APW7153AQBI-TRG データシートの表示（PDF） - Anpec Electronics
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APW7153AQBI-TRG Datasheet PDF : 20 Pages
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APW7153/A/B
Pin Description
PIN
TDFN3x3-10
SOP-8P
APW7153 APW7153A APW7153B APW7153
1
-
1
1
-
1
-
-
2
2
2
2
3, 4
3, 4
3, 4
3
5
5
5
4
6, 7
6
6
5
8
7
7
6
-
8
8
-
9
9
9
7
10
10
10
8
11
11
11
9
NAME
FUNCTION
Shutdown/Enable and Oscillator Input. Connecting a resistor to
SHDN/RT GND sets the switching Frequency. Pull the pin to VDD to shut
down the device. Do leave the pin floating.
EN/RT
Shutdown/Enable and Oscillator Input. Connecting a resistor to
VDD sets the switching Frequency. Pull the pin to GND to shut
down the device. Do leave the pin floating.
GND
Signal Ground. Ground of MOSFET Gate Drivers and Control
Circuitry.
LX
Power Switching Output. LX is the Junction of the high-side and
low-side Power MOSFETs to supply power to the output LC filter.
PGND
Power Ground. The Source of the N-channel power MOSFET.
Connect this pin to the system ground with lowest impedance.
PVDD
Power Input. PVDD supplies the step-down converter switches.
Connecting a ceramic bypass capacitor from PVDD to PGND to
eliminate switching noise and voltage ripple on the input to the IC.
VDD
POK
Control circuitry supply Input. VDD supplies the control circuitry,
gate drivers. Connecting a ceramic bypass capacitor from VDD to
GND to eliminate switching noise and voltage ripple on the input
to the IC.
Power Good Output. This pin is open-drain logic output that is
pulled to ground when the output voltage is not within ±12.5% of
regulation point.
Output Feedback Input. The APW7153/A senses the feedback
FB
voltage via FB and regulates the voltage at 0.8V. Connecting FB
with a resistor-divider from the converter’s output sets the output
voltage.
COMP
Output of the error amplifier. Connect a series RC network from
COMP to GND to compensate the regulation control loop. In
some cases, an additional capacitor from COMP to GND is
required.
Exposed Connect the exposed pad to the system ground plan with large
Pad copper area for dissipating heat into the ambient air.
Copyright © ANPEC Electronics Corp.
7
Rev. A.6 - Aug., 2012
www.anpec.com.tw
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