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DESCRIPTION
The LTC®3547 is a dual, 2.25MHz, constant-frequency, synchronous step-down DC/DC converter in a tiny 3mm × 2mm DFN package. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Low output voltages are supported with the 0.6V feedback reference voltage. Each regulator can supply 300mA continuous output current.
FEATURES
■ High Effi ciency Dual Step-Down Outputs: Up to 96%
■ 300mA Output Current per Channel at VIN = 3V
■ Automatic Low Ripple Burst Mode Operation
(20mVP-P)
■ Only 40µA Quiescent Current During Operation
(Both Channels)
■ 2.25MHz Constant-Frequency Operation
■ 2.5V to 5.5V Input Voltage Range
■ Low Dropout Operation: 100% Duty Cycle
■ Internally Compensated for All Ceramic Capacitors
■ Independent Internal Soft-Start for Each Channel
■ Current Mode Operation for Excellent Line and Load
Transient Response
■ 0.6V Reference Allows Low Output Voltages
■ Short-Circuit Protected
■ Ultralow Shutdown Current: IQ < 1µA
■ Low Profi le (0.75mm) 8-Lead 3mm × 2mm
DFN PackageAPPLICATIONS
■ Cellular Telephones
■ Digital Still Cameras
■ Wireless and DSL Modems
■ PDAs/Palmtop PCs
■ Portable Media Players -
Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
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- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/13 21:38 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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DHL(www.dhl.com)
$40 limited time offer. -
UPS(www.ups.com)
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FedEx(www.fedex.com)
$40 limited time offer. -
Registered Mail(www.singpost.com)
Free shipping without minimum order.