RT8120B Просмотр технического описания (PDF) - Richtek Technology

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производитель

RT8120B

Single-Phase Synchronous Buck PWM Controller

Richtek Technology 

RT8120

COMP/EN Power On

VUGATE

(20V/Div)

VLGATE

(10V/Div)

VCOMP/EN

(1V/Div)

VOUT

(1V/Div)

VIN = VCC = 12V, VOUT = 1.05V, ILOAD = 10A

Time (500μs/Div)

VUGATE

(20V/Div)

VLGATE

(10V/Div)

VCOMP/EN

(2V/Div)

VOUT

(2V/Div)

Load Transient Response

VUGATE

(20V/Div)

ILOAD

(10A/Div)

VOUT

(50mV/Div)

VIN = VCC = 12V, VOUT = 1.05V,

ILOAD = 0A to15A

Time (10μs/Div)

VUGATE

(20V/Div)

ILOAD

(10A/Div)

VOUT

(50mV/Div)

VUGATE

(20V/Div)

VLGATE

(20V/Div)

Inductor

Current

(20A/Div)

Over Current Protection

VIN = VCC = 12V, VOUT = 1.05V

VOUT

(1V/Div)

ROCSET = 6.2kΩ

Low side MOSFET = IPD06N03 x 2

Time (25μs/Div)

VUGATE

(10V/Div)

VLGATE

(10V/Div)

VFB

(500mV/Div)

COMP/EN Power Off

VIN = VCC = 12V, VOUT = 1.05V, ILOAD = 10A

Time (250μs/Div)

Load Transient Response

VIN = VCC = 12V, VOUT = 1.05V,

ILOAD = 15A to 0A

Time (10μs/Div)

Under Voltage Protection

VIN = VCC = 12V, VOUT = 1.05V, No Load

Time (2.5ms/Div)

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

DS8120-08 September 2013

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

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