LT3460 Linear Technology, LT3460 Datasheet
LT3460
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LT3460 Summary of contents
Page 1
... The constant frequency results in low, predictable output noise that is easy to filter. The high voltage switch in the LT3460 is rated at 38V, making the device ideal for boost converters up to 36V. The LT3460 can generate 12V 70mA from supply. The LT3460 is available in SC70 and SOT-23 packages. ...
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... IN SHDN = 250mA Note 2: The LT3460E 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 TOP VIEW LT3460ESC6 6 V ...
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... G04 Current Limit vs Duty Cycle 450 400 350 300 250 200 150 100 100 0 TEMPERATURE ( C) 3460 G06 LT3460 SHDN Pin Bias Current 400 350 SHDN = 16V 300 250 200 150 100 50 SHDN = 100 –50 – TEMPERATURE ( C) 3460 G02 – ...
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... OPERATIO The LT3460 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, which turns on the power switch Q1 ...
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... D1: CENTRAL SEMICONDUCTOR CMDSH2-3 L1: MURATA LQH32CN-220 OR EQUIVALENT Figure 12V Step-Up Converter The LT3460 uses peak current mode control. The current feedback makes the inductor very similar to a current source in the medium frequency range. The power stage transfer function in the medium frequency range can be ...
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... Additional internal compensation com- ponents have taken this into consideration. For most of the applications of LT3460, the output capaci- tor ESR zero is at very high frequency and can be ignored low frequency ESR zero exists, for example, when a ...
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... TA01 Load Step Response OUT 100 s/DIV V OUT 12V 70mA 100mA/DIV 130k 22pF 5V/DIV 16V 15k CONTROL SIGNAL 2V/DIV 3460 TA02 LT3460 Efficiency LOAD CURRENT (mA) 3460 TA01a 3460 TA01b Input Current and Output Voltage ...
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... C2: TAIYO YUDEN X5R EMK212BJ105 D1: CENTRAL SEMICONDUCTOR CMDSH2-3 L1: MURATA LQH32CN-220 OR EQUIVALENT Li-Ion to 5V Step-Up Converter 2. LT3460 4.7 F SHDN FB GND C1: TAIYO YUDEN X5R JMK212BJ475 C2: TAIYO YUDEN X5R JMK212BJ475 D1: PHILIPS PMEG2010 L1: MURATA LQH32CN-100 OR EQUIVALENT 8 V OUT 12V 40mA 130k 22pF C2 ...
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... C2 0.22 F 50V 10k 4mA I LOAD 2mA 3460 TA04 V OUT 36V 4mA V OUT 278k 22pF 100mV/DIV C2 0.22 F 50V 10k 4mA I LOAD 2mA 3460 TA05 LT3460 Load Step Response 100 s/DIV 3460 TA04a Load Step Response 100 s/DIV 3460 TA05a 3460f 9 ...
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... LT3460 PACKAGE DESCRIPTIO 0.62 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6 ...
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... U SC6 Package 6-Lead Plastic SC70 (Reference LTC DWG # 05-08-1638) 1.16 REF 1.15 – 1.35 1.80 – 2.40 0.96 MIN (NOTE 4) PIN 1 0.65 BSC 0.80 – 1.00 1.00 MAX 0.10 – 0.18 (NOTE 3) LT3460 1.80 – 2.20 (NOTE 4) INDEX AREA (NOTE 6) 0.15 – 0.30 6 PLCS (NOTE 3) 0.00 – 0.10 REF SC6 SC70 0802 11 3460f ...
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... 10V LT3460 SHDN FB GND C1, C2: TAIYO YUDEN X5R LMK107BJ105 C3: TAIYO YUDEN X7R LMK107BJ224 D1: ON SEMICONDUCTOR MBR0520 L1, L2: MURATA LQH32CN-220 OR EQUIVALENT RELATED PARTS PART NUMBER DESCRIPTION LT1613 550mA (I ), 1.4MHz, High Efficiency Step-Up DC/DC SW Converter ...