特性
- Electrically screened to DLA 5962-02503
- QML qualified per MIL-PRF-38535 requirements
- Latch-up immune DI process
- Wide input voltage range: -3V to -30V
- Nominal output voltage range: -2.25V to -26V
- Line regulation: ±25mV (maximum)
- Load regulation: ±12mV (typical); ±15mV (maximum)
- Dropout voltage (100mA): 0.2V (typical); 0.3V (maximum)
- Dropout voltage (1A): 1V (maximum)
- Minimum load current: 3.0mA
- 5V-12V TTL input-level shutdown (SD); low or floating = on; high = off
- Operating temperature range: -55°C to +125°C
- Radiation acceptance testing
- HDR (50-300rad(Si)/s): 300krad(Si)
- SEE hardness (see SEE report for details)
- SEL/SEB LETTH (VS = -30V): 86.4MeV•cm2/mg
描述
The ISL72991RH is a radiation hardened low-dropout adjustable negative regulator with an output voltage range of -2.25V to -26V. The device features a 1A output current capability, an adjustable current limit pin (ILIM), and a shutdown pin (SD) for easy on/off control. This regulator incorporates unique circuitry that enables precision performance across the -55°C to +125°C temperature range and post-irradiation. Specifications across the full temperature range include an internal reference voltage of -1.25V +40mV/- 50mV (maximum), line regulation of ±25mV (maximum), and load regulation of ±15mV (maximum). The reference voltage is the ADJ to GND voltage. Constructed with Renesas' dielectrically isolated Rad Hard Silicon Gate (RSG) BiCMOS process, these devices are immune to single event latch-up and have been specifically designed to provide highly reliable performance in harsh radiation environments.
产品参数
| 属性 | 值 |
|---|---|
| Rating | Space |
| IOUT (A) | 1 |
| Supply Voltage (min) (V) | -30 - -30 |
| Supply Voltage (max) (V) | -3 - -3 |
| Input Voltage (Min) (V) | -3 |
| Input Voltage (Max) (V) | -30 |
| VDO @ IOUTMAX (Typ) (mV) | 1000 |
| VOUT (min) (V) | -26 |
| VOUT (max) (V) | -2.25 |
| Temp. Range (°C) | -55 to +125°C |
| TID HDR (krad(Si)) | 300 |
| TID LDR (krad(Si)) | Report Available |
| DSEE (MeV·cm2/mg) | 86.4 |
| Flow | RH Hermetic |
| Qualification Level | Class Q, Class V, EM |
| Die Sale Availability? | Yes |
| PROTO Availability? | Yes |
应用
- Post Switching Power Supplies
- DC/DC Converters
- Motor Controllers
Renesas Boards & Kits
Radiation Hardened Low-Dropout (LDO) Adjustable Negative Voltage Regulator Evaluation Board
The ISL72991RHEVAL2Z evaluation platform showcases the ISL72991RH, a radiation hardened, low-dropout adjustable negative voltage regulator with an output voltage range of -2.25V to -26V. The device features a 1A output current capability, an adjustable current limit pin (ILIM), and a shutdown... 阅读详情
