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ACT4060SH-T, ACT4065SH, ACT4070

Table of contents:
Info of ACT4060SH-T
Info of ACT4065SH
Info of ACT4070

ACT4060SH-T, ACT4065SH, ACT4070 Selling Leads, Datasheet

MFG:ALLEGRO Package Cooled:, D/C:08+

ACT4060SH-T, ACT4065SH, ACT4070 Datasheet download

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Part Number: ACT4060SH-T

MFG: ALLEGRO

Package Cooled: ,

D/C: 08+

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ACT4070 General Description

The ACT4070 is a current-mode step-down DC/DC converter that generates up to 3A output current at 400kHz switching frequency. The device utilizes Active-Semi's proprietary ISOBCD30 process for operation with input voltage up to 30V.

Consuming only 6A in shutdown mode, the ACT4070 is highly efficient with peak efficiency at 95% when in operation. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency fold back at short circuit. The device also includes an internal soft start function to prevent overshoot.

The ACT4070 is available in SOP-8/EP exposed pad package and requires very few external devices for operation.

ACT4070 Maximum Ratings

PARAMETER	VALUE	UNIT
IN to G	-0.3 to +34	V
EN to G	-0.3 to V_IN + 0.3	V
SW to G	-1 to V_IN + 1	V
BS to SW	-0.3 to +8	V
FB, COMP to G	-0.3 to 6	V
Continuous SW Current	Internally limited	A
Junction to Ambient Thermal Resistance (_JA)	46	°C/W
Maximum Power Dissipation	1.8	W
Operating Junction Temperature	-40 to 150	°C
Storage Temperature	-55 to 150	°C
Lead Temperature (Soldering, 10 sec)	300	°C

: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may affect device reliability

ACT4070 Features

3A Output Current
Up to 95% Efficiency
4.5V to 30V Input Range
6A Shutdown Supply Current
400kHz Switching Frequency
Adjustable Output Voltage
Cycle-by-Cycle Current Limit Protection
Thermal Shutdown Protection
Internal Soft Start Function
Frequency Fold Back at Short Circuit
Stability with Wide Range of Capacitors, Including Low ESR Ceramic Capacitors
SOP-8/EP (Exposed Pad) Package

ACT4070 Typical Application

TFT LCD Monitors or Televisions and HDTV
Portable DVD Players
Car-Powered or Battery-Powered Equipment
Set-Top Boxes
Telecom Power Supplies
DSL and Cable Modems and Routers

ACT4070 Connection Diagram

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