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LTC3736-2 Datasheet(PDF) 9 Page - Linear Technology |
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LTC3736-2 Datasheet(HTML) 9 Page - Linear Technology |
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9 / 32 page  LTC3852 9 3852f TYPICAL PERFORMANCE CHARACTERISTICS Charge Pump Output Ripple Charge Pump Load Transient Response 1μs/DIV VIN1 = 3.3V IPUMP = 25mA CVPUMP = 4.7μF VPUMP 20mV/DIV (AC-COUPLED) 3852 G38 10μs/DIV VIN = 3.3V IPUMP = 25mA TO 50mA STEP IPUMP 50mA/DIV VPUMP 50mV/DIV (AC-COUPLED) 3852 G39 3852 G40 VIN1 (V) 1.8 2.8 3.8 4.8 5.5 5 4.5 4 3.5 3 125°C 85°C 25°C –45°C Charge Pump Line Regulation with 25mA Load PIN FUNCTIONS SENSE– (Pin 1): The (–) Input to the Current Sense Comparators. Kelvin connect to VOUT at the current sense resistor or, if DCR sensing is used, at the inductor. SENSE+ (Pin 2): Current Sense Comparator Noninverting Input. The (+) input to the current comparator is normally connected to the DCR sensing network or current sensing resistor. PGOOD (Pin 3): Power Good Indicator Output. Open drain logic out that is pulled to ground when the output voltage exceeds the ±10% regulation window, after the internal 17μs power bad mask timer expires. GND2 (Pin 4): Buck Controller Ground. All small-signal components and compensation components should be Kelvin connected to this ground. The (–) terminal of CINTVCC should be closely connected to this pin. The exposed pad must be soldered to the PCB to provide electrical contact for the IC and for optimum thermal performance. BG (Pin 5): Bottom Gate Driver Output. This pin drives the gate of the bottom N-channel MOSFET between GND and INTVCC. C+ (Pin 7): Flying Capacitor Positive Terminal. 2.7 4.5 3.0 3.3 3.6 3.9 4.2 3852 G41 SUPPLY VOLTAGE (VIN1) 100 90 80 70 60 50 40 30 20 10 0 IPUMP = 1mA THEORETICAL MAX IPUMP = 10mA IPUMP = 100mA Efficiency vs Supply Voltage |
Similar Part No. - LTC3736-2 |
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Similar Description - LTC3736-2 |
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