View )
1515
Y WW X
Part Number: AP1515
Output Type: Adjustable
Date Code
X: Internal code
WW: Nth week: 01~52
Y: Year: "1" = 2001
"2" = 2002
(2) SOP-8L
(Top view)
( Top View )
15-33
Y WW X
Part Number : AP1515
-33: Output Type: 3.3V
Date Code
X: Internal code
WW: Nth week: 01~52
Y: Year: "1" = 2001
"2" = 2002
Part Number
Output Type:
Blank: Adjustable
33: 3.3V
1515-XX
YY WW X
Logo
Date Code
X: Internal code
WW: Nth week
YY: Year
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Oct 24, 2005
7/9
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