The LTC3106 is a highly integrated, ultralow voltage buck-boost DC/DC converter with automatic PowerPath management optimized for multisource, low power systems. At no load, the LTC3106 draws only 1.6?A while creating an output voltage up to 5V from either input source.If the primary power source is unavailable, the LTC3106 seamlessly switches to the backup power source. The LTC3106 is compatible with either rechargeable or primary cell batteries and can trickle charge a backup battery whenever there is an energy surplus available. Optional maximum power point control ensures power transfer is optimized between power source and load. The output voltage and backup voltage, VSTORE, are programmed digitally, reducing the required number of external components. Zero power Shelf Mode ensures that the backup battery will remain charged if left connected to the LTC3106 for an extended time.Additional features include an accurate turn-on voltage, a power good indicator for VOUT, a user selectable 100mA peak current limit setting for lower power applications, thermal shutdown as well as user selectable backup power and output voltages.Applications Wireless Sensor Networks Home or Office Building Automation Energy Harvesting Remote Sensors

The LTC3129 is a high efficiency, 200mA buck-boost DC/DC converter with a wide VIN and VOUT range. It includes an accurate RUN pin threshold to allow predictable regulator turn-on and a maximum power point control (MPPC) capability that ensures maximum power extraction from non-ideal power sources such as photovoltaic panels.The LTC3129 employs an ultralow noise, 1.2MHz PWM switching architecture that minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Built-in loop compensation and soft-start simplify the design. For high efficiency operation at light loads, automatic Burst Mode operation can be selected, reducing the quiescent current to just 1.3?A.Additional features include a power good output, less than 10nA of shutdown current and thermal shutdown.The LTC3129 is available in thermally enhanced 3mm ? 3mm QFN and 16-lead MSOP packages. For fixed output voltage options, see the functionally equivalent LTC3129-1, which eliminates the need for an external feedback divider. Output Voltage LTC3129 Adjustable?1.4V to 15.75V via resistor divider LTC3129-1 8 pin programmable output voltages from 2.5V to 15V Applications Industrial Wireless Sensor Nodes Post-Regulator for Harvested Energy Solar Panel Post-Regulator/Charger Intrinsically Safe Power Supplies Wireless Microphones Avionics-Grade Wireless Headsets

Switching Voltage Regulators Dual-Output Charge Pump

ADP3301 - High Accuracy ANYCAP 100mA Low Dropout Linear Regulator

Demonstration circuit 1267A is a step-up DC/DC regulator featuring the LTC3125EDCB and is ideally suited for pulsed load applications where the input current needs to be limited. Demonstration circuit 1267A is configured for 500mA maximum input current limit and can handle pulsed load currents of up to 2A, with duty cycles of up to 15%. The input voltage range is 3.3V ±10%.

Digital Controller for Isolated Power Supply Applications

Tiny I2C Programmable Linear Battery Charger with Power Path and USB Mode Compatibility Features: 2.6 mm x 2 mm WLCSP Package Fully programmable via I2C Flexible digital control inputs Up to 2.1 A current from an ac charger in LDO mode Operating input voltage from 4.0 V to 6.7 V Tolerant input voltage -0.5 V to +20 V (USB VBUS) Fully compatible with USB 3.0 and USB Battery Charging Specification 1.2 Built-in current sensing and limiting As low as 30 mΩ battery isolation FET between battery and charger output Thermal regulation prevents over heating Compliant with JEITA 1 and JEITA 2 Li-Ion battery charging temperature specifications SYS_EN flag permits the system to be disabled until battery is at minimum required level for guaranteed system start-up.

3-Channel Digital Power Supply Controller

Synchronous Buck Controller with Constant On-Time and Valley Current Mode with Power Saving Mode Features: Power input voltage range: 2.95 V to 20 V On-board bias regulator Minimum output voltage: 0.6 V 0.6 V reference voltage with ±1.0% accuracy Supports all N-channel MOSFET power stages Available in 300 kHz, 600 kHz, and 1.0 MHz options No current-sense resistor required Power saving mode (PSM) for light loads (ADP1879 only) Resistor programmable current limit Power good with internal pull-up resistor Externally programmable soft-start See data sheet for additional features

Dual, 300 mA Fixed Output, Low Noise, High PSRR Voltage Regulator Features: Input voltage range: 2.5 V to 5.5 V Small, 8-lead, 2 mm x 2 mm LFCSP package Initial accuracy: ±1% High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz Low noise: 27 μV rms at VOUT = 1.2 V, 50 μV rms at VOUT = 2.8 V Excellent transient response Low dropout voltage: 170 mV at 300 mA load 65 μA typical ground current at no load, both LDOs enabled Overcurrent and thermal protection