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Alpha & Omega Semiconductors

AOZ6605PI Datasheet Preview

AOZ6605PI Datasheet

5A Synchronous Buck Regulator

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AOZ6605PI
EZBuckTM 5A Synchronous Buck Regulator
General Description
The AOZ6605PI works from 4.5V to 18V input voltage
range, and provides up to 5A of continuous output
current with an output voltage adjustable down to 0.6V.
The AOZ6605PI comes in EPAD-SO8 package and is
rated over a -40°C to +85°C operating ambient
temperature range.
Features
4.5V to 18V operating input voltage range
Synchronous Buck with internal low RDSON (55m/
12m) high-side and low-side MOSFETs
External program soft start
U-PEM (pulse energy mode) enables 86% plus effi-
ciency with Io=10mA (Vin=12V, Vo=5V)
Adjacent pin short protection
Output voltage adjustable to 0.6V
Adjacent pin short protection
5A continuous output current
650kHz PWM operation
Cycle-by-cycle current limit
Pre-bias start-up
Extensive protection features
EPAD-SO8 package
Applications
High reliable DC/DC converters
High performance LCD TV
High performance cable modems
Typical Application
VIN
CSS
CIN
VIN VCC BST
RBST
EN CBST
AOZ6605PI LX
COMP
L1
3.3µH R1
RC SS
FB
CC CIN
GND
R2
VOUT
COUT
Rev. 1.0 February 2017
Figure 1. 5A Synchronous Buck Regulator, Fs = 650kHz
www.aosmd.com
Page 1 of 15




Alpha & Omega Semiconductors

AOZ6605PI Datasheet Preview

AOZ6605PI Datasheet

5A Synchronous Buck Regulator

No Preview Available !

AOZ6605PI
Ordering Information
Part Number
AOZ6605PI
Ambient Temperature Range
-40°C to +85°C
Package
8-Pin EPAD SO
Environmental
Green Product
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Pin Configuration
SS 1
EN 2
VIN 3
GND 4
8
7
LX
6
5
FB
COMP
VCC
BST
Pin Description
Pin Number
1
2
Pin Name
SS
EN
3 VIN
4 GND
5 BST
6 VCC
7 COMP
8
Exposed Pad
FB
LX
Pin Function
Soft Start Pin.
Enable pin. Logic high to enable the device.
Supply voltage input. When VIN rises above the UVLO threshold and EN is logic high, the
device starts up.
Power ground.
Bootstrap. Requires a capacitor connected between LX and BST to form a floating supply
across the high-side switch driver. External loop compensation pin.
Internal LDO output.
External loop compensation pin. Connect a RC network between COMP and GND to com-
pensate the control loop.
Feedback input. The FB pin is used to set the output voltage via a resistive voltage divider
between the output and GND.
Switching node. LX is the drain of the internal power FETs.
Rev. 1.0 February 2017
www.aosmd.com
Page 2 of 16


Part Number AOZ6605PI
Description 5A Synchronous Buck Regulator
Maker Alpha & Omega Semiconductors
Total Page 16 Pages
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