MAX1760, MAX1760H

0.8A, Low-Noise, 1MHz, Step-Up DC-DC Converter


Please check latest availability status for a specific part variant.

Description

The MAX1760/MAX1760H are high-efficiency, low-noise, step-up DC-DC converters intended for use in battery-powered wireless applications. They combine low quiescent supply current (100µA) with a high 1MHz operating frequency. Small external components and tiny 10-pin TDFN and µMAX® packages make this device an excellent choice for small hand-held applications. The MAX1760 is activated by a logic-low active-low ON signal while the MAX1760H is activated by a logic-high ON input.

Both devices use a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of inputs, such as 1 to 3 alkaline or NiCd/NiMH cells or a single lithium-ion (Li+) cell. Proprietary Idle-Mode™ circuitry significantly improves light-load efficiency and smoothly transitions to fixed-frequency PWM operation at higher load currents.

Low-noise, forced-PWM mode is available for applications requiring constant-frequency operation at all load currents. PWM operation can also be synchronized to an external clock to protect sensitive frequency bands in communications equipment. Analog soft-start and adjustable current limit permit optimization of efficiency, external component size, and output voltage ripple.
MAX1760, MAX1760H: Typical Operating Circuit MAX1760, MAX1760H: Typical Operating Circuit Enlarge+

Key Features

  • Up to 94% Efficiency
  • 0.7V to 5.5V Input Range
  • Up to 800mA Output
  • Fixed 3.3V Output (or Adjustable from 2.5V to 5.5V)
  • PWM Synchronous-Rectified Topology
  • Low-Noise, Constant-Frequency Operation (1MHz)
  • 0.1µA Logic-Controlled Shutdown
  • Synchronizable Switching Frequency
  • Adjustable Current Limit
  • Adjustable Soft-Start
  • 10-Pin µMAX Package
  • 10-Pin 3mm x 3mm TDFN Package

Applications/Uses

  • Digital Cordless Phones
  • Handheld Instruments
  • Palmtop Computers
  • PCS Phones
  • Personal Communicators
  • Two-Way Paging
  • Wireless Handsets

See parametric specs for Step-Up Switching Regulators (101)


Part NumberVIN
(V)
VIN
(V)
VOUT1
(V)
VOUT1
(V)
IOUT1
(A)
Switch TypeOper. Freq.
(kHz)
FeaturesPackage/PinsBudgetary
Price
minmaxminmaxmaxSee Notes
MAX1760 0.75.52.55.50.8Internal1000
External Sync.
Fixed Freq./PWM
TDFN/10
UMAX/10
$2.68 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX1760EVKIT: Evaluation Kit for the MAX1760
Product Reliability Reports: MAX1760H.pdf  MAX1760.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >

 
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