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ACT4082A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 1.4MHz Step-Down DC/DC Converter - Active-Semi

भाग संख्या ACT4082A
समारोह 1.4MHz Step-Down DC/DC Converter
मैन्युफैक्चरर्स Active-Semi 
लोगो Active-Semi लोगो 
पूर्व दर्शन
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ACT4082A pdf
Active-Semi
ACT4082A
Rev0, 16-May-08
ORDERING INFORMATION
PART NUMBER TEMPERATURE RANGE
ACT4082AUS-T
-40°C to 85°C
PACKAGE
SOT23-6
PINS
6
PACKING TOP MARK
TAPE & REEL
FMGD
PIN CONFIGURATION
SW 1
6 BST
IN 2 ACT4082A 5 G
EN 3
SOT23-6
4 FB
PIN DESCRIPTIONS
PIN NUMBER
1
2
3
4
5
6
PIN NAME
SW
IN
EN
FB
G
BST
PIN DESCRIPTION
Switch Output. Connect this pin to the switching end of the inductor.
Power supply input. Bypass this pin with a 10µF ceramic capacitor to G, placed as
close to the IC as possible.
Enable Input. EN is pulled up to 5V with a 2µA current, and contains a precise 1.24V
logic threshold. Drive this pin to a logic-high or leave unconnected to enable the IC.
Drive to a logic-low to disable the IC and enter micro-power shutdown mode.
Feedback Input. The voltage at this pin is regulated to 0.81V. Connect to the center
point of a resistive voltage-divider between OUT and G to set the output voltage.
Ground and Heat sink. Connect this pin to a large, uncovered PCB copper area for
best heat dissipation.
Bootstrap. This pin acts as the power supply for the high-side switch’s gate driver.
Connect a 22nF capacitor between this pin and SW.
Innovative PowerTM
- 2 - www.active-semi.com
Copyright © 2008 Active-Semi, Inc.

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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
ACT4082A1.4MHz Step-Down DC/DC ConverterActive-Semi
Active-Semi


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