Innovative Power Management and Precision Solution Leading Supplier Intersil today announced today, its market leading lifting pressure and boost switch regulator product series ISL911XX added five members --- ISL91106, ISL91107 and ISL91132, ISL91133, ISL91134 . They are most suitable for providing a stable power supply support to the system power supply and peripheral components in the handheld device, such as supplying Wi-Fi or 3G / 4G RF power amplifier. INTERSIL's special four-switch buck-boost architecture extends battery life and smooth transition from buck mode to boost mode by reaching 96% of industry-leading efficiency, to prevent smartphones, tablets and other single-core lithium ions Voltage fluctuations and noise in lithium polymer battery power supply systems.
ISL9110X buck-boost regulator product line only requires ultra-small inductors and capacitors to take up less than 14mm2 circuit board area, which makes them an ideal 2A switching converter solution suitable for mobile devices that are very limited space. Advanced wafer-level CSP packages, only one inductor and very few peripheral components are the industry's smallest overall solutions. The 2.5MHz switching frequency of the ISL911xx regulator can further reduce the size of the power solution.
New ISL91106 and ISL91107 buck-boost regulator provides a wide input voltage range (1.8V - 5.5V) and integrated transient response than twice the 3.6A switch faster than the closest competitor. This type of lifting pressure regulator can make the mobile device work normally during the instantaneous large current pulse and is not affected by the voltage fluctuation. 2A Output Current capability allows the system to work reliably under all load conditions, while only occupying a small PCB area, is a higher efficiency power supply scheme. Unlike the buck-boost regulator of the competitor, the product can automatically switch between the bypass and buck-boost mode of operation when the input voltage is close to the output voltage without output fluctuations. This can maximize the efficiency of the system. When sleep mode, ISL91106 also includes optional forced bypass functions or ultra low power modes to provide a power supply requirement for maintaining systems close to zero.
The new ISL91132, ISL91133 and ISL91134 high-efficiency boost regulator provide similar optimal real pass-through features, which can be used to input voltages that may be higher or lower than any single lithium battery power supply of the target output voltage. ISL91132 (>1.8a) and ISL91133 (>2.3a) provide a stable output voltage required to provide critical system functions when the input battery voltage has undergone significant transients. The low static current can significantly reduce standby power consumption. ISL91134 (>1.8a) Regulator's soft start slope control characteristics and boost to 5V application, making it ideal for use with D-audio amplifiers. All three boost regulators support auto-passing modes or forced straight through a selection pin.
"Intersil's power management innovation is closely complex design requirements for each new high-power mobile device", Andrew Cowell, senior vice president of mobile power products, "New ISL911XX buck-boost and boost switch regulator Our proprietary technology is designed to be highly integrated and high-performance power management solutions, which can significantly extend the battery life of smartphones and tablet products. "
ISL91106 and ISL91107 antihypertensive - main features and specifications of boost regulator:
Ultra high efficiency of 96%; Ultra-small PCB occupation area of about 14mm2
1.8V - 5.5V wide input voltage range, 1V - 5.2V can adjust the output voltage range, or fixed 3.3V output
Micro 2.15mm x 1.51mm WLCSP package, suitable for limited space limited mobile devices
2.5MHz High Frequency Work Allows the use of smaller components
Output current up to 2A DC (PVIN = 2.8V, Vout = 3.3V)
For PFM ripple and frequency variation sensitive applications, mode selection allows forced pulse width modulation (PWM)
Comprehensive protection against undervoltage, short circuit and thermal fault
Main features and specifications of ISL91132, ISL91133 and ISL91134 boost + bypass regulator:
Ultra high efficiency of 96%
Real bypass features, 27MΩ impedance
Supporting multiple chemical batteries from 2.35V - 5.4V input voltage range to 3.15V - 5.2V output voltage range
Micro 1.78mm x 1.78mm WLCSP package, suitable for mobile equipment for limited space
Optional or automatic bypass mode
The VSEL feature allows the system to increase the output voltage in the event of a large system load to provide optimal system efficiency and stability.
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Supply and pricing
The antihypertensive-boost switch regulator is now available, and the product is 1.90 US dollars, 1,000 pieces. ISL91132, ISL91133 and ISL91134 boost + bypass regulator have also been supplied, and the product is 1.80, 1,000 pieces.
For more information about ISL91106, ISL91107, ISL91132, ISL91133 and ISL91134 switching regulators and evaluation board, please visit http://www.intersil.com/isl911xx-buck-boost-regulators
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