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12 pcs
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12 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The MAX786CAI+ is a system-engineered power-supply controller from Analog Devices / Maxim Integrated, suitable for notebook computers and similar battery-powered devices. It integrates two high-performance step-down (buck) pulse-width modulators (PWMs) for +3.3V and +5V outputs, along with dual low-dropout, micropower linear regulators for CMOS/RTC back-up. Two precision low-battery-detection comparators are also included.
This controller achieves high efficiency, up to 95% at 2A and greater than 80% at loads from 5mA to 3A, through synchronous rectification and Idle Mode™ operation. It operates at high frequencies (300kHz/200kHz) allowing for physically small components and output filter capacitors as small as 30µF per ampere of load. The MAX786CAI+ features excellent line- and load-transient responses and a high 60kHz unity-gain crossover frequency.
Designed for low system cost, it utilizes a high level of integration and low-cost, external N-channel MOSFETs. Other features include low-noise, fixed-frequency PWM operation and a synchronizable oscillator for noise-sensitive applications. The device is a monolithic BiCMOS IC available in a compact 28-SSOP package.
Applications include Notebook Computers, Portable Data Terminals, Communicating Computers, and Pen-Entry Systems. The MAX786CAI+ supports fixed output voltages of 3.3V (standard), 3.45V (High-Speed Pentium™), and 3.6V (PowerPC™).
| Qty | Low | High |
|---|---|---|
| 1+ | $0.30 | $0.30 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 5.5V to 30V.
Fixed output voltages of 3.3V (standard), 3.45V (for High-Speed Pentium), and 3.6V (for PowerPC).
The operating temperature range is 0°C to 70°C.
The MAX786CAI+ is available in a 28-pin SSOP package (0.209" body width, 5.30mm width) for surface mount mounting.
Efficiency is up to 95% at 2A load, and greater than 80% from 5mA to 3A.
The device has four outputs: two synchronous buck converters and two LDO linear regulators.
Typical quiescent current is 420µA, dropping to 70µA in standby mode with linear regulators still active.