DUAL 42V, 2MHz Sync Buck

DUAL 42V, 2MHz Sync Buck
VIN
3.4V to 42V
VIN1
VOUT1 @1.5A
SW1
LT8616
SW2
VIN2
VOUT2 @2.5A
96% Efficient, 2.5A and 1.5A Outputs, 6.5µA IQ
The LT®8616 brings a new level of performance for 42V input monolithic synchronous buck converters by incorporating
dual outputs in a FMEA compliant 28-pin package. Channel 1 is capable of delivering 1.5A of continuous output current,
while channel 2 can deliver 2.5A, both with outputs as low as 0.8V. Each channel operates 180° out of phase to further
reduce input ripple. Burst Mode® operation requires only 6.5µA of quiescent current (both channels on), thereby extending
battery life in battery-powered systems. For high step-down ratio applications, the LT8616 bucks from 16V down to 1.5V
at a switching frequency of 2MHz, enabling a compact solution footprint.
Efficiency with
12VIN to 5VOUT and 3.3VOUT
Features
• Input Voltage Range: 3.4V to 42V
• Dual Outputs: 2.5A and 1.5A
• Ultralow Quiescent Current: 6.5µA
(Both Channels On)
• Low Output Ripple: < 10mVP-P
• Adjustable/Synchronizable Frequency:
200kHz to 3MHz
• High Step-Down Ratios:
16V to 1.5V @ 2MHz
• 28-Lead 3mm x 6mm QFN and
FMEA Compliant TSSOP-28E Packages
Info & Free Samples
www.linear.com/product/LT8616
www.linear.com/LT86XX
100
90
1-800-4-LINEAR
80
Efficiency (%)
70
60
50
40
30
20
CH1 5VOUT
CH2 3.3VOUT
10
0
0.00001
0.0001
0.001
0.01
Load Current (A)
0.1
1
, LT, LTC, LTM, Linear Technology, the Linear logo and Burst
Mode are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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