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Texas Instruments TPS650250RHBR | Demoboard TIDA-010011
Configurable integrated power management (PMIC) with 3 DC/DC converters and 3 LDOs
Overview
| Topology | Buck Converter |
| Input voltage | 5 V |
| Switching frequency | 1950-2550 kHz |
| Output 1 | 1.1 V |
| IC revision | E1 |
Description
This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are generated using DC-DC converters with an integrated FET and a power module with an integrated inductor for size. The design features a HotRod™ package type for applications requiring low EMI. It is also optimal for design time constrained applications. Additional features include DDR termination regulator, input supply OR-ing, voltage sequencing, eFuse for overload protection, and voltage and load current monitoring. This design can be used with a processor, digital signal processor and field-programmable gate array. It has been tested for radiated emission, per CISPR22 meeting class A and B requirements.
Features
- 1.6 A, 97% Efficient Step-Down Converter for System Voltage (VDCDC1)
- 3.3 V, 2.8 V, or Adjustable
- 0.8 A, up to 95% Efficient Step-Down Converter for Memory Voltage (VDCDC2)◦1.8 V, 2.5 V, or Adjustable
- 0.8 A, 90% Efficient Step-Down Converter for Processor Core (VDCDC3)
- Adjustable Output Voltage on VDCDC3
- 30-mA LDO for Vdd_alive
- 2 × 200 mA General-Purpose LDOs (LDO1 and LDO2)
- Dynamic Voltage Management for Processor Core
- LDO1 and LDO2 Voltage Externally Adjustable
- Separate Enable Pins for Inductive Converters
- 2.25-MHz Switching Frequency
- 85-µA Quiescent Current
- Thermal Shutdown Protection
Typical applications
- Cellular, Smart Phones / Digital Still Cameras
- GPS
- Split Supply DSP and μP Solutions / Samsung ARM-Based Processors
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | L(µH) | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | RDC max.(mΩ) | fres(MHz) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WL-SMCW SMT Mono-color Chip LED Waterclear, 570 nm, Bright Green | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | Dominant Wavelength [typ.]570 nm | Emitting ColorBright Green | Peak Wavelength [typ.]572 nm | Luminous Intensity [typ.]40 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | – | – | – | MountSMT | ||||
 | WE-LHMI SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LHMI SMT Power Inductor | – | – | – | – | – | – | – | Inductance1.5 µH | Performance Rated Current4.9 A | Saturation Current @ 10%5.65 A | Saturation Current @ 30%10.1 A | DC Resistance42 mΩ | Self Resonant Frequency64 MHz | MountSMT |