概览
描述
The ISL73002SEH is a radiation hardened and SEE hardened high-efficiency monolithic, synchronous buck regulator with integrated MOSFETs. This single-chip power solution operates over an input voltage range of 3V to 5.5V and provides a tightly regulated output voltage that is externally adjustable from 0.8V to ~85% of the input voltage. Output load current capability is primarily determined by PVIN voltage with up to 22A for a single IC at PVIN ≤ 5.5V for TJ ≤ +125 °C. Two ISL73002SEH devices, configured to current share, can provide up to 38A of total output current at PVIN ≤ 5.5V for TJ ≤ +125 °C assuming ±27% worst-case current share accuracy. The ISL73002SEH uses peak current-mode control with integrated error amp compensation and pin-selectable slope compensation. The switching frequency is also pin selectable to either 1MHz or 500kHz. Two devices can be synchronized 180° out-of-phase to reduce input RMS ripple current. High integration makes the ISL73002SEH an ideal choice to power small form factor applications. Two devices can be synchronized to provide a complete power solution for large-scale digital ICs, like field-programmable gate arrays (FPGAs) that require separate core and I/O voltages.
特性
- DLA SMD 5962-12202
- Maximum output current (Single Phase):
- 22A with external Schottky (TJ ≤ 125 °C, PVIN ≤ 5.5V)
- 18A (TJ ≤ 125 °C, PVIN ≤ 5.5V)
- 14A (TJ ≤ 125 °C, PVIN ≤ 6.2V)
- 12A (TJ ≤ 150 °C, PVIN ≤ 6.2V)
- Maximum output current (Dual Phase)
- 38A (27% worst case current sharing)
- 1MHz or 500kHz switching frequency
- 3V to 6.2V supply voltage range
- ±1% reference voltage (line, load, temperature, and rad)
- Redundancy/Junction isolation: Exceptional SET performance
- Excellent transient response
- High efficiency >90%
- Two ISL73002SEH synchronization, inverted-phase
- Comparator input for enable and power-good
- Input undervoltage, output undervoltage, and adjustable output overcurrent protection
- QML qualified per MIL-PRF-38535
- Full military temperature range operation (-55 °C to +125 °C)
- Radiation environment
- LDR (0.01rad(Si)/s): 50krad(Si)
- SEE hardness
- SEL and SEB LETTH 86.4MeV/mg/cm2
- SEFI LETTH 43MeV/mg/cm2
- SET LETTH 86.4MeV/mg/cm2
产品对比
应用
设计和开发
软件与工具
软件与工具
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Software type
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| iSim:PE 离线模拟工具 iSim Personal Edition（iSim:PE ）可加快设计周期并降低项目早期风险，确定可用于当前和下一代设计的部件。
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Simulator | 瑞萨电子 |
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开发板与套件
评估
Differential Remote Sensing Evaluation Board
The ISL70002SEHEVAL3Z evaluation board is designed to demonstrate the features of the ISL70002SEH or ISL73002SEH, TID and SEE hardened 22A synchronous buck regulator ICs with integrated MOSFETs intended for space applications.
The ISL70002SEHEVAL3Z is similar to the ISL70002SEHEVAL1Z, but...
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演示
Power Management Reference Design for AMD Versal XQRVC1902
The ISLVERSALDEMO2Z demo board provides the power management for the AMD Xilinx Space Grade Versal ACAP AI Core VC1902 using Renesas' Radiation Hardened Power Management devices. The Versal ACAP system requires various supply rails, including the core, digital, analog, and DDR memory. The...
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评估
Dual Phase Solution Capable of 19A Max Load Current Share and Max Load Current of 19A
The ISL70002SEHEVAL1Z evaluation board is designed to evaluate the features of the ISL70002SEH radiation hardened and SEE hardened 22A synchronous buck regulator IC with integrated MOSFETs in a dual regulator current sharing configuration. The ISL70002SEHEVAL1Z can be operated up to 19A of load...
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评估
Single Phase Solution Capable of 12A Max Load Current
The ISL70002SEHEVAL1Z evaluation board is used to evaluate the features of the ISL70002SEH radiation hardened and SEE hardened 22A synchronous buck regulator IC with integrated MOSFETs that is intended for space applications. The ISL70002SEHEVAL1Z can be operated up to 19A of load current.
Recommended Documents:
演示
Dual Phase Solution Capable of 19A Max Load Current Share and Max Load Current of 38A
The ISL70002SEHDEMO1Z demonstration board shows the ISL70002SEH radiation hardened and SEE hardened high-efficiency monolithic, synchronous buck regulator in a dual current sharing configuration to 38A of output current.
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参考设计
Renesas Rad Hard Power Management Reference Design for AMD's Space Grade XQRKU060
Over the last decade, satellites and spacecraft have seen an exponential increase in the need for onboard data processing and storage demands. Additionally, major satellite manufacturers have recently announced their latest satellites to be modular, fully digital, and capable of in-orbit...
参考设计
Renesas Radiation Hardened Power Solution for RTG4 FPGA
Over the last decade, satellites and spacecraft have seen an exponential increase in the need for onboard data processing and storage demands. Additionally, major satellite manufacturers have recently announced their latest satellites to be modular, fully digital, and capable of in-orbit...
参考设计
Rad Hard Vitex 5 FPGA Power Solution Reference Design
Renesas offers a complete solution for powering radiation hardened FPGAs. Many space-grade FPGAs require a core voltage of 1.0V, which is supplied by the ISL70002SEH, an auxiliary voltage of 2.5V, which is supplied by the ISL70001SEH, and an I/O voltage of 3.3V which is supplied by the
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