Overview
Description
The RAA221320 is a Smart Power Stage (SPS) compatible with the ISL68xxx/69xxx Digital Multiphase (DMP) controllers. The SPS has integrated high-accuracy current and temperature monitors that are fed back to the controller to complete a multiphase DC/DC system. These monitors simplify design and increase performance by eliminating the DCR sensing network and associated thermal compensation. An industry-leading thermally enhanced 4x5 PQFN package allows minimal overall PCB real estate.
The SPS features a 3.3V compatible tri-state PWM input that works together with the Renesas multiphase PWM controllers to provide a robust solution in abnormal operating conditions. The SPS also improves system performance and reliability with integrated fault protection of UVLO, shorted HFET, over-temperature, and overcurrent. An open-drain fault reporting pin simplifies the handshake between the SPS and controllers and can disable the controller during startup and fault conditions.
Features
- Input range: +3.0V to +16V
- Supports 20A DC current
- 3.3V compatible tri-state PWM input
- Downslope current sensing
- ±3% accuracy current monitor (IMON) with REFIN input
- 8mV/°C temperature monitor with OT flag
- Comprehensive fault protection for high system reliability
- Shorted HFET and overcurrent protection
- Over-Temperature Protection (OTP)
- VCC Undervoltage Lockout (UVLO)
- Fault reporting outputs (TMON, Fault#, and IMON)
- Up to 1.5MHz switching frequency
- Pb-free (RoHS compliant), 25 Ld 4 x 5 PQFN
Comparison
Applications
- High-frequency and high-efficiency VRM and VRD
- Core, graphic, and memory VRs for microprocessors
- High-density VR for server, networking, and cloud computing
- POL DC/DC converters and video gaming consoles
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet - Short-form | PDF 100 KB | |
| Datasheet | PDF 1.52 MB | |
| Product Advisory | PDF 271 KB | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
RAA221320RGNP#HB0 Active Samples Available |
PQFN | Reel | 3 | Get Samples, |
RAA2213204GNP#HB0 Active Samples Available |
PQFN | Reel | 3 | Get Samples, |
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