AOZ1010 Ver la hoja de datos (PDF) - Alpha and Omega Semiconductor
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AOZ1010 Datasheet PDF : 14 Pages
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AOZ1010
Ordering Information
Part Number
Ambient Temperature Range
Package
Environmental
AOZ1010AI
-40°C to +85°C
SO-8
RoHS
All AOS Products are offering in packaging with Pb-free plating and compliant to RoHS standards.
RCooHmSpliant
Please visit wwww.aosmd.com/web/rohs_compliant.jsp for additional information.
Pin Configuration
PGND 1
VIN 2
AGND 3
FB 4
SO-8
(Top View)
8 LX
7 LX
6 EN
5 COMP
Pin Description
Pin Number Pin Name
1
PGND
2
VIN
3
AGND
4
FB
5
COMP
6
EN
7, 8
LX
Pin Function
Power ground. Electrically needs to be connected to AGND.
Supply voltage input. When VIN rises above the UVLO threshold the device starts up.
Reference connection for controller section. Also used as thermal connection for controller
section. Electrically needs to be connected to PGND.
The FB pin is used to determine the output voltage via a resistor divider between the output
and GND.
External loop compensation pin.
The enable pin is active high. Connect EN pin to VIN if not used. Do not leave the EN pin floating.
PWM output connection to inductor. Thermal connection for output stage.
Block Diagram
VIN
EN
UVLO
5V LDO
Internal
OTP
& POR
Regulator
+5V
Reference
& Bias
Softstart
0.8V
FB
+
EAmp
–
+
– PWM
Comp
+
ILimit
PWM
Control
Logic
+
ISen
–
Level
Shifter
+
FET
Driver
COMP
Rev. 1.0 November 2006
500kHz
Oscillator
AGND
www.aosmd.com
Q1
LX
LX
D1
PGND
Page 2 of 14
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