LT3462 LINER [Linear Technology], LT3462 Datasheet
LT3462
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LT3462 Summary of contents
Page 1
... DC/DC converters. Both devices feature an integrated Schottky and a low V switch allowing a small converter footprint and lower parts cost. The LT3462 switches at 1.2MHz while the LT3462A switches at 2.7MHz. These high speeds enable the use of tiny, low cost and low height capacitors and inductors. ...
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... –40V 250mA SCHOTTKY Note 3: The LT3462E is guaranteed to meet specifications from Specifications over the – operating temperature range are assured by design, characterization and correlation with statistical process controls ORDER PART NUMBER LT3462ES6 ...
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... W U TYPICAL PERFOR A CE CHARACTERISTICS Oscillator Frequency (LT3462) 1.6 1.5 1.4 1.3 1.2 1.1 1.0 –40 – 100 TEMPERATURE ( C) 3462 G01 Oscillator Frequency (LT3462A) 3 3.0 2.8 2.6 2.4 2.2 2.0 –40 – 100 TEMPERATURE ( C) 3462 G04 CTIO S SW (Pin 1): Switch Pin. Connect to external inductor L1 and positive terminal of transfer cap. ...
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... IN REFERENCE U OPERATIO The LT3462 uses a constant frequency, current mode control scheme to provide excellent line and load regula- tion. Operation can be best understood by referring to the Block Diagram in Figure 1. At the start of each oscillator cycle, the SR latch is set, turning on the power switch Q1. ...
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... If the device is used in the charge pump mode, where there is only one inductor, then its rating should be 0.35A or greater. DCR of the inductors should be less than 1 . For LT3462, a value suitable if using a coupled inductor such as Sumida CLS62-220. If using two separate inductors, increasing the value will result in the same ripple current ...
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... Li to –8V Supply C2 L1A L1B 2. 4.7 F LT3462 SDREF GND C1: TAIYO YUDEN X5R JMK212BJ475MG C2: TAIYO YUDEN X5R EMK212BJ105MG C3: TAIYO YUDEN LMK316BJ475 L1: SUMIDA CLS62-220 OR 2X MURATA LQH32CN330 6 V OUT –12V 30mA C4 C3 15pF 2 100nF M1 22nF ...
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... U S6 Package 6-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1636) 2.90 BSC (NOTE 4) 1.22 REF 1.50 – 1.75 2.80 BSC 1.4 MIN (NOTE 4) PIN ONE ID 0.95 BSC 0.80 – 0.90 0.09 – 0.20 (NOTE 3) 1.00 MAX LT3462/LT3462A 5V to –5V Supply (LT3462A 267k SW D 22pF LT3462A 68 ...
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... TYPICAL APPLICATIO S 12V to –36V DC/DC Converter 12V LT3462 SDREF GND C1: TAIYO YUDEN X5R EMK212BJ105 C2: MURATA GRM42-6X7R474K50 C3: MURATA GRM42-6X7R474K50 2 D1: CENTRAL CMSH5-4-LTN L1: MURATA LQH32CN470 RELATED PARTS PART NUMBER DESCRIPTION LT1617/LT1617-1 350mA/100mA (I ) High Efficiency SW Micropower Inverting DC/DC Converter ...