MAX1672EEE+ by Analog Devices

Step-Up/Down DC-DC Converter in QSOP Package


The MAX1672 integrates a step-up DC-DC converter with a linear regulator to provide step-up/down voltage conversion. This device provides a constant output voltage for inputs that vary above and below the output voltage. It has a 1.8V to 11V input range and a preset 3.3V or 5V output. The output can also be set from 1.25V to 5.5V using two resistors. Typical efficiency is 85%. The MAX1672's step-up/linear-regulator configuration permits the use of a single, physically smaller inductor than can be used with competing SEPIC and flyback configurations. Switch current is also selectable, permitting the use of smaller inductors in low-current applications. The linear regulator also acts as a filter to reduce output ripple voltage. The MAX1672 has a low 85µA quiescent supply current, which is further reduced to 0.1µA in logic-controlled shutdown. The output voltage is disconnected from the input in shutdown. The MAX1672 also has a PGI/PGO-bar low-battery detector. The MAX1672 comes in a 16-pin QSOP package (same size as a standard 8-pin SO). For a larger device that delivers more output current, refer to the MAX710/MAX711. The preassembled MAX1672 evaluation kit is available to speed designs.

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Features

Step-Up/Down Voltage Conversion
1.8V to 11V Input Range
3.3V/5V or Adjustable Output Voltage Range
Output Current: 300mA at 5V (VIN > 2.5V) 150mA at 5V (VIN > 1.8V)
300mA at 5V (VIN > 2.5V)
150mA at 5V (VIN > 1.8V)
Smaller Inductor than SEPIC and Flybacks
Load Disconnects from Input in Shutdown
Supply Current from Battery: 85µA (No-Load) 0.1µA (Shutdown)
85µA (No-Load)
0.1µA (Shutdown)
PGI/PGO-bar Low-Battery Comparator
16-Pin QSOP Package (Same Footprint as 8-pin SO)
No External FETs Required
Thermal and Short-Circuit Protection

Specifications

VIN (V) (min) 1.8
VIN (V) (max) 11
VOUT1 (V) (min) 1.25
VOUT1 (V) (max) 5.5
IOUT1 (A) (max) 0.26
Switch Type Internal
Preset VOUT (V) 5
Output Adjust. Method PresetResistor
Power Good Signal Yes
# DC-DC Outputs 1
Package/Pins QSOP/16
BudgetaryPrice (See Notes) 3.35


MAX1672EEE+ Semiconductors - ICs by Analog Devices

CONVERTER DC/DC STEP UP/DOWN SMD

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Topology Buck Boost
Input Voltage Min 1.8V
Input Voltage Max 11V
No. of Outputs 1Outputs
DC / DC Converter IC Case QSOP
No. of Pins 16Pins
Output Current 200mA
Output Voltage Min 1.25V
Output Voltage Max 5.5V
Switching Frequency -
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Adjustable Output Voltage Max 5.5V
Adjustable Output Voltage Min 1.25V
Base Number 1672
IC Temperature Range Industrial
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +85°C
Output Current Max 0.3A
Output Voltage 5V
Primary Input Voltage 6V
Supply Voltage Max 11V
Supply Voltage Min 1.8V
Termination Type Surface Mount Device
Voltage Regulator Type Linear

Alternative Descriptions

Step-Up/Down DC-DC Converter i | Analog Devices
Dc/Dc Conv, Buck/Boost, Qsop-16 | Newark Electronics
CONVERTER, DC/DC, STEP UP/DOWN, SMD | element14
STEP-UP/DOWN DC-DC CONVERTER | RS
IC: PMIC | Transfer Multisort Elektronik

Frequently Asked Questions

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Is the MAX1672EEE+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, Newark Electronics, element14, Farnell and RS have stock available or on a lead time for MAX1672EEE+ .

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