Datasheet LTC3423, LTC3424 (Analog Devices) - 12

LTC3423/LTC3424
U TYPICAL APPLICATIO Triple Output Converter
D2 D3 D4 D5 3.6V 2mA 4.7µF 0.1µF 0.1µF 0.1µF 0.1µF D6 V V DD = 2.7V TO 5.5V DD L1 IN D1 2.2µH 4.7µF V V IN = 0.9V TO 1.5V OUT 1.8V D7 700mA –1.1V LTC3423 1mA 6 4 V R1 DD SW 110k 10 7 SHDN VOUT + 1 3 8 C3 – CELL VIN FB 44µF (2× 22µF) 2 9 MODE/SYNC VC C4 C1 C2 1 5 470pF 2.2µF 10µF R2 Rt GND 249k C5 R RC 4.7pF t fOSC = 1MHz 30.1k 82k C1: TAIYO YUDEN JMK212BJ225MG 0 = FIXED FREQ 3423/24 TA05 C2: TAIYO YUDEN JMK212BJ106MM 1 = Burst Mode OPERATION C3: TAIYO YUDEN JMK325BJ226MM D1: ON SEMICONDUCTOR MBRM120T3 D2 TO D7: ZETEX FMND7000 DUAL DIODE L1: SUMIDA CD43-2R2M
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LT1306 Sync, Fixed Frequency, Step-Up DC/DC Converter Internal 2A Switches, VIN As Low As 1.8V LT1308A/LT1308B High Current, Micropower, Single Cell 600kHz DC/DC Converter 5V at 1A from Single Li-Ion Cell LT1317/LT1317B Micropower 600kHz PWM DC/DC Converter VIN As Low As 1.5V, IQ = 100µA LT1610 1.7MHz, Single Cell Micropower DC/DC Converter 3V at 30mA from 1V, 5V at 200mA from 3.3V LT1613 1.4MHz, Single Cell DC/DC Converter in ThinSOTTM VIN As Low As 1.1V, 3V at 30mA from Single Cell LT1615 Micropower Step-Up DC/DC Converter in ThinSOT IQ = 20µA, 1µA Shutdown Current, VIN As Low As 1V LT1949 600kHz, 1A Switch PWM DC/DC Converter 1.1A, 0.5Ω/30V Internal Switch, VIN As Low As 1.8V LTC3400/LTC3400B ThinSOT, 600mA, 1.2MHz Boost Converter 92% Efficiency, 0.85V ≤ VIN, 2.6V ≤ VOUT ≤ 5V LTC3401 Single Cell, High Current (1A) Micropower, Synchronous VIN = 0.5V to 5.5V, Up to 97% Efficiency Synchronizable 3MHz Step-Up DC/DC Converter Oscillator from 100kHz to 3MHz LTC3402 Single Cell, High Current (2A) Micropower, Synchronous VIN = 0.5V to 5.5V, Up to 97% Efficiency Synchronizable 3MHz Step-Up DC/DC Converter Oscillator from 100kHz to 3MHz ThinSOT is a trademark of Linear Technology Corporation. 34234f LT/TP 0302 2K • PRINTED IN USA 12 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2001