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Product Detailed Parameters
- Description：IC REG DL BUCK/LNR SYNC 10MSOP
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Topology：Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs：2
- Frequency - Switching：2MHz
- Voltage/Current - Output 1：Adj, 500mA
- Voltage/Current - Output 2：3.3V, 300mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：2.7V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Grade：-
- Qualification：-
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Overview
The TC1313-ZA0EUN is a dual-output power management IC manufactured by Microchip Technology, featuring a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) regulator. It operates within an input voltage range of 2.7 V to 5.5 V. The buck converter supports adjustable output voltages from 0.8 V to 4.5 V or standard fixed outputs, utilizing a 2.0 MHz fixed-frequency PWM control mode with automatic transition to PFM for light loads. The device is housed in a 10-pin MSOP package.
Feature Summary
- Dual-output architecture combining a high-efficiency synchronous buck converter with a dedicated LDO.
- Independent shutdown controls allow separate management of the buck and LDO outputs.
- Integrated compensation eliminates external stability components for both regulators.
- Low quiescent current consumption enhances battery life in portable applications.
Applications
- Portable consumer electronics requiring multiple voltage rails
- Battery-powered devices needing efficient step-down conversion
- Embedded systems with strict space constraints
Procurement Notes
Verify the specific suffix code against official Microchip documentation to confirm the exact LDO output voltage configuration. Ensure the ordering part number matches the required package type and temperature rating. Cross-reference the datasheet revision to confirm pinout compatibility and electrical specifications before finalizing procurement.
Selection Notes
Select this component when a compact solution is needed for generating two distinct voltage levels from a single supply. The internal compensation simplifies layout design compared to discrete solutions. Consider the thermal performance of the MSOP package relative to the expected load current and ambient operating conditions.
Part Context
This part belongs to the TC1313 family of dual-output regulators designed for space-sensitive applications. The series integrates a synchronous buck and an LDO to reduce component count. Variations within the family differ primarily in the fixed output voltage of the LDO section and the packaging style.
Replacement Considerations
Consult the Microchip TC1313 datasheet for direct pin-compatible alternatives with different fixed LDO voltages. Verify that substitute parts maintain the same 500 mA buck and 300 mA LDO current capabilities and 2.0 MHz switching frequency.
