Features
- Flexible power management and efficiency
- Wide input voltage range: 3V to 18V
- Adjustable switching frequency: 300kHz to 1MHz or fixed 500kHz
- Internal or external loop compensation for performance optimization
- High efficiency: ≥ 90% from 1A to 3A at 500kHz
- Advanced control and protection features
- 1% reference voltage accuracy over temperature and radiation
- Positive and negative overcurrent, overvoltage, undervoltage, and over-temperature protection
- Adjustable slope compensation to optimize stability
- Switching frequency-dependent soft-start for controlled power-up
- Radiation tolerant and high-reliability design
- Qualified to Renesas Rad-Tolerant Screening and QCI Flow (R34TB0004EU)
- TID Radiation Lot Acceptance Testing (RLAT) (LDR: 0.01rad(Si)/s)
- ISL73007M30VEZ: 30krad(Si)
- ISL73007M50VEZ: 50krad(Si)
- SEE Characterization
- No DSEE for VIN = 18V and VCC = 6.2V at 46 MeV•cm²/mg
- SEFI < 2.5μm² at 46 MeV•cm²/mg
- SET < 2.0% on VOUT at 46 MeV•cm²/mg
Description
The ISL73007M is a radiation tolerant point-of-load (POL) buck regulator that delivers up to 3A of output current with an input voltage range of 3V to 18V. It features a constant-frequency peak current mode control architecture, ensuring fast transient response and reliable performance. The regulator offers internal or external Type-II compensation, allowing designers to optimize stability and performance based on system requirements.
The ISL73007M supports both a fixed internal 500kHz switching frequency and an externally programmable oscillator, allowing the frequency to be adjusted from 300kHz to 1MHz using a single resistor. This gives designers the flexibility to either use a predefined frequency or fine-tune the switching characteristics to optimize efficiency and performance for their specific application.
The device integrates high-side P-channel and low-side N-channel FETs, reducing external component count and simplifying power stage design. It also includes a comprehensive set of protection features, including preset undervoltage, overvoltage, and overcurrent protections, power-good indication, soft-start, and over-temperature protection.
Designed for high-reliability applications, the ISL73007M operates across a -55°C to +125°C temperature range and is housed in a 28-lead HTSSOP package with an exposed pad heatsink, ensuring efficient thermal performance.
Parameters
| Attributes | Value |
|---|---|
| Rating | Space |
| Control Mode | Peak Current Mode |
| IOUT Rail 1 (max) (A) | 3 |
| No-Load Operating Current | 35 mA |
| Outputs (#) | 1 |
| Quiescent Current | 0.13 |
| Supply Voltage Rail 1 (min) (V) | 3 |
| Supply Voltage Rail 1 (max) (V) | 18 |
| Switching Frequency (min) (kHz) | 300 |
| Switching Frequency (max) (kHz) | 1000 |
| VOUT Rail 1 (min) (V) | 0.6 |
| VOUT Rail 1 (max) (V) | 16 |
| Temp. Range (°C) | -55 to +125 |
| TID LDR (krad(Si)) | 30, 50 |
| DSEE (MeV·cm2/mg) | 46 |
| Flow | RT Plastic |
| Qualification Level | Radiation Tolerant Plastic |
| Die Sale Availability? | No |
| PROTO Availability? | No |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TSSOP-EP | 9.7 x 4.4 x 0.90 | 28 | 0.7 |
Product Comparison
| ISL73007M | ISL70001ASEH | ISL70003ASEH | ISL71001M | ISL73007SEH | |
| Supply Voltage Rail 1 (min) (V) | 3 | 3 | 3 | 3 | 3 |
| Supply Voltage Rail 1 (max) (V) | 18 | 5.5 | 13.2 | 5.5 | 18 |
| Switching Frequency (min) (kHz) | 300 | 1000 | 300, 500 | 1000 | 300 |
| Switching Frequency (max) (kHz) | 1000 | 1000 | 300, 500 | 1000 | 1000 |
| IOUT Rail 1 (max) (A) | 3 | 6 | 9 | 6 | 3 |
Applications
- FPGA, DSP, and MCU power rails
- High-speed data processing and communication systems
- Satellite payload and avionics
Renesas Boards & Kits
Radiation Tolerant Compact 3A Point-of-Load Buck Regulator Evaluation Board
The ISL73007MEVAL1Z evaluation board provides a quick and efficient platform for evaluating the performance of the ISL73007M radiation tolerant buck regulator. Designed for critical low-power applications, the ISL73007M is a compact, high-efficiency Point-of-Load (POL) synchronous buck converter... Read More
Radiation Tolerant DDR4 Power Management Reference Design
The ISLDDR4DEMO1Z is designed to demonstrate a radiation tolerant power management solution for DDR4 memories. The board uses Renesas radiation tolerant (RT) plastic power management devices to supply the required DDR4 VDDQ, VPP, VTT, and VREF power rails, generated by the ISL71001M, ISL73007M,... Read More
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