All the Highs & a Low
60VIN, 24VOUT, 25A/Channel, 850kHz & IQ = 50µA A new generation of dual synchronous, micropower step-down controller, the LTC® 3890 offers performance and feature
advantages for a broad range of power conversion applications. The 4V to 60V input capability covers a wide range of input sources and battery chemistries, protecting against high voltage transients so surge suppression circuits are not required. Minimum on-time of 95ns enables high step-down ratios. Its powerful 1.1 onboard N-channel MOSFET drivers can deliver up to 25A of continuous output current per channel.
Features
• Input Voltage Range: 4V to 60V • Dual Output Voltages: Up to 24V • Up to 25A Output per Channel • 95% Efficient • Low Quiescent Current: 50µA
• Multiphase Capable for Higher Output Current & Low Input Ripple
• High Step-Down Ratios
• RSENSE or Inductor DCR Sensing • Single Output Version: LTC3891
95% 85% 75% 65% 55% 45% 35% 25% 15%
0.0001 0.001 0.01 0.1 VIN = 24V, FSW = 225kHz Efficiency vs Output Current (A) Info and Purchase Visit:
www.linear.com
Linear Technology (UK) Ltd., 3 The Listons, Liston Road, Marlow, Buckinghamshire, SL7 1FD, United Kingdom.
8.5VOUT 3.3VOUT
1 10
Phone: 01628 477066 Fax: 01628 478153 Email:
uksales@linear.com
www.linear.com/ad/3890
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Arrow Electronics UK Ltd 01279 626777 Farnell
08447 11 11 11
Linear Technology (UK) Ltd. 01628 477066
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