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AQ1541

Features: • Enable pin implements sequencing in SOT223-3 footprint• Vout tolerance 1.5% over temperature• Eliminates expensive components• Stable with low cost 1uF capacitor• Low dropout voltage (1V at 1 Amp)• Thermal protection with hysteresis• Short circ...

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SeekIC No. : 004287732 Detail

AQ1541: Features: • Enable pin implements sequencing in SOT223-3 footprint• Vout tolerance 1.5% over temperature• Eliminates expensive components• Stable with low cost 1uF capacitor&...

AQ1541 Data Sheet

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Part Number:
AQ1541
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Enable pin implements sequencing in SOT223-3 footprint
• Vout tolerance 1.5% over temperature
• Eliminates expensive components
• Stable with low cost 1uF capacitor
• Low dropout voltage (1V at 1 Amp)
• Thermal protection with hysteresis
• Short circuit protection
• Offered with 1.8V, 2.5V, and 3.3V fixed or adjustable output
• RoHS compliant available


Application

• Graphic cards
• PC motherboards
• Switching power supply post-regulation
• Telecom equipment
• DVD video player


Pinout

Connection Diagram


Specifications

Parameter
Value
Units
Maximum VIN
18
Volts
Maximum VEN
18
Volts
Maximum IEN
10
mA
Power Dissipation (Internally limited)
Maximum Junction Temperature
150
Operating Junction Temperature Range
0 to 125
Storage Temperature Range
-65 to 150
Lead Temperature (Soldering, 10 sec.) TO packages
300
Lead Temperature (Soldering, 4sec.) SOT- 223 package
300



Description

The AQ1541 is a low dropout three terminal voltage regulator, offered in popular fixed options or an adjustable version that can set a precise voltage from 1.22V to 12V with two external resistors.

AQ1541 drops into the footprint of the popular LM1117 SOT-223 and provides a true fourth pin separated from the output tab. The extra pin allows for an enable function that provides a remote turn-off for low power consumption. AQ1541 draws virtually zero current in shutdown mode. The Enable pin implements Sequential, Ratiometric, or Simultaneous sequencing schemes. To assure accuracy within 1.5% over temperature the heart of the AQ1541 is a selfcorrecting AcuRef™ bandgap reference.

On-chip current limit and thermal shutdown with hysteresis AQ1541 protects against any combination of overload and ambient temperature that might cause the junction temperature to exceed safe limits.

The AQ1541 is featured in the new SOT223 4-lead TetraPackTM package.




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