MAX1771CSA+T
MAX
The MAX1771CSA+T is a step-up DC-DC switching controller from Maxim Integrated. It offers high efficiency and low supply current for battery-powered applications.
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3,000 pcs
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3000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The MAX1771ESA+T is a high-efficiency, low quiescent current step-up switching controller designed by Analog Devices Inc. It operates from an input voltage range of 2V to 16.5V and can provide a preset 12V output voltage, which can also be adjusted using external resistors. This controller utilizes a unique current-limited pulse-frequency-modulation (PFM) control scheme to achieve up to 90% efficiency over a load range of 30mA to 2A.
With a maximum supply current of 110µA and a shutdown current of 5µA, the MAX1771ESA+T is ideal for battery-powered applications. Its high switching frequency, up to 300kHz, allows for the use of miniature surface-mount magnetics. The device can drive an external N-channel MOSFET to deliver up to 24W of output power.
Applications include positive LCD-bias generators, flash memory programmers, high-power RF power-amplifier supplies, palmtops, hand-held terminals, portable communicators, and other battery-powered devices. The MAX1771ESA+T is available in an 8-pin SOIC package suitable for surface mounting.
The controller optimizes efficiency at low input voltages and reduces noise by employing a single 100mV current-limit threshold under all load conditions. This design makes it a versatile component for power management in portable and battery-operated systems.
| Qty | Low | High |
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| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The input voltage range is 2V to 16.5V.
The output voltage is preset to 12V and can be adjusted using two external resistors.
The maximum output power is 24W.
Efficiency is 90% for load currents from 30mA to 2A.
The maximum switching frequency is 300kHz.
The maximum quiescent current is 110µA.
It is available in an 8-SO surface-mount package.