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MAXIM MAX1771ESA+TRoHS

Manufacturer
MAXIM
MPN
MAX1771ESA+T
LCSC Part #
C407903
Packaging
SO-8
Customer #
Key Attributes
High-Efficiency, Low IQ, Step-Up DC-DC Controller
Datasheetpdf iconMAXIM MAX1771ESA+T
In-Stock: 400
400 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 6.5847$ 5.9921$ 5.99
10+$ 5.6176$ 5.1121$ 51.12
30+$ 5.0432$ 4.5894$ 137.68
100+$ 4.0956$ 3.7270$ 372.70
500+$ 3.8278$ 3.4833$ 1741.65
1,000+$ 3.7078$ 3.3741$ 3374.10
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerMAXIM
PackagingSO-8
Synchronous RectifierNo
FeaturesLight load efficient mode;Overcurrent Protection
Number of Channels1
TopologyBoost
Operating Voltage3V~16.5V
Switch tube (built-in/external)External
Output Voltage12V
Operating Temperature-40℃~+85℃@(TA)
Output Current2A
Frequency - Switching300kHz
Output TypeAdjustable
FunctionBoost
Quiescent Current85uA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The MAX1771 step-up switching controller provides 90% efficiency over a 30mA to 2A load. A unique current-limited pulse-frequency-modulation (PFM) control scheme gives this device the benefits of pulse-widthmodulation (PWM) converters (high efficiency at heavy loads), while using less than 110µA of supply current (vs. 2mA to 10mA for PWM converters). This controller uses miniature external components. Its high switching frequency (up to 300kHz) allows surface-mount magnetics of 5mm height and 9mm diameter. It accepts input voltages from 2V to 16.5V. The output voltage is preset at 12V, or can be adjusted using two resistors. The MAX1771 optimizes efficiency at low input voltages and reduces noise by using a single 100mV current-limit threshold under all load conditions. A family of similar devices, the MAX770–MAX773, trades some full-load efficiency for greater current-limit accuracy; they provide a 200mV current limit at full load, and switch to 100mV for light loads. The MAX1771 drives an external N-channel MOSFET switch, allowing it to power loads up to 24W. If less power is required, use the MAX756/MAX757 or MAX761/MAX762 step-up switching regulators with on-board MOSFETs. An evaluation kit is available.

Features

AI Translation
  • 90% Efficiency for 30mA to 2A Load Currents
  • Up to 24W Output Power
  • 110µA (max) Supply Current
  • 5µA (max) Shutdown Current
  • 2V to 16.5V Input Range
  • Preset 12V or Adjustable Output Voltage
  • Current-Limited PFM Control Scheme
  • Up to 300kHz Switching Frequency
  • Evaluation Kit Available

Applications

AI Translation
  • Positive LCD-Bias Generators
  • Flash Memory Programmers
  • High-Power RF Power-Amplifier Supply
  • Palmtops/Hand-Held Terminals
  • Battery-Powered Applications
  • Portable Communicators