Designed for space-critical applications, the ADR5040 / ADR5041 / ADR5043 / ADR5044 / ADR5045 are high precisionshunt voltage references, housed in ultrasmall SC70 and SOT-23 packages. These voltage references are multipurpose, easy-to-usereferences that can be used in a vast array of applications. They feature low temperature drift, an initial accuracy of better than0.1%, and fast settling time.Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V, and 5.0 V, the advanced design of the ADR5040 / ADR5041 / ADR5043 / ADR5044 / ADR5045 eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitiveload. The minimum operating current increases from 50 µA to a maximum of 15 mA. This low operating current and ease of usemake these references ideally suited for handheld, battery-powered applications. This family of references has been characterizedover the extended temperature range of −40°C to +125°C. The ADR5041W and the ADR5044W are qualified for automotiveapplications and are available in a 3-lead SOT-23 package.Applications Portable, battery-powered equipment Automotives Power supplies Data acquisition systems Instrumentation and process control Energy management

The LTM4681 is a quad 31.25A or single 125A stepdown??Module? (power module) DC/DC regulator featuring?remote configurability and telemetry-monitoring?of power management parameters over PMBus. The?LTM4681 is comprised of digitally programmable analog?control loops, precision mixed-signal circuitry, EEPROM,?power MOSFETs, inductors and supporting components.The LTM4681?s 2-wire serial interface allows outputs?to be margined, tuned and ramped up and down at programmable?slew rates with sequencing delay times. True input current sense, output currents and voltages, output?power, temperatures, uptime and peak values are readable. Custom configuration of the EEPROM contents is not?required. At start-up, output voltages, switching frequency,?and channel phase angle assignments can be set by pinstrapping?resistors. The LTpowerPlay? GUI and DC1613?USB-to-PMBus converter and demo kits are available.?The LTM4681 is offered in a 15mm ? 22mm ? 8.17mm?BGA package available with SnPb or RoHS compliant?terminal finish.APPLICATIONS Multi-Rail Processor Power, Configurable Core Power

Demonstration circuit 761 is a low noise regulated charge pump featuring the LTC3204 (Burst Mode operation) in the 2 × 2 DFN package. There are two assembly versions, DC761A-A and DC761A-B for the LTC3204-5 (5V output) and LTC3204-3.3 (3.3V output) respectively. The DC761A-B produces a regulated 3.3V output from a 1.8V to 4.5V input. The guaranteed output current is 50mA from VIN between 1.9V and 4.5V, and 40mA for VIN less than 1.9V. The circuit requires only three tiny 0603 surface mount capacitors and uses minimal board space. No inductor or diodes are needed. The circuit features automatic Burst Mode® operation at light loads to maintain low supply current.

The LTC2977 is an 8-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include overvoltage and undervoltage threshold limits for eight power supply output channels and one power supply input channel, as well as over and under temperature limits. Programmable fault responses can disable the power supplies with optional retry after a fault is detected. Faults that disable a power supply can automatically trigger black box EEPROM storage of fault status and associated telemetry. An internal 16-bit ADC monitors eight output voltages, one input voltage, and die temperature. In addition, odd numbered channels can be configured to measure the voltage across a current sense resistor. A programmable watchdog timer monitors microprocessor activity for a stalled condition and resets the microprocessor if necessary. A single wire bus synchronizes power supplies across multiple LTC Power System Management (PSM) devices. Configuration EEPROM with ECC supports autonomous operation without additional software.APPLICATIONS Computers and Network Servers Industrial Test and Measurement High Reliability Systems Medical Imaging Video

The ADR440/ADR441/ADR443/ADR444/ADR445 series is a family of XFET® voltage references featuring ultralow noise, high accuracy, and low temperature drift performance. Using Analog Devices, Inc., patented temperature drift curvature correction and XFET (eXtra implanted junction FET) technology, voltage change vs. temperature nonlinearity in the ADR440/ADR441/ADR443/ADR444/ADR445 is greatly minimized.The XFET references offer better noise performance than buried Zener references, and XFET references operate off low supply voltage headroom (500 mV). This combination of features makes the ADR440/ADR441/ADR443/ADR444/ADR445 family ideally suited for precision signal conversion applications in high-end data acquisition systems, optical networks, and medical applications.The ADR440/ADR441/ADR443/ADR444/ADR445 family has the capability to source up to 10 mA of output current and sink up to −5 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.The ADR440/ADR441/ADR443/ADR444/ADR445 family is available in 8-lead MSOP and narrow SOIC packages and offered in two electrical grades. All versions are specified over the extended industrial temperature range of −40°C to +125°C.Applications Precision data acquisition systems High resolution data converters Battery-powered instrumentation Portable medical instruments Industrial process control systems Precision instruments Optical control circuits

Charge Pump Switching Regulator IC Positive or Negative Adjustable (Fixed) 2.5V (-Vin, 2Vin) 1 Output 100mA 8-SOIC (0.154", 3.90mm Width)

The LTC3307A is a very small, high efficiency, low noise, monolithic synchronous 3A step-down DC/DC converter operating from a 2.25V to 5.5V input supply. Using constant frequency, peak current mode control at switching frequencies 1MHz to 3MHz and minimum on-time as low as 22ns, this regulator achieves fast transient response with small external components. Silent Switcher architecture minimizes EMI emissions.The LTC3307A operates in forced continuous or pulse skip mode for low noise, or low-ripple Burst Mode operation for high efficiency at light loads, ideal for battery-powered systems. The IC regulates output voltages as low as 500mV. Other features include output overvoltage protection, short-circuit protection, thermal shutdown, clock synchronization, and up to 100% duty cycle operation for low dropout. The device is available in a low profile 12-lead 2mm ? 2mm ? 0.74mm LQFN package with exposed pad for low thermal resistance.APPLICATIONS Optical Networking, Servers, Telecom Automotive, Industrial, Communications Distributed DC Power Systems (POL) FPGA, ASIC, ?P Core Supplies Battery Operated Systems

2.5V ULTRA LOW NOISE VOLTAGE REF / REEL7

PWM CONTROLLER 60V TSSOP-16; Input Voltage:-; Output Voltage:-; Output Current:-; Supply Voltage Min:6V; Supply Voltage Max:60V; Controller IC Case Style:TSSOP; No. of Pins:16; Frequency:300kHz; Operating Temperature Min:-40 C; ;RoHS Compliant: Yes

Demonstration circuit 516A-B is a low output voltage, synchronous boost converter featuring the LTC3424. The LTC3424 is ideal for applications that require an output voltage between 1.5V to 2.6V from a single alkaline or NiCd/NiMH cell. A bias voltage (VDD) of 2.7V to 5.5V is required to power the internal circuitry. The input voltage (VIN) range is 1V to 1.6V, but once up and running, the device can operate with an input voltage as low as 0.5V. The output voltage is set at 1.8V. For a 1V minimum battery voltage, the LTC3424 can provide 600mA.