特性
- Acceptance tested to 50krad(Si) (LDR) wafer-by-wafer
- ±1% reference voltage over line, temperature, and radiation
- Integrated MOSFETs 31mΩ PFET/21mΩ NFET; 95% peak efficiency
- Externally adjustable loop compensation
- Supports DDR applications (VTT tracks VDDQ/2)
- Grounded lid eliminates charge buildup
- IMON pin for output current monitoring
- Adjustable analog soft-start
- Diode emulation for increased efficiency at light loads
- 500kHz or 300kHz operating frequency
- Monotonic start-up into prebiased load
- Full military temperature range operation
- TA = -55°C to +125°C
- TJ = -55°C to +150°C
- Radiation acceptance (See TID report)
- High dose rate (50-300rad(Si)/s): 100krad(Si)
- Low dose rate (0.01rad(Si)/s): 50krad(Si)
- SEE hardness (See SEE report)
- SEB and SEL LETTH: 86.4MeV•cm2/mg
- SET at LET 86.4MeV•cm2/mg: < ±3% ΔVOUT
- SEFI LETTH: 60MeV•cm2/mg
- Electrically screened to DLA SMD 5962-14203
描述
The ISL70003ASEH is an improved version of the ISL70003SEH regulator with both tighter load regulation (<0.3% typical) and a higher output current rating of 9A. Operating over an input voltage range of 3.0V to 13.2V with integrated low rDS(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 a 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.
产品参数
| 属性 | 值 |
|---|---|
| Rating | Space |
| Control Mode | Voltage Mode |
| IOUT Rail 1 (max) (A) | 9 |
| No-Load Operating Current | 80 mA |
| Outputs (#) | 1 |
| Quiescent Current | 1.5mA |
| Supply Voltage Rail 1 (min) (V) | 3 |
| Supply Voltage Rail 1 (max) (V) | 13.2 |
| Switching Frequency (min) (kHz) | 300kHz, 500kHz |
| Switching Frequency (max) (kHz) | 300kHz, 500kHz |
| VOUT Rail 1 (min) (V) | 0.6 |
| VOUT Rail 1 (max) (V) | 11.88 |
| Temp. Range (°C) | -55 to +125°C |
| TID HDR (krad(Si)) | 100 |
| TID LDR (krad(Si)) | 100 |
| DSEE (MeV·cm2/mg) | 86, 86.4 |
| Flow | RH Hermetic |
| Qualification Level | Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
应用方框图
 | 抗辐射 Versal 电源树 一款采用 AMD Versal 的卫星应用抗辐射电源。 |
其他应用
- FPGA
- CPLD
- DSP
- CPU core
- And I/O supply voltages
- DDR memory supply voltages
- Low-voltage
- High-density distributed power systems
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