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LQH3C4R7 Datasheet(PDF) 8 Page - Linear Technology |
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LQH3C4R7 Datasheet(HTML) 8 Page - Linear Technology |
8 / 8 page 8 LT1945 1945f Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 q FAX: (408) 434-0507 q www.linear.com ©LINEAR TECHNOLOGY CORPORATION 2001 LT/TP 0802 2K • PRINTED IN USA RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1613 550mA ISW, 1.4MHz, High Efficiency Step-Up DC/DC Converter VIN = 0.9V to 10V, VOUT = 34V, IQ = 3mA, ISD = <1µA, ThinSOT Package LT1615/LT1615-1 300mA ISW, Constant Off-Time, High Efficiency VIN = 1.2V to 15V, VOUT = 34V, IQ = 20µA, ISD = <1µA, Step-Up DC/DC Converter ThinSOT Package LT1940 Dual Output 1.4A (IOUT), Constant 1.1MHz, High Efficiency VIN = 3V to 25V, VOUT = 1.2V, IQ = 2.5mA, ISD = <1µA, Step-Down DC/DC Converter TSSOP-16E Package LT1944 Dual Output 350mA ISW, Constant Off-Time, High Efficiency VIN = 1.2V to 15V, VOUT = 34V, IQ = 20µA, ISD = <1µA, MS Package Step-Up DC/DC Converter LT1944-1 Dual Output 150mA ISW, Constant Off-Time, High Efficiency VIN = 1.2V to 15V, VOUT = 34V, IQ = 20µA, ISD = <1µA, MS Package Step-Up DC/DC Converter LT1949/LT1949-1 550mA ISW, 600kHz/1.1MHz, High Efficiency VIN = 1.5V to 12V, VOUT = 28V, IQ = 4.5mA, ISD = <25µA, Step-Up DC/DC Converter S8, MS8 Packages LTC3400/LTC3400B 600mA ISW, 1.2MHz, Synchronous Step-Up DC/DC Converter VIN = 0.85V to 5V, VOUT = 5V, IQ = 19µA/300µA, ISD = <1µA, ThinSOT Package LTC3401 1A ISW, 3MHz, Synchronous Step-Up DC/DC Converter VIN = 0.5V to 5V, VOUT = 6V, IQ = 38µA, ISD = <1µA, MS Package LTC3402 2A ISW, 3MHz, Synchronous Step-Up DC/DC Converter VIN = 0.5V to 5V, VOUT = 6V, IQ = 38µA, ISD = <1µA, MS Package LTC3423 1A ISW, 3MHz, Low VOUT, Synchronous Step-Up VIN = 0.5V to 5V, VOUT = 6V, IQ = 38µA, ISD = <1µA, MS Package DC/DC Converter LTC3424 2A ISW, 3MHz, Low VOUT, Synchronous Step-Up VIN = 0.5V to 5V, VOUT = 6V, IQ = 38µA, ISD = <1µA, MS Package DC/DC Converter Dual Output ( ±32V) Converter VIN SW1 FB2 LT1945 4 3 L1 10 µH D1 D2 SHDN2 24.9k 604k C2 1 µF –32V 5mA VIN 2.7V TO 5V 1945 TA02 GND 7 PGND 9 PGND 6 810 SW2 4.7pF C1 4.7 µF NFB1 2 5 1 SHDN1 L2 10 µH D3 2M 80.6k C3 1 µF 100pF C1: TAIYO YUDEN JMK212BJ475 C2, C3: TAIYO YUDEN GMK316BJ105 C4: TAIYO YUDEN UMK212BJ104 D1, D2, D3: ZETEX ZHCS400 L1, L2: MURATA LQH3C100 32V 5mA C4 0.1 µF (408)573-4150 (408)573-4150 (408)573-4150 (631)543-7100 (814)237-1431 TYPICAL APPLICATIO LOAD CURRENT (mA) 0.1 50 55 60 65 70 80 110 1945 TA02a 75 +32V OUTPUT –32V OUTPUT Efficiency at VIN = 3.6V |
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