85737 Ismaning, de
+49 (7131) 9234-0
36V, 2A(IOUT), 2.8MHz Step-Down DC/DC Converter with Integrated Boost & Schottky Diode Offers Quiescent Current of Only 50uA
The LT3681 utilizes a high efficiency 3.2A, 360mVCESAT switch, with the necessary boost diode, Schottky diode, oscillator, control and logic circuitry integrated into a DFN package. Low ripple Burst Mode operation maintains high efficiency at low output currents while keeping output ripple below 15mVPK-PK.
Special design techniques enable high efficiency over a wide input voltage range and the devices’s current mode topology ensures fast transient response and excellent loop stability. The LT3681 also includes a power good flag and soft-start capability.
Summary of Features: LT3681
- Wide Input Voltage Range: 3.6V to 34V Operating, 36V Maximum
- 2A Maximum Output Current
- Low Ripple (< 15mVPK-PK Output Ripple) Burst Mode Operation : IQ < 50uA at 12VIN to 3.3VOUT
- Adjustable Switching Frequency: 300kHz to 2.8MHz
- Low Shutdown Current: IQ < 1uA
- Integrated Boost Diode
- Integrated Power Schottky Diode
- Power Good Flag
- Saturating Switch Design: 0.18 On-Resistance
- 1.265V Feedback Reference Voltage
- Output Voltage: 1.265V to 20V
- Soft-Start Capability
- Small 14-Pin Thermally Enhanced (3mm x 4mm) DFN Package
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