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Overview
| Topology | Buck Converter |
| Input voltage | 5.5-24 V |
| Switching frequency | 300-1500 kHz |
| Output 1 | 1 V |
| Output 2 | 1.5 V |
| Output 3 | 2.5 V |
| Output 4 | 1.8 V |
| IC revision | 1.1.6 |
Description
The XRP7714 is a quad-output pulse-width modulated (PWM) step-down DC-DC controller with a built-in LDO for standby power and GPIOs. The device provides a complete power management solution in one IC and is fully programmable via an I2C serial interface. Independent Digital Pulse Width Modulator (DPWM) channels regulate output voltages and provide all required protection functions such as current limiting and over-voltage protection.
Each output voltage can be programmed from 0.9V to 5.1V without the need of an external voltage divider. The wide range of the programmable DPWM switching frequency (from 300 KHz to 1.5 MHz) enables the user to optimize between efficiency and component size. Input voltage range is from 4.75V to 25V. An I2C bus interface is provided to program the IC as well as to communicate with the host for fault reporting and handling, power rail parameters monitoring, etc.
The device offers a complete solution including independently programmable: soft-start, soft-stop, start-up delay and ramp of each PWM regulator.
The Exar Model XRP77xxEVB-XCM and XRP77xxEVB-XPM ("Evaluation Board") provides designers with a simple, quick and inexpensive means of evaluating and prototyping new designs using PowerXR devices. This Evaluation Board is designed only for low volume engineering purposes; not production volumes. For production requirements commercial programmers must be used. The Evaluation Board is provided “as is and whereas” and without any warranty as to results, merchantability or purpose. Exar is not responsible for misuse of the Evaluation Board.
Features
- 4 Channel Step Down ControllerProgrammable OutputVoltage 0.9V-5.1VProgrammable1 .5MHz DPWM FrequencyIntegrated FET Drivers
- 4.75V to 5.5V and 5.5V to 25V InputVoltage Range
- Up to 6 Reconfigurable GPIO PinsFully Programmable via I2C Interface
- Independent Digital Pulse WidthModulator (DPWM) channels
- Complete Monitoring and Reporting
- Complete Power Up/Down Sequencing
- Full On Board ProtectionOTP, UVLO, OCP and OVP
- Built-in 3.3V/5V LDO
- PowerArchitect™ Design Software
- Green/Halogen Free 40-pin TQFN
Typical applications
- Multi Channel Power Supplies
- Industrial & Telecom Equipments
- Video Equipments
- Audio Equipments
- Processors & DSPs Based Equipments
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC(mΩ) | fres(MHz) | Material | Qty. | RDC max.(mΩ) | Mount | Pins | Type | L(mm) | H(mm) | IR(A) | Working Voltage(V (AC)) | Operating Temperature | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 9.6 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-HCI SMT Flat Wire High Current Inductor | Inductance1.5 µH | Performance Rated Current9.6 A | Saturation Current @ 10%4.75 A | Saturation Current @ 30%12 A | DC Resistance12.7 mΩ | Self Resonant Frequency80 MHz | MaterialSuperflux | Packaging Unit1500 | DC Resistance13.97 mΩ | MountSMT | Pins2 | – | Length7 mm | Height3 mm | – | – | Operating Temperature -40 °C up to +150 °C | –Check availability | |||
 | SPECWE-LHMI SMT Power Inductor, 2.2 µH, 7.7 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance2.2 µH | Performance Rated Current7.7 A | Saturation Current @ 10%10 A | Saturation Current @ 30%19.1 A | – | Self Resonant Frequency32 MHz | – | Packaging Unit1000 | DC Resistance20 mΩ | MountSMT | – | – | Length7.3 mm | Height2.8 mm | – | – | Operating Temperature -40 °C up to +125 °C | –Check availability | |||
| SPECWE-LHMI SMT Power Inductor, 6.8 µH, 4.45 A | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | Inductance6.8 µH | Performance Rated Current4.45 A | Saturation Current @ 10%5.45 A | Saturation Current @ 30%10.6 A | – | Self Resonant Frequency18 MHz | – | Packaging Unit1000 | DC Resistance60 mΩ | MountSMT | – | – | Length7.3 mm | Height2.8 mm | – | – | Operating Temperature -40 °C up to +125 °C | –Check availability | |||
 | SPECWR-PHD Pin Header - Single, –, – | Simulation– | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | MountTHT | Pins2 | TypeStraight | Length5.08 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | –Check availability | ||
 | SPECWR-PHD Pin Header - Single, –, – | Simulation– | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | – | – | – | – | – | – | – | – | – | MountTHT | Pins3 | TypeStraight | Length7.62 mm | – | Rated Current3 A | Working Voltage250 V (AC) | Operating Temperature -40 °C up to +105 °C | –Check availability |
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |