(Hong Kong)
Product Summary
The LTC3701EGN#TR is a 2-phase dual constant frequency current mode step-down DC/DC controller providing excellent load and line regulation. Power loss and noise due to ESR of the input capacitor are minimized by operating the two controller output stages out-of-phase. The LTC3701EGN#TR contains independent internal soft-start circuitry for each controller. Other features include a power good output voltage monitor and output overvoltage and short-circuit protection. The LTC3701EGN#TR is available in a small footprint 16-lead narrow SSOP package. The applications of the LTC3701EGN#TR are (1)one or two lithium-iopowered applications; (2)notebook and handheld computers; (3)personal digital assistants; (4)portable instruments; (5)distributed dc power systems.
Parametrics
LTC3701EGN#TR absolute maximum ratings: (1)SVIN, PVIN Supply Voltages : – 0.3V to 6V; (2)ITH, RUN/SS, VFB, PGOOD Voltages : – 0.3V to VIN; (3)VREF Voltage : – 0.3V to VIN; (4)SW Voltage : – 0.3V to (VIN + 0.3V); (5)Peak SW Sink and Source Current : 7.2A; (6)Operating Ambient Temperature Range: –40°C to 85°C; (7)Junction Temperature: 125°C; (8)Storage Temperature Range : –65°C to 150°C; (9)Lead Temperature (Soldering, 10 sec): 300°C.
Features
LTC3701EGN#TR features: (1)Out-of-Phase Controllers Reduce Required Input Capacitance; (2)True PLL for Frequency Locking or Frequency Adjustment; (3)Operating Frequency Range: 300kHz to 750kHz; (4)Wide VIN Range: 2.5V to 10V; (5)Constant Frequency Current Mode Architecture; (6)Low Dropout: 100% Duty Cycle; (7)Power Good Output Voltage Monitor; (8)Internal Soft-Start Circuitry; (9)Selectable Burst Mode/Pulse Skipping Operatioat Light Loads; (10)Output Overvoltage Protection; (11)Low Quiescent Current: 460mA; (12)0.8V ±2% Voltage Reference; (13)Small 16-Lead Narrow SSOP Package.
Diagrams
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 LTC3701EGN#TR |
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IC REG CTRLR BUCK PWM CM 16-SSOP |
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LTC3701EGN#TRPBF |
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IC REG CTRLR BUCK PWM CM 16-SSOP |
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