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LTC1682-5 Datasheet(PDF) 5 Page - Linear Technology |
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LTC1682-5 Datasheet(HTML) 5 Page - Linear Technology |
5 / 12 page 5 LTC1682/LTC1682-3.3/LTC1682-5 VOUT (Pin 1): Low Noise Regulated Output Voltage. VOUT should be bypassed with a ≥2µF low ESR capacitor as close to the pin as possible for best performance. The VOUT range is 2.5V to 5.5V. SHDN (Pin 2): Shutdown Input. A logic low on the SHDN pin puts the part in shutdown mode. A logic high enables the part. To continuously enable the part connect SHDN to VIN. When the part is in shutdown, VOUT will be connected to ground via a 100 Ω switch and CPO will be high impedance disconnected from VIN. FB (Pin 3) (LTC1682): The voltage on this pin is compared to the internal reference voltage (1.235V) by the error amplifier to keep the output in regulation. An external resistor divider is required between VOUT and FB to adjust the output voltage. FILT (Pin 3) (LTC1682-3.3/LTC1682-5): This pin is used to filter the internal voltage reference. Typically a 1nF capacitor is connected from FILT to ground. GND (Pin 4): System Ground. C – (Pin 5): Flying Capacitor Negative Input. VIN (Pin 6): Input Voltage, 1.8V to 4.4V. VIN should be bypassed with a ≥2µF low ESR capacitor as close to the pin as possible for best performance. A minimum capaci- tance value of 0.1 µF is required. C+ (Pin 7): Flying Capacitor Positive Input. CPO (Pin 8): Unregulated Charge Pump Output Voltage. Approximately 1.95(VIN) at low loads. Bypass with a ≥ 2µF low ESR capacitor. If a minimum VOUT enable time is required, the CPO capacitor should be 2 × the VOUT capacitor. PIN FUNCTIONS TEMPERATURE ( °C) –50 5.030 5.020 5.010 5.000 4.990 3.340 3.330 3.320 3.310 3.300 3.290 1.238 1.240 1.236 1.234 1682 G09 –25 25 50 125 0 75 100 LTC1682 LTC1682-3.3 LTC1682-5 VIN = 3V IOUT = 10mA VOUT Voltage vs Temperature TYPICAL PERFOR A CE CHARACTERISTICS OUTPUT CURRENT (mA) 0 4.994 4.993 3.300 4.997 4.996 4.995 5.000 4.999 4.998 15 25 40 45 50 1682 G10 3.299 3.298 3.297 3.296 3.295 3.294 510 20 30 35 VIN = 3.3V TA = 25°C LTC1682-5 LTC1682-3.3 VOUT Voltage vs Output Current |
Similar Part No. - LTC1682-5_15 |
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Similar Description - LTC1682-5_15 |
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