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AP62200 Datasheet

2A LOW IQ SYNCHRONOUS BUCK CONVERTER

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Description
AP62200
4.2V TO 18V INPUT, 2A LOW IQ SYNCHRONOUS BUCK CONVERTER
Pin Assignments
The AP62200 is a 2A, synchronous buck converter with a wide input
voltage range of 4.2V to 18V. The device fully integrates a 90m
high-side power MOSFET and a 65mlow-side power MOSFET to
provide high-efficiency step-down DC/DC conversion.
The AP62200 device is easily used by minimizing the external
component count due to its adoption of Constant On-Time (COT)
control to achieve fast transient response, easy loop stabilization, and
low output voltage ripple.
The AP62200 design is optimized for Electromagnetic Interference
(EMI) reduction. It has a proprietary gate driver scheme to resist
switching node ringing without sacrificing MOSFET turn-on and turn-
off times, which reduces high-frequency radiated EMI noise caused
by MOSFET switching.
The device is available in a SOT563 or TSOT26 package.
TOP VIEW
GND 1
VIN 1
6 FB
SW 2
5 EN SW 2
GND 3
4 BST
SOT563
VIN 3
TOP VIEW
TSOT26
6 BST
5 EN
4 FB
Features
VIN: 4.2V to 18V
Output Voltage (VOUT): 0.8V to 7V
2A Continuous Output Current
0.8V ± 1% Reference Voltage (TA = +25°C)
135μA Low Quiescent Current
740kHz Switching Frequency (VIN = 12V, VOUT = 5V)
Up to 84% Efficiency at 5mA Light Load
Proprietary Gate Driver Design for Best EMI Reduction
Protection Circuitry
o Undervoltage Lockout (UVLO)
o Cycle-by-Cycle Valley Current Limit
o Thermal Shutdown
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Flat Screen TV Sets and Monitors
Set Top Boxes
Consumer Electronics
Network Systems
General Purpose Point of Load
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP62200
Document number: DS41957 Rev. 2 - 2
1 of 19
www.diodes.com
July 2019
© Diodes Incorporated


Diodes Semiconductor Electronic Components Datasheet

AP62200 Datasheet

2A LOW IQ SYNCHRONOUS BUCK CONVERTER

No Preview Available !

Typical Application Circuit
INPUT
C1
10µF
VIN BST
EN SW
AP62200
FB
GND
AP62200
C3
100nF L
4.7μH
OUTPUT
VOUT
5V
R1
115kΩ
C2
2x22µF
R2
22.1kΩ
100
90
80
70
60
50
40
30
20
10
0
0.001
Figure 1. Typical Application Circuit
VIN = 12V, VOUT = 5V, L = 4.7μH
VIN = 12V, VOUT = 3.3V, L = 3.3μH
0.010
0.100
IOUT (A)
Figure 2. Efficiency vs. Output Current
1.000
10.000
AP62200
Document number: DS41957 Rev. 2 - 2
2 of 19
www.diodes.com
July 2019
© Diodes Incorporated


Part Number AP62200
Description 2A LOW IQ SYNCHRONOUS BUCK CONVERTER
Maker Diodes
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AP62200 Datasheet PDF






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