Datasheet LT3667 (Analog Devices) - 34

LT3667
TYPICAL APPLICATION 5V, 3.3V and 51mA Regulator
C6 C7 1µF 1µF IN2 IN3 VIN* IN1 BOOST 6V TO 40V C1 C2 L1 2.2µF UVLO1 0.22µF 22µH EN SW 5V D1 400mA C3 DFLS160 R1 22µF DA 931k RT FB1 RT LT3667 R2 f = 600kHz C8 174k 22pF 249k BD OUT2 OUT3 3.3V* 200mA R3 51mA* 499k C5 FB2 FB3 R4 10µF EN2/ILIM2 GND EN3/ILIM3 158k C4 C9 R5 10µF 47nF 6.19k 3667 TA07 C1-C7: X5R OR X7R L1: CDRH4D22/HP *DERATE OUTPUT CURRENT AT HIGHER AMBIENT TEMPERATURES AND INPUT VOLTAGES TO MAINTAIN JUNCTION TEMPERATURE BELOW THE ABSOLUTE MAXIMUM
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT3500 36V (40VMAX), 2A (IOUT), 2.2MHz Step-Down Switching Regulator VIN: 3V to 36V, VOUT(MIN) = 0.8V, IQ = 2.5mA, ISD < 12µA, with LDO Controller 3mm × 3mm DFN-10, MSOP-16E LT1939 25V, 2A (IOUT), 2.2MHz Step-Down Switching Regulator with LDO VIN: 3V to 25V, VOUT(MIN) = 0.8V, IQ = 2.5mA, ISD < 12µA, Controller 3mm × 3mm DFN-10, MSOP-16E LT3694 36V (70VMAX), 2.6A (IOUT), 2.5MHz Step-Down Switching VIN: 4V to 36V, VOUT(MIN) = 0.8V, IQ = 1mA, ISD < 1µA, Regulator with Dual LDO Controller 4mm × 5mm QFN-28, TSSOP-20E LT3507/LT3507A 36V, 2.5MHz, Triple (2.4A + 1.5A + 1.5A (IOUT) with LDO VIN: 4V to 36V, VOUT(MIN) = 0.8V, IQ = 7mA, ISD = 1µA, Controller High Efficiency Step-Down DC/DC Converter 5mm × 7mm QFN-38 LT3970 40V, 350mA (IOUT), 2.2MHz Step-Down Switching Regulator with VIN: 4.2V to 40V, VOUT(MIN) = 1.2V, IQ = 2.5µA, ISD < 1µA, IQ = 2.5µA 3mm × 2mm DFN, MSOP-10 LT3502/LT3502A 40V, 500mA (IOUT), 1.1MHz/2.2MHz Step-Down Switching VIN: 3V to 40V, VOUT(MIN) = 0.8V, IQ = 1.5mA, ISD < 1µA, Regulator 2mm × 2mm DFN-8, MSOP-10E 3667fb 34 LT 1114 REV B • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95 F0or3 m 5- o7re 4 in 17 formation www.linear.com/LT3667 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LT3667 LINEAR TECHNOLOGY CORPORATION 2014 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Revision History Typical Application Related Parts