MAX1700EEE

Voltage - Output (Min/Fixed):	2.2V
Base Part Number:	MAX1700
Supplier Device Package:	16-QSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	300kHz
Current - Output:	1.1A (Switch)
Voltage - Output (Max):	5.5V
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	0.7V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Obsolete
Packaging:	Tube

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MAX1700EEE Application Field and Working Principle

MAX1700EEE is a DC DC switching regulator specifically designed for micropower applications. It has a wide input voltage range that operates over a 3.2V to 30V range. The MAX1700EEE includes a buck topology, which offers tremendous power density, excellent transient performance, and superior thermal properties. It offers a high power conversion efficiency and low output ripple. Its low quiescent current and selectable output current limit make the MAX1700EEE ideal for battery-powered applications. This device is offered in a small 3mmx2.5mm TDFN package and is well suited for space-constrained, power-sensitive applications.

Application Field

The MAX1700EEE is designed for low-power DC-to-DC conversion applications that require a high input voltage range and superior efficiency. These applications include medical instrumentation and wearable devices (such as wristwatches and eyeglasses), white goods, and battery-operated systems.

Working Principle

The MAX1700EEE is a fully integrated synchronous PWM buck converter. It includes a low-side MOSFET, high-side MOSFET, and control circuitry, all in a tiny 3mmx2.5mm TDFN package. To maximize efficiency, the device automatically selects between the two FETs for different duty cycles.The MAX1700EEE employs a Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) control to maintain a constant output voltage. PFM is used when the output current drops below a certain level, while PWM is used when the output current increases above this level. PFM provides ultralow quiescent current and high efficiency at light-load conditions. Additionally, the operating frequency can be changed to maximize efficiency without impacting system performance.To ensure the highest accuracy in output voltage, the MAX1700EEE has an adjustable output voltage trip point that allows the user to set the maximum output voltage. This trip point is set at the output voltage, and any output current that exceeds the trip point will be immediately shut off.The MAX1700EEE integrates overcurrent, thermal shutdown, and brown-out protection circuitry. It offers selectable output current limit from 0.3A to 2.5A. The device also supports high-speed transient response and output voltage settling time.In conclusion, the MAX1700EEE is a fully integrated high-performance DC-to-DC converter designed for low-power applications. It is designed to offer high efficiency, low-noise operation, and a wide input voltage range of 3.2V to 30V. It offers selectable output current limit and adjustable output voltage trip point for higher accuracy, and integrates several protection functions to ensure safety and reliability.

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