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LT1302 Datasheet(PDF) 4 Page - Linear Technology |
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LT1302 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 16 page  4 LT1302/LT1302-5 TYPICAL PERFORMANCE CHARACTERISTICS TEMPERATURE ( °C) –50 100 90 80 70 60 50 –25 025 50 1302 G10 75 100 TEMPERATURE ( °C) –50 300 275 250 225 200 175 150 –25 025 50 1302 G11 75 100 SHUTDOWN VOLTAGE (V) 0 20 18 16 14 12 10 8 6 4 2 0 4 5 1302 G12 13 2 6 7 8 TA = 25°C GND (Pin 1): Signal Ground. Feedback resistor and 0.1 µF ceramic bypass capacitor from VIN should be connected directly to this pin. VC (Pin 2): Frequency Compensation Pin. Connect series RC to GND. Keep trace short. SHDN (Pin 3): Shutdown. Pull high to effect shutdown; tie to ground for normal operation. FB/Sense (Pin 4): Feedback/Sense. On the LT1302 this pin connects to CMP1 input. On the LT1302-5 this pin connects to the output resistor string. PI FU CTIO S IT (Pin 5): Normally left floating. Addition of a 3.3k resistor to GND forces the LT1302 into current mode at light loads. Efficiency drops at light load but increases at medium loads. See Applications Information section. VIN (Pin 6): Supply Pin. Must be bypassed with: (1) a 0.1µF ceramic to GND, and (2) a large value electrolytic to PGND. When VIN is greater than 5V, a low value resistor (2Ω to 10 Ω) is recommended to isolate the VIN pin from input supply noise. Maximum Duty Cycle Oscillator Frequency Shutdown Pin Bias Current LT1302-5 Output Voltage vs Load Current LOAD CURRENT (A) 0 5.20 5.15 5.10 5.05 5.00 4.95 4.90 4.85 4.80 0.1 0.2 0.3 0.4 1302 G13 0.5 0.6 0.7 0.8 0.9 1.0 VIN = 2.2V VIN = 3V VIN = 4V Maximum Output Power* Boost Mode INPUT VOLTAGE (V) 0 20 16 12 8 4 0 8 1302 G14 2 4 * APPROXIMATE 6 10 |
Similar Part No. - LT1302 |
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Similar Description - LT1302 |
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