MAX1771EPA Power Led Driver IC Switching Controller IC 12V Adjustable Step Up DC-DC
Brand Name:Analog Devices Inc
Model Number:MAX1771EPA
Minimum Order Quantity:5 pcs
Delivery Time:2-5work days
Payment Terms:T/T, Western Union, MoneyGram,Google pay,PayPay
Place of Origin:Original Factory
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Shenzhen Guangdong China
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Room L, 23rd Floor, Building B, Duhui 100, Zhonghang Rd, Futian District, Shenzhen City, Guangdong
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Product Details
MAX1771EPA Integrated Circuit Ic Chip Switching Controllers 12V Adjustable Step-Up DC-DC Controller
Applications
Positive LCD-Bias Generators
Flash Memory Programmers
High-Power RF Power-Amplifier Supply
Palmtops/Hand-Held Terminals
Battery-Powered Applications
Portable Communicators
Specifications
| Product Attribute | Attribute Value |
|---|---|
| Analog Devices Inc. | |
| Product Category: | Switching Controllers |
| Boost | |
| 1 Output | |
| 300 kHz | |
| 50 % | |
| 2 V to 16.5 V | |
| 12 V | |
| 2 A | |
| - 40 C | |
| + 85 C | |
| Through Hole | |
| PDIP-8 | |
| Tube | |
| Product Type: | Switching Controllers |
Description
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-width modulation (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
♦ 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
Trading Guides
| Shipping | Delivery period | For in-stock parts, orders are estimated to ship out in 3 days. |
| Shipping rates | After confirming the order, we will evaluate the shipping cost based on the weight of the goods | |
| Shipping option | We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping. | |
| Shipping tracking | We will notify you by email with tracking number once order is shipped. | |
Returning warranty | Returning | Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping. |
| Warranty | All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation | |
| Ordering | Payment | T/T,PayPal, Credit Card includes Visa, Master, American Express. |
MAX1771EPA Power Led Driver IC Switching Controller IC 12V Adjustable Step Up DC-DC
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