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Product Detailed Parameters
- Description：IC REG QUAD BUCK/LNR SYNC 16TQFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Bulk
- Topology：Step-Down (Buck) Synchronous (2), Linear (LDO) (2)
- Number of Outputs：4
- Frequency - Switching：1.5MHz
- Voltage/Current - Output 1：0.6V ~ 3.3V, 600mA
- Voltage/Current - Output 2：0.6V ~ 3.3V, 1.2A
- Voltage/Current - Output 3：3.3V, 300mA
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：2.6V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-WFQFN Exposed Pad
- Supplier Device Package：16-TQFN (3x3)
- Grade：-
- Qualification：-
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Overview
The MAX8668ETEP+T is a power management integrated circuit featuring two synchronous buck converters and two low-dropout linear regulators. It operates with an input voltage range of 2.6V to 5.5V. The switching frequency for the DC-DC converters is fixed at 1.5MHz. Output voltages for the buck converters are adjustable from 600mV to 3.3V, supporting currents up to 1.2A and 600mA respectively. The LDO outputs provide a fixed 3.3V at 300mA. The device is housed in a 16-TQFN (3x3) package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates dual synchronous step-down DC-DC converters with individual enable controls for independent power rail management.
- Includes two dedicated low-dropout linear regulators to provide clean power for noise-sensitive analog circuits.
- Features a compact 16-pin TQFN footprint designed to minimize printed circuit board area requirements.
Applications
- Portable electronic devices requiring multiple regulated voltage rails
- Embedded systems utilizing mixed-signal processing
- Battery-powered equipment needing efficient power conversion
Procurement Notes
Verify component authenticity through authorized distribution channels due to potential supply chain variations. Confirm RoHS compliance status and specific manufacturing lot details prior to integration. Review the official datasheet for updated handling instructions and thermal dissipation guidelines relevant to the specific application environment.
Selection Notes
Evaluate the total output current requirements against the specific capabilities of each regulator channel. Ensure the input voltage source remains stable within the specified 2.6V to 5.5V operational window. Consider thermal performance constraints imposed by the small TQFN package when designing the PCB copper layout for adequate heat spreading.
Part Context
This component belongs to the MAX8668 series of highly integrated power management solutions. It combines switching and linear regulation technologies to address diverse power needs in space-constrained designs. The series targets applications demanding high efficiency alongside low noise performance for sensitive signal processing.
Replacement Considerations
Consult official documentation for direct pin-compatible substitutes or functional equivalents within the same product family. Verify that any alternative component matches the electrical specifications and physical dimensions required for the existing design.
FAQ
What is the maximum switching frequency of the DC-DC converters?
The internal oscillators operate at a fixed frequency of 1.5MHz.
Does the device support independent control of the power rails?
Yes, both the synchronous buck converters and the LDOs feature individual enable pins for independent operation.
