DC249A-B: Demo Board for the LTC1682 Doubler Charge Pumps with Low Noise Linear Regulator.

Demonstration circuit 2501A features the LTM®8002, a 40V, 2.5A step-down µModule® regulator. This demo circuit is configured to deliver a 5.0V output from an input voltage between 6.0V to 40V at a switching frequency of 1MHz. The wide input range of the LTM8002 allows a variety of input sources such as automotive batteries and industrial supplies. Under light load conditions, the available Burst Mode® operation supports high efficiency with low output ripple. The demo board has an EMI filter installed. The EMI performance of the board is shown in Figure 6 and Figure 7. The LTM8002 data sheet gives complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit 2501A.

The DC2518A is a demonstration system for the LTC2975 Power System Manager that interfaces to various regulators. The board contains all the circuitry needed to use the LTC2975 in a power system and control four power supplies. The four power supplies include linear and switching regulators for the purpose of demonstrating a variety of methods to sense voltage and current. The demo board provides a sophisticated, digitally programmable 4-channel power supply system.

Demonstration circuit 2529A is a dual output synchronous buck converter featuring the LTC7810ELXE in a 48-lead eLQFP package. Key features of this board include: an optional on-board NMOS LDO for DRVCC; jumper for spread-spectrum option; optional resistors for single output dual phase operation; a mode selector that allows the converter to run in CCM, pulse-skipping, adjustable burst clamp or default Burst Mode® operation; SYNC turret for Poly-Phase® operation. The input voltage range of this demo board is from 16V to 130V and it uses a sense resistor for overcurrent protection. The LTC7810 data sheet gives a complete description of the part, operation and application information and must be read in conjunction with this demo manual for DC2529A.

Demonstration circuit 2569A is ultrathin step-up μModule regulator featuring the LTM4661. The DC2569A operates over 1.8V to 5.5V input and it generates 12V, 1A output from 5V input. Also, the LTM4661 has precision voltage reference, which can generate output voltage with 3% tolerance over the full operating conditions. The 1MHz switching frequency operation results in small and efficient circuit. The converter operates with only one phase in burst mode and achieves over 90% efficiency with 100mA load. The demonstration circuit can be easily modified to generate different output voltages.

Demonstration circuit 2584A is an IEEE 802.3bt (Draft 2.1) compliant Power over Ethernet (PoE) Powered Device (PD). It features the LT4295 PD interface and switching regulator controller and the LT4321 PoE ideal diode bridge controller.

The LTC2387-18 is a low noise, high speed, 18-bit 15Msps successive approximation register (SAR) ADC ideally suited for a wide range of applications. The combination of excellent linearity and wide dynamic range makes the LTC2387-18 ideal for high speed imaging and instrumentation applications. No latency operation provides a unique solution for high speed control loop applications. The very low distortion at high input frequencies enables communications applications requiring wide dynamic range and significant signal bandwidth.To support high speed operation while minimizing the number of data lines, the LTC2387-18 features a serial LVDS digital interface. The LVDS interface has one-lane and two-lane output modes, allowing the user to optimize the interface data rate for each application.Applications High Speed Data Acquisition Imaging Communications Control Loops Instrumentation ATE

Demonstration circuit 2598A is a 60V 2MHz synchronous buck-boost controller featuring the LT8390A. It accepts an input voltage from 4V to 24V (with transient to 60V) and regulates 12V output at up to 4A. DC2598A features high efficiency and 2MHz switching frequency, a high speed for a 4-switch buck-boost controller. It has a PGOOD flag, short-circuit fault protection, ISMON current-monitoring output signal, and spread spectrum frequency modulation (SSFM) or frequency synchronization.

The LTC7106 is a precision, PMBus controlled, bidirectional current digital-to-analog converter that adjusts the output voltage of any conventional VFB referenced regulator. The LTC7106 can work with the vast majority of power management controllers or regulators to enable digital control of the output voltage. Internal power-on reset circuitry keeps the DAC output current at zero (high impedance IDAC) until a valid write takes place. Features include a range bit for easy interfacing to almost any impedance resistor divider, and an open-drain GPO output for controlling the Run or Enable pin of the DC/DC regulator. For most applications, the current DAC error is significantly attenuated with proper design. See more detail about VOUT accuracy in the Applications Information section of this data sheet. The LTC7106 is supported by the ADI LTpowerPlay? development tool with graphical user interface (GUI).Applications General Purpose Power Systems Telecom Systems Industrial Applications

The LTC4041 is a complete supercapacitor backup system for 2.9V to 5.5V supply rails. It contains a high current step-down DC/DC converter to charge a single supercapacitor or two supercapacitors in series. When input power is unavailable, the step-down regulator operates in reverse as a step-up regulator to backup the systemoutput from the supercapacitor(s).The LTC4041?s adjustable input current limit function reduces charge current to protect the input supply from overload while an external disconnect switch isolates theinput supply during backup. When the input supply drops below the adjustable PFI threshold, the 2.5A boost regulator delivers power from the supercapacitor to the systemoutput.An optional input overvoltage protection (OVP) circuit protects the LTC4041 from high voltage damage at the VIN pin. An internal supercapacitor balancing circuit maintainsequal voltages across each supercapacitor and limits the maximum voltage of each supercapacitor to a pre-determined value. The LTC4041 is available in a low profile (0.75mm) 24-Lead 4mm ? 5mm QFN package.ApplicationsRide-Through ?Dying Gasp? SuppliesHigh Current Ride-Through 3V to 5V UPSPower Meters/Industrial AlarmsServers/Solid State Drives