MaxLinear's XR76208-Q is a synchronous step-down regulator combining the controller, drivers, bootstrap diode, and MOSFETs in a single package for point-of-load supplies well suited for automotive applications. Qualified per AEC-Q100, the XR76208-Q has a load current rating of 8 A. A wide 5.5 V to 40 V input voltage range allows for single-supply operation from industry standard 24 V ±10%, 18 V to 36 V, and rectified 18 VAC and 24 VAC rails, and 12 V battery systems requiring inherent load dump protection.
With a proprietary emulated current mode constant on-time (COT) control scheme, the XR76208-Q provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation, simplifying circuit implementation and reducing overall component count. The control loop also provides 0.07% load and 0.15% line regulation and maintains constant operating frequency. A selectable power saving mode allows the user to operate in discontinuous conduction mode (DCM) at light current loads thereby significantly increasing the converter efficiency.
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- Automotive AEC-Q100 qualified
- Temperature Grade 1: -40°C to +125°C
- HBM ESD Class Level 2
- CDM ESD Class Level C4B
- 8 A step-down regulator
- Wide 5.5 V to 40 V input voltage range
- ≥0.6 V adjustable output voltage
- Proprietary constant on-time control
- No loop compensation required
- Stable ceramic output capacitor operation
- Programmable 200 ns to 2 µs on-time
- Constant 100 kHz to 800 kHz frequency
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- Controller, drivers, bootstrap diode, and MOSFETs integrated in one package
- CCM/DCM for high efficiency at light load
- CCM for constant frequency at light load
- Programmable hiccup current limit with thermal compensation
- Precision enable and power-good flag
- Programmable soft-start
- 30-pin 5 mm x 5 mm QFN package with wettable flanks
- Pin compatible, AEC-Q100 qualified 5 A regulator, XR76205-Q
- Pin compatible, AEC-Q100 qualified 3 A regulator, XR76203-Q
- Selectable CCM or CCM/DCM
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| Applications |
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- Automotive systems
- Infotainment head units
- Advanced driver assistance systems (ADAS)
- Distributed power architecture
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- Point-of-load converters
- Power supply modules
- FPGA, DSP, and processor supplies
- Industrial and military applications
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MaxLinear's XR76208-Q is a synchronous step-down regulator combining the controller, drivers, bootstrap diode, and MOSFETs in a single package for point-of-load supplies well suited for automotive applications. Qualified per AEC-Q100, the XR76208-Q has a load current rating of 8 A. A wide 5.5 V to 40 V input voltage range allows for single-supply operation from industry standard 24 V ±10%, 18 V to 36 V, and rectified 18 VAC and 24 VAC rails, and 12 V battery systems requiring inherent load dump protection.
Taiwan