AP62600 BUCK CONVERTER Datasheet

AP62600 Datasheet, PDF, Equivalent


Part Number

AP62600

Description

6A SYNCHRONOUS BUCK CONVERTER

Manufacture

Diodes

Total Page 26 Pages
Datasheet
Download AP62600 Datasheet


AP62600
AP62600
4.5V TO 18V INPUT, 6A SYNCHRONOUS BUCK CONVERTER
Description
The AP62600 is a 6A, synchronous buck converter with a wide input
voltage range of 4.5V to 18V. The device fully integrates a 36mΩ high-
side power MOSFET and a 14mΩ low-side power MOSFET to provide
high-efficiency step-down DC-DC conversion.
The AP62600 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 AP62600 design is optimized for Electromagnetic Interference
(EMI) reduction. The device 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 V-QFN2030-12 (Type A) package.
Features
VIN: 4.5V to 18V
Output Voltage (VOUT): 0.6V to 7V
6A Continuous Output Current
0.6V ± 1% Reference Voltage
360μA Quiescent Current
Selectable Switching Frequency
o 400kHz
o 800kHz
o 1.2MHz
Selectable Operation Modes
o Pulse Frequency Modulation (PFM)
o Ultrasonic Mode (USM)
o Pulse Width Modulation (PWM)
Programmable Soft-Start Time
Proprietary Gate Driver Design for Best EMI Reduction
Power-Good Indicator
Precision Enable Threshold to Adjust UVLO
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)
For automotive applications requiring specific change
control (i.e. parts qualified to AEC-Q100/101/200, PPAP
capable, and manufactured in IATF 16949 certified facilities),
please contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Pin Assignments
TOP VIEW
12 11 10 9
PGND
1
VIN 2
8 SW
7 BST
3456
Applications
V-QFN2030-12
(Type A)
5V and 12V Distributed Power Bus Supplies
Television Sets and Monitors
White Goods and Small Home Appliances
FPGA, DSP, and ASIC Supplies
Home Audio
Network Systems
Gaming Consoles
Consumer Electronics
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.
AP62600
Document number: DS42003 Rev. 2 - 2
1 of 26
www.diodes.com
January 2020
© Diodes Incorporated

AP62600
Typical Application Circuit
INPUT
R3
100kΩ
C1
22µF
VIN BST
EN SW
MODE AP62600 FB
FSEL VCC
SS/TR
GND
PG
PGND
C3 L
100nF 1.5μH
Rpg
100kΩ
C5
1µF
OUTPUT
VOUT
5V
R1
221k
C2
3 x 22µF
R2
30.1kΩ
AP62600
Figure 1. Typical Application Circuit
100
90
80
70
60
50
40
30
20
10
0
0.001
PFM
USM
PWM
0.010
0.100
IOUT (A)
1.000
10.000
Figure 2. Efficiency vs. Output Current, VIN = 12V, VOUT = 5V, L = 1.5μH, fSW = 800kHz
100
90
80
70
60
50
40
30
20
10
0
0.001
PFM
USM
PWM
0.010
0.100
IOUT (A)
1.000
10.000
Figure 3. Efficiency vs. Output Current, VIN = 12V, VOUT = 3.3V, L = 1.2μH, fSW = 800kHz
AP62600
Document number: DS42003 Rev. 2 - 2
2 of 26
www.diodes.com
January 2020
© Diodes Incorporated


Features AP62600 4.5V TO 18V INPUT, 6A SYNCHRONOU S BUCK CONVERTER Description The AP626 00 is a 6A, synchronous buck converter with a wide input voltage range of 4.5V to 18V. The device fully integrates a 36mΩ highside power MOSFET and a 14m low-side power MOSFET to provide hig h-efficiency step-down DC-DC conversion . The AP62600 device is easily used by minimizing the external component count due to its adoption of Constant On-Tim e (COT) control to achieve fast transie nt response, easy loop stabilization, a nd low output voltage ripple. The AP626 00 design is optimized for Electromagne tic Interference (EMI) reduction. The d evice has a proprietary gate driver sch eme to resist switching node ringing wi thout sacrificing MOSFET turn-on and tu rn-off times, which reduces high-freque ncy radiated EMI noise caused by MOSFET switching. The device is available in a V-QFN2030-12 (Type A) package. Featur es  VIN: 4.5V to 18V  Output Volt age (VOUT): 0.6V to 7V  6A Continuous Output Current  0.6V ± 1% Refer.
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