lt8410 Linear Technology Corporation, lt8410 Datasheet
lt8410
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lt8410 Summary of contents
Page 1
... The LT8410/ LT8410-1 also features a comparator built into the SHDN pin, overvoltage protection for the CAP and V pins, built in soft-start and comes in a tiny 8-pin 2mm × ...
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... LT8410IDC#PBF LT8410IDC#TRPBF LT8410EDC-1#PBF LT8410EDC-1#TRPBF LT8410IDC-1#PBF LT8410IDC-1#TRPBF Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: ...
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... Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process controls. The LT8410I/LT8410I-1 are guaranteed over the full –40°C to 125°C operating junction temperature range. TYPICAL PERFORMANCE CHARACTERISTICS ...
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... V VOLTAGE (V) CC Quiescent Current in Regulation with No Load 1000 V = 3.6V CC 100 OUTPUT VOLTAGE (V) Peak Inductor Current vs Temperature (LT8410- 3. 16V OUT FIGURE 5 CIRCUIT 120 – TEMPERATURE (°C) Quiescent Current vs Temperature ...
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... V VOLTAGE ( VOLTAGE OUT 10mV/DIV AC COUPLED SW VOLTAGE 10V/DIV INDUCTOR CURRENT 20mA/DIV 8410-1 G13 8410-1 G15 12 16 8410-1 G17 LT8410/LT8410-1 LT8410 Switching Waveform at 0.5mA Load V = 3.6V 2µs/DIV 8410-1 G14 16V OUT UVLO vs Temperature 2.6 2.4 V RISING CC 2.2 V FALLING CC 2.0 1.8 1.6 1.4 – ...
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... 16V OUT 6 SHDN VOLTAGE CAP VOLTAGE V OUT 12 16 8410-1 G19 Pin V OUT AC COUPLED 8410-1 G21 SW Saturation Voltage vs Switch Current (LT8410) 300 250 200 150 100 SWITCH CURRENT (mA) LT8410 Start-Up Waveforms without Capacitor at V Pin REF 5V/DIV ...
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... Exposed Pad (Pin 9): Pin 9 is floating but must be ground- ed for proper shielding. 1 SHDN ENABLE CHIP + 1.235V + – – 1.235V FB – 1.235V + EXPOSED PAD LT8410/LT8410-1 V OUT = 31.85 is driven higher than V . FBP REF CAP OUT 12.4M OUTPUT DISCONNECT 400k CONTROL TIMING AND PEAK SWITCH ...
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... APPLICATIONS INFORMATION Inductor Selection Several inductors that work well with the LT8410 and LT8410-1 are listed in Table 1. The tables are not complete, and there are many other manufacturers and devices that can be used. Consult each manufacturer for more detailed information and for their entire selection of related parts, as many different sizes and shapes are available. Inductors with a value of 47μ ...
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... Never force external power supplies onto the CAP or V Maximum Output Load Current The maximum output current of a particular LT8410 series circuit is a function of several circuit variables. The following method can be helpful in predicting the maximum load ...
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... The voltage ramp rate on the pin can be set by the value of the V Output Disconnect The LT8410 series has an output disconnect PMOS that blocks the load from the input during shutdown. The maximum current through the PMOS is limited by circuitry inside the chip, helping the chip survive output shorts. ...
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... SW pin and always use a ground plane under the switching regulator to minimize interplane coupling. In addition, the FBP pin and V are sensitive to noise. Minimize the length and area of all traces to these two pins is recommended. Recommended component placement is shown in Figure 3. LT8410/LT8410-1 V SHDN IN SHDN V ...
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... C2 0.1µ 16V OUT C3 0.1µF C4 604k 0.1µF 412k 8410-1 TA05 C2 0.1µ 16V OUT C3 0.1µ 301k 0.1µF R2 210k 8410 TA06 LT8410 Maximum Output Current vs Output Voltage MAXIMUM OUTPUT CURRENT ( 0.5 0.7 0.7 0.9 0.8 1 1.4 1.4 1.9 1.6 2.4 3.3 4.6 8 Efficiency vs Load Current 100 V = 12V ...
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... C2 0.1µ 34V OUT C3 0.1µF C4 133k 0.1µF 866k 8410-1 TA09 C2 1.0µ 16V OUT SHDN VOLTAGE C3 10000µ OUT 0.1µF INPUT CURRENT 8410-1 TA10a LT8410-1 Maximum Output Current vs Output Voltage MAXIMUM OUTPUT CURRENT ( 0.12 0.16 0.14 0.19 0.18 0.25 0.25 0.35 0.34 0.48 0.48 0.69 0.84 1.2 2.3 3.3 LT8410/LT8410-1 Efficiency vs Load Current 12V ...
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... LT8410/LT8410-1 PACKAGE DESCRIPTION 2.55 ±0.05 0.64 ±0.05 1.15 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 BAR TOP MARK (SEE NOTE 6) 0.200 REF 14 DC Package 8-Lead Plastic DFN (2mm × 2mm) (Reference LTC DWG # 05-08-1719 Rev A) 0.70 ± ...
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... Revised Note 2 in Electrical Characteristics Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LT8410/LT8410-1 PAGE NUMBER 2 3 ...
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... Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● C3, 0.1µF L1 100µ 0.1µF 2.2µF SW CAP OUT C7 LT8410 0.1µF V SHDN REF C8 143k 0.1µF GND FBP 787k 1.5 2 8410-1 TA12 COMMENTS V : 2.45V to 16V 8-Lead MS Package V : 2.3V to 10V ThinSOT™ ...