Using LTM8031 integrated circuit, manufactured by linear technology, can be designed a very simple high efficiency dc dc converter circuit. This LMT8031 dc voltage converter circuit will provide a 5 volts output from a wide input voltage range between 7 and 36V dc. The switching frequency range of LTM8031 is from 200kHz to 2.4MHz which can be set by a single resistor. To finish the design of the LTM8031 are needed only the bulk input and output filter capacitors . Main features of this ic based dc converter project are: Complete Step-Down Switch Mode Power Supply , Wide Input Voltage Range: 3.6V to 36V , 1A Output Current , 0.8V to 10V Output Voltage , Switching Frequency from 200kHz to 2.4MHz , EN55022 Class B Compliant , Current Mode Control. Maximum output current of this circuit is around 1A.
LTM8031 – 5v 1A DC/DC μModule Regulator - [Link]
The LTM4644 is a quad DC/DC step-down μModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, power FETs, inductors and support components – only bulk input and output capacitors are needed. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644 supports an output voltage range of 0.6V to 5.5V each set by a single external resistor. The LTM4644 is offered in 9mm ×15mm × 5.01mm BGA package.
LTM4644 – quad DC/DC step-down μModule regulator with 4A per output - [Link]
Linear Technology have announced the LTM4624 14V, 4A step-down µModule® (micromodule) regulator in a 6.25 x 6.25 x 5.01mm BGA package. Along with two (1206 package) ceramic capacitors and a (0603 or smaller package) resistor this complete regulator solution fits within 1cm² on a single-sided or 0.5cm² on a double-sided PCB. Like other µModule regulators in the range, the LTM4624 contains the DC/DC controller, power switches, inductor and compensation on-board. It is designed to operate from a 4V to 14V input supply, delivering a regulated output adjustable between 0.6V to 5.5V which according to Linear Technology make it ideal for applications in communications, storage, industrial, and medical systems. [via]
4A Step Down µModule in less than 1cm² - [Link]
The LTM4641 is a 4.5V to 38V input, 0.6V to 6V output, 10A step-down μModule regulator with comprehensive input and load protection features. The part monitors input voltage, output voltage and temperature conditions. If any user-adjustable trip thresholds are exceeded, the LTM4641 responds quickly (within 500ns in the case of an output overvoltage fault), ceasing operation and if necessary activating external switches to protect both input source and load. As a μModule regulator, the LTM4641 includes power MOSFETs, DC/DC controller, inductor, compensation and the protection logic circuits in a compact surface mount BGA package.
- Wide Operating Input Voltage Range: 4.5V to 38V
- 10A DC Typical, 12A Peak Output Current
- Output Range: 0.6V to 6V
- ±1.5% Maximum Total Output DC Voltage Error
- Differential Remote Sense Amplifier for POL Regulation
- Internal Temperature, Analog Indicator Output
LTM4641 – 38V, 10A DC/DC µModule Regulator with Advanced Input and Load Protection - [Link]
The LTM2883 is a 6-channel SPI/Digital or I2C digital μModule isolator with triple rail regulated power for 3.3V and 5V systems. In industrial systems applications, ground potentials can vary widely, often exceeding the tolerable range, which can interrupt communications or even destroy components. The LTM2883 breaks ground loops by electrically separating communications signals, isolating the logic level interface on each side of an internal inductive isolation barrier that withstands a very large common-mode voltage range up to 2,500VRMS. The LTM2883′s low EMI isolated DC-DC converter powers the communications interface and provides adjustable 5V, +12.5V, and -12.5V supply outputs, ideal for powering data converters in data acquisition systems. With 2,500VRMS of galvanic isolation, onboard secondary power and a communications interface operating at up to 20Mbps, the LTM2883 requires no external components and provides a simple μModule solution for isolated data communications.
LTM2883 – SPI/Digital or I2C μModule Isolator with Adjustable Regulated Power - [Link]
The LTM4620 is a dual 13A per output (or single 26A output) DC/DC μModule step-down regulator that delivers up to 100A when four devices are current shared. The LTM4620 is a complete DC/DC regulator system in a 15mm x 15mm x 4.41mm LGA package, including inductors, power stages and all control circuits. For optimum heat dissipation, an integrated top side heat sink removes heat quickly and evenly.
LTM4620 – Dual 13A or Single 26A DC/DC µModule Regulator with integrated heatsink - [Link]
- Complete Step-Down Switch Mode Power Supply
- Constant-Voltage Constant-Current Operation
- Selectable Output Current Up to 5A
- Parallelable for Increased Output Current, Even from Different Voltage Sources
- Wide Input Voltage Range: 6V to 36V
- 1.2V to 24V Output Voltage
- Selectable Switching Frequency: 100kHz to 1MHz
- (e4) RoHS Compliant Package with Gold Pad Finish
- Programmable Soft-Start
- Tiny, Low Profile (11.25mm × 15mm × 2.82mm) Surface Mount LGA Package
LTM8026 – 36Vin, 5A CVCC Step-Down µModule Regulator - [Link]
The LTM®4600 is a complete 10A switchmode step-down power supply with a built-in inductor, supporting power components and compensation circuitry. With high integration and synchronous current mode operation, this DC/DC µModuleTM delivers high power at high efficiency in a tiny and low profile surface mount package. Supported by Linear Technology’s rigorous testing and high reliability processes, the LTM4600 simplifies the design and layout of your next power supply.
- 15mm x 15mm x 2.8mm LGA with 15°C/W θJA
- Pb-Free (e4), RoHS Compliant
- Only CBULK Required
- Standard and High Voltage:
* LTM4600EV: 4.5V<=VIN<=20V
* LTM4600HVEV: 4.5V<=VIN<=28V
- IOUT: 10A DC, 14A Peak
- Parallel Two µModules for 20A Output
LTM4600 – 10A switchmode step-down power supply with a built-in inductor - [Link]