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Datasheet Maxim MAX1676EUB-T

Maxim MAX1676EUB-T

Manufacturer:Maxim
Series:MAX1676
Part Number:MAX1676EUB-T

High-Efficiency, Low-Supply-Current, Compact, Step-Up DC-DC Converters.
Compact, Low-Cost, Low-Noise Design: Inductor Damping Switch Eliminates Ringing, Improves EMI

Datasheets

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    EVALUATION KIT AVAILABLE MAX1674/MAX1675/MAX1676
    High-Efficiency, Low-Supply-Current,
    Compact, Step-Up DC-DC Converters LE AVAILAB General Description
    The MAX1674/MAX1675/MAX1676 compact, high-efficiency, step-up DC-DC converters fit in small µMAX
    packages. They feature a built-in synchronous rectifier,
    which improves efficiency and reduces size and cost
    by eliminating the need for an external Schottky diode.
    Quiescent supply current is only 16µA.
    The input voltage ranges from 0.7V to VOUT, where
    VOUT can be set from 2V to 5.5V. Start-up is guaranteed from 1.1V inputs. The MAX1674/MAX1675/
    MAX1676 have a preset, pin-selectable output for 5V or
    3.3V. The outputs can also be adjusted to other voltages using two external resistors.
    All three devices have a 0.3Ω N-channel MOSFET
    power switch. The MAX1674 has a 1A current limit. The
    MAX1675 has a 0.5A current limit, which permits the
    use of a smaller inductor. The MAX1676 comes in a
    10-pin µMAX package and features an adjustable current limit and circuitry to reduce inductor ringing. ________________________Applications
    Pagers
    Wireless Phones
    Medical Devices
    Hand-Held Computers ____________________________Features
    ♦ 94% Efficient at 200mA Output Current
    ♦ 16µA Quiescent Supply Current ...

Manufacturer's Classification

Power > Switching Regulators

Other Names: MAX1676EUBT, MAX1676EUB T

Docket:
EVALUATION KIT AVAILABLE MAX1674/MAX1675/MAX1676
High-Efficiency, Low-Supply-Current,
Compact, Step-Up DC-DC Converters LE AVAILAB General Description
The MAX1674/MAX1675/MAX1676 compact, high-efficiency, step-up DC-DC converters fit in small µMAX
packages. They feature a built-in synchronous rectifier,
which improves efficiency and reduces size and cost
by eliminating the need for an external Schottky diode.
Quiescent supply current is only 16µA.
The input voltage ranges from 0.7V to VOUT, where
VOUT can be set from 2V to 5.5V. Start-up is guaranteed from 1.1V inputs. The MAX1674/MAX1675/
MAX1676 have a preset, pin-selectable output for 5V or
3.3V. The outputs can also be adjusted to other voltages using two external resistors.
All three devices have a 0.3Ω N-channel MOSFET
power switch. The MAX1674 has a 1A current limit. The
MAX1675 has a 0.5A current limit, which permits the
use of a smaller inductor. The MAX1676 comes in a
10-pin µMAX package and features an adjustable current limit and circuitry to reduce inductor ringing. ________________________Applications
Pagers
Wireless Phones
Medical Devices
Hand-Held Computers ____________________________Features
♦ 94% Efficient at 200mA Output Current
♦ 16µA Quiescent Supply Current
♦ Internal Synchronous Rectifier (no external diode)
♦ 0.1µA Logic-Controlled Shutdown
♦ LBI/LBO Low-Battery Detector
♦ Selectable Current Limit for Reduced Ripple
♦ Low-Noise, Anti-Ringing Feature (MAX1676)
♦ 8-Pin and 10-Pin µMAX Packages
♦ Preassembled Evaluation Kit (MAX1676EVKIT) _______________Ordering Information
PART TEMP. RANGE PIN-PACKAGE MAX1674EUA
MAX1675EUA
MAX1676EUB -40°C to +85°C
-40°C to +85°C
-40°C to +85°C 8 µMAX
8 µMAX
10 µMAX PDAs
RF Tags Pin Configurations 1 to 3-Cell Hand-Held Devices Functional Diagrams
Typical Operating Circuit TOP VIEW FB 1
INPUT
0.7V TO VOUT LBI 2 LBO 3 MAX1674
MAX1675 REF 4
ON SHDN OFF LX MAX1674 OUT
MAX1675 OUTPUT
3.3V, 5V, OR
ADJ (2V TO 5.5V)
UP TO 300mA ...

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