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Product Detailed Parameters
- Description：IC REG DL BUCK/LINEAR SYNC 10DFN
- 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 2：1.5V, 300mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：Yes
- Voltage - Supply：2.7V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：10-VFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The TC1304-ZS0EMF is a dual-output power management IC from Microchip Technology, integrating a 500 mA synchronous buck regulator and a 300 mA low-dropout (LDO) linear regulator. It operates within an input voltage range of 2.7 V to 5.5 V. The LDO output provides a fixed 1.5 V supply with a typical quiescent current of 65 µA. The device utilizes a DFN-10 package for surface-mount installation.
Feature Summary
- Integrates a high-efficiency synchronous buck converter and a low-noise LDO in a single compact package
- Features automatic transition between PWM and PFM modes to optimize efficiency across varying load conditions
- Includes a dedicated Power-Good output signal with a defined delay for system monitoring
Applications
- Portable electronic devices requiring efficient multi-rail power distribution
- Battery-powered systems needing extended operational life through optimized power management
- Embedded applications utilizing microcontrollers or sensors with distinct voltage requirements
Procurement Notes
Verify the specific suffix ZS0EMF against official Microchip documentation to confirm the fixed 1.5 V LDO output configuration. Ensure compatibility with the required DFN-10 footprint and thermal characteristics during integration. Confirm RoHS compliance status via the manufacturer's datasheet before finalizing procurement specifications.
Selection Notes
Select this component when a combined switching and linear regulation solution is required for space-constrained designs. The integrated nature reduces external component count compared to discrete solutions. Consider the 65 µA quiescent current for battery life calculations and verify that the 500 mA buck and 300 mA LDO currents meet the target application loads.
Part Context
This part belongs to the TC1303/TC1304 family of dual-output regulators. While the TC1303 offers independent shutdown controls for both outputs, the TC1304 variant typically manages them together. The ZS0EMF designation specifically identifies the fixed 1.5 V LDO output version within the broader product line.
Replacement Considerations
Direct substitutes include other TC1304 variants with different output voltages, such as TC1304-XO0EMF or TC1304-QO0EMF, provided the voltage requirements match. Verify pin-to-pin compatibility and electrical parameters before substitution.
