ISL70003ASEH中文资料Radiation and SEE Tolerant 3V to 13.2V, 9A Buck Regulator数据手册Renesas规格书

描述 Description

The ISL70003ASEH is an improved version of the ISL70003SEH regulator with both tighter load regulation (DS(ON) MOSFETs makes this monolithic solution highly efficient. Also, a tightly regulated output voltage is possible, which is externally adjustable from 0.6V to ~90% of the input voltage. Continuous output load current capability is 9A for TJ ≤+125°C and 6A for TJ ≤+150°C.The ISL70003ASEH uses voltage mode control architecture with feed-forward and switches at a selectable frequency of 500kHz or 300kHz. Loop compensation is externally adjustable to allow for an optimum balance between stability and output dynamic performance.The device features two logic-level disable inputs that can be used to inhibit pulses on the phase (LXx) pins to maximize efficiency based on the load current. The ISL70003ASEH also supports DDR applications and contains a buffer amplifier for generating the VREF voltage.High integration, best in class radiation performance, and a feature-filled design make the ISL70003ASEH an ideal choice to power many of today's small form-factor applications.

特性 Features

•
• ±1% reference voltage over line, temperature, and radiation
• 95% peak efficiency
• Supports DDR applications (VTT tracks VDDQ/2)
• 3A current sinking capability
• IMON pin for output current monitoring
• Diode emulation for increased efficiency at light loads
• Monotonic start-up into prebiased load
• TA = -55°C to +125°C
• Radiation tolerance
• Low dose rate (0.01rad(Si)/s): 100krad(Si)* * Limit established by characterization.
• SEB and SEL LETTH: 86.4MeV•cm2/mg
•cm2/mg: OUT
•cm2/mg
• Electrically screened to DLA SMD 5962-14203

应用 Application

• FPGA, CPLD, DSP, CPU core, and I/O supply voltages
• Low-voltage, high-density distributed power systems