AOZ1025DIL_2

AOZ1025DIL_2 Datasheet

AOZ1025D

Part	Datasheet
AOZ1025DIL_2	AOZ1025DIL_2 (pdf)

Related Parts	Information
AOZ1025DIL_3	AOZ1025DIL_3

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AOZ1025D EZBuck 8A Synchronous Buck Regulator Not Recommended For New Designs The AOZ1025D is a high efficiency, simple to use, buck to 16V operating input voltage range regulator, capable of up to 8A with an external low side MOSFET. The AOZ1025D works from a 4.75V to 16V input voltage range, The AOZ1025D comes in a 5 x 4 DFN-16 package and is rated over a -40°C to +85°C ambient temperature range. Synchronous rectification Integrated high side MOSFET High efficiency up to 95% s Internal soft start ign Output voltage adjustable to 0.8V Up to 8A continuous output current s Fixed 500kHz PWM operation De Cycle-by-cycle current limit Short-circuit protection Thermal shutdown ew Small size 5 x 4 DFN-16 package N Applications r Point of load DC/DC conversion o Desktops/graphics cards PCIe graphics cards Set top boxes e Blu-Ray and d LCD TVs men Typical Application m VIN = 12V o C1, C2 c 22µF Ceramic Not ReRC 5V DC GOOD AOZ1025D LX COMP NGATE L1 2.2µH VOUT C3, C4, C5 22µF Ceramic AGND PGND Figure 1.2V/8A Synchronous Buck Regulator Page 1 of 15 AOZ1025D Ordering Information Part Number AOZ1025DIL Ambient Temperature Range -40°C to +85°C Package 5 x 4 DFN-16 AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information. Environmental Green Product Pin Configuration LX 1 VIN 2 VIN 3 VIN 4 VIN 5 16 LX 15 LX 14 LX 13 NGATE 12 PGOOD Designs AGND 6 FB 7 w NC 8 AGND 11 PGND 10 EN 9 COMP r Ne 5 x 4 DFN-16 Top Thru View d Fo Pin Description e Pin Number nd 1 e 2, 3, 4, 5 mm 7 co 8 e 9 R 11 ot 12 N 13 Pin Name LX VIN AGND NC COMP EN PGND PGOOD NGATE Pin Function PWM output connection to inductor. Thermal connection for output stage. 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. Not connected External loop compensation pin. The enable pin is active high. Do not leave it open. Power ground. Electrically needs to be connected to AGND. Power Good. Open drain. Use resistor to pull up to 5V supply. Low side MOSFET driver Connect it to the gate of external low side MOSFET. 14, 15, 16 PWM output connection to inductor. Thermal connection for output stage. Page 2 of 15 Block Diagram AOZ1025D UVLO 5V LDO Internal & POR Regulator ISen

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AOZ1025D

EZBuck 8A Synchronous Buck Regulator

Not Recommended For New Designs

The AOZ1025D is a high efficiency, simple to use, buck to 16V operating input voltage range
regulator, capable of up to 8A with an external low side MOSFET. The AOZ1025D works from a 4.75V to 16V input voltage range,

The AOZ1025D comes in a 5 x 4 DFN-16 package and is rated over a -40°C to +85°C ambient temperature range.

Synchronous rectification Integrated high side MOSFET

High efficiency up to 95%
s Internal soft start ign Output voltage adjustable to 0.8V

Up to 8A continuous output current
s Fixed 500kHz PWM operation De Cycle-by-cycle current limit

Short-circuit protection Thermal shutdown
ew Small size 5 x 4 DFN-16 package N Applications r Point of load DC/DC conversion o Desktops/graphics cards PCIe graphics cards Set top boxes e Blu-Ray and d LCD TVs
men Typical Application m VIN = 12V o C1, C2 c 22µF

Ceramic

Not ReRC
5V DC

GOOD

AOZ1025D LX

COMP

NGATE

L1 2.2µH

VOUT

C3, C4, C5
22µF

Ceramic

AGND PGND

Figure 1.2V/8A Synchronous Buck Regulator

Page 1 of 15

AOZ1025D
Ordering Information

Part Number AOZ1025DIL

Ambient Temperature Range -40°C to +85°C

Package 5 x 4 DFN-16

AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information.

Environmental Green Product

Pin Configuration

LX 1 VIN 2 VIN 3 VIN 4 VIN 5
16 LX
15 LX
14 LX
13 NGATE
12 PGOOD

Designs

AGND 6 FB 7
w NC 8

AGND
11 PGND 10 EN 9 COMP
r Ne 5 x 4 DFN-16

Top Thru View
d Fo Pin Description
e Pin Number nd 1 e 2, 3, 4, 5
mm 7 co 8 e 9

R 11 ot 12 N 13

Pin Name LX VIN

AGND

NC COMP

EN PGND PGOOD NGATE

Pin Function

PWM output connection to inductor. Thermal connection for output stage. 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. Not connected External loop compensation pin. The enable pin is active high. Do not leave it open. Power ground. Electrically needs to be connected to AGND. Power Good. Open drain. Use resistor to pull up to 5V supply. Low side MOSFET driver Connect it to the gate of external low side MOSFET.
14, 15, 16

PWM output connection to inductor. Thermal connection for output stage.

Page 2 of 15

Block Diagram

AOZ1025D

UVLO
5V LDO

Internal
& POR

Regulator

ISen

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AOZ1025DIL_2 Datasheet file may be downloaded here without warranties.

Datasheet ID: AOZ1025DIL_2 516303