ISL70001SEH
Rad Hard and SEE Hard 6A Synchronous Buck Regulator
Key Features
- ±1% Reference Voltage Over Line, Load, Temperature and Radiation
- Current Mode Control for Excellent Dynamic Response
- Full Mil-Temp Range Operation (TA = -55°C to +125°C)
- High Efficiency > 90%
- Fixed 1MHz Operating Frequency
- Operates from 3V to 5.5V Supply
- Adjustable Output Voltage - Two External Resistors Set VOUT from 0.8V to ~85% of VIN
- Bi-directional SYNC Pin Allows Two Devices to be Synchronized 180°
Out-of-Phase - Device Enable with Comparator Type Input
- Power-Good Output Voltage Monitor
- Adjustable Analog Soft-Start
- Input Undervoltage, Output Undervoltage and Output Overcurrent Protection
- Starts Into Pre-Biased Load
- Electrically Screened to DLA SMD 5962-09225
- QML Qualified per MIL-PRF-38535 Requirements
- Radiation Hardness - Total Dose [50-300rad(Si)/s]: 100krad(Si) min - Total Dose [<10mrad(Si)/s]: 50krad(Si) min
- SEE Hardness - SEL and SEB LETeff: 86.4MeV/mg/cm2 min - SEFI X-section (LETeff = 86.4MeV/mg/cm2) 1.4 x 10-6 cm2 max - SET LETeff (< 1 Pulse Perturbation) 86.4MeV/mg/cm2 min
Description
The ISL70001SEH 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 capacity is 6A for TJ < +145°C.
High integration and class leading radiation tolerance makes the ISL70001SEH an ideal choice to power many of today's 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.
Applications
- FPGA, CPLD, DSP, CPU Core or I/O Voltages
- Low-Voltage, High-Density Distributed Power Systems
