AEC-Q100 qualified 2.5-A buck regulator operates during cold crank conditions
Loss of regulation due to drooping input voltage is a common problem in automotive applications. Such input dropouts – commonly called ‘cold crank’ conditions – occur when starting a car in cold conditions, but can now occur in vehicles with start-stop operation.
The ISL78200 is a synchronous buck/pre-boost IC that automatically activates a pre-boost stage when required to maintain output regulation. It integrates a low side MOSFET driver along with a 90 milliohm high side MOSFET. The ISL78200 can accommodate a wide input voltage range of 3 V to 40 V while supplying a regulated 5 V, 2.5 A output at 85 degrees C without heat sinking. The combination of input voltage pre-boosting and step-down regulation with a low 180 uA quiescent current makes the ISL78200 ideal for a wide range of automotive power applications.
Also available now from Intersil is the ISL78205, a similar regulator that does not provide pre-boost capabilities. Like the ISL78200, it is designed for full 2.5 A output at 85 degrees C, and can be used for general purpose power regulation and 24V bus power applications.
Availability and Pricing
The ISL78200 and ISL78205 are available in 20-pin HTSSOP packages with pricing at $0.98 and $0.88 each, respectively, in 50,000-unit quantities.
More information about the ISL78200 and ISL78205 step-down regulators at www.intersil.com/products/deviceinfo.asp?pn=ISL78200
- KIT, Schaeffler optimise power steering for electric cars
- Automatically-compensated digital PoL controller matches analogue loop performance
- Europe leads PV uptake charts as global growth continues
- Smart power switch replaces discretes in powertrain and automotive body electronics
- UK becomes only bright spot in Europe's solar market
- Intepro expands to support growth plans
- Ultra-low-power 32-bit MCU platform targets industrial and IoT applications
- Is UK Government cutting solar subsidies too soon?
- Bluetooth Smart SoC family targets wireless charging for IoT
- Linear adds micro-module regulators with 60V/4A & 36V/8A buck-boost types
- micro-PMIC provides integrated power management for wearable devices
- Software simulation of ST power devices, by free download tool
- Bosch CEO predicts cheaper batteries, networked traffic
- 150V diodes combine switching speed and softness
- Extended temperature MOSFETs offer power density benefits
- High efficiency resonant mode implementation using digital control
- A simple method for determining the optimal operating point of an LED
- WPT breaks all connections, Part 1
- Can Dyson clean up in the battery sector?
- Data-acquisition: The key to a smart electrical grid
- IKEA and Samsung back Qi wireless charging advance
- Revealed - The real impact of battery bounce testing
- Will energy-saving lightbulb become graphene's first commercial success?
- Solar-powered plane completes first leg of global record attempt
- Solar plane passes new test ahead of planned world tour
- Real-time power GaN waveform monitoring
- Lithium battery shipments on passenger planes face ban
- Lithium storage principle offers higher energy storage densities
- Advantages of power blocks for high-current POLs
- Cheaper ultrathin perovskite solar cells target commerical viability
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- Investigating Die attach Failure in IGBTs using Power Cycling Tests
- Power Systems Design eBook
- Wireless Power User Guide
- A Novel Approach to Industrial Rectifier Systems
- Smartphone SoC Power Efficiency - DVFS Capacitor Switching