MIC5353-2.8YMT TR Microchip Integrated Circuit (Small Outline No-lead) In Stock
Microchip MIC5353-2.8YMT TR is a positive 2.8 V, 500 mA low dropout linear regulator in a compact 6-pin TDFN package with exposed thermal pad for enhanced heat dissipation. Designed for portable consumer electronics and RF modules requiring a stable low-noise 2.8 V supply at up to 500 mA output current.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- MIC5353-2.8YMT TR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 2.8 V output at 500 mA with low dropout voltage suitable for RF transceiver and CMOS sensor supply rails
- 6-pin TDFN package with exposed thermal pad (EP) enables efficient thermal management in compact SMT PCB designs
- Tape-and-reel (T/R) packaging supports high-volume automated pick-and-place assembly with minimal handling
Applications
The MIC5353-2.8YMT TR is well suited for powering RF front-end modules, CMOS image sensors, and Bluetooth or Wi-Fi transceivers that require a clean, stable 2.8 V rail at currents up to 500 mA. Its compact TDFN package with exposed thermal pad allows efficient heat sinking on dense PCBs in smartphones, wearables, and IoT devices. The fixed 2.8 V output and low-noise characteristics also make it appropriate for analog sensor excitation and MIPI CSI camera module power supplies in embedded systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MIC5353-2.8YMT TR:
Frequently Asked Questions
What output voltage and maximum output current does the MIC5353-2.8YMT TR provide?
The MIC5353-2.8YMT TR provides a fixed 2.8 V output at up to 500 mA continuous output current. This 2.8 V, 500 mA rating is commonly required by RF transceivers, CMOS sensors, and camera modules in portable consumer electronics operating from 3.3 V or 4.2 V Li-Ion battery rails.
What thermal advantages does the exposed pad of the 6-pin TDFN package offer compared to a standard SOT-23 LDO at 500 mA?
The exposed thermal pad on the MIC5353-2.8YMT TR's TDFN package transfers heat directly to the PCB copper pour, reducing thermal resistance by approximately 30% to 50% compared to a non-exposed SOT-23 package at the same 500 mA load. At 500 mA with a 0.5 V headroom, the device dissipates 250 mW; the exposed pad keeps junction temperature well below the 125°C maximum even on a 2-layer PCB with a small copper pour.
For which RF or wireless module supply applications is the MIC5353-2.8YMT TR a preferred choice over adjustable LDOs?
The MIC5353-2.8YMT TR is preferred for RF and wireless supply applications where a precise, fixed 2.8 V rail is needed for components such as Wi-Fi chipsets, Bluetooth modules, GPS receivers, or MIPI CSI camera interfaces, all of which are typically rated for 2.8 V ± 5% supply tolerance. A fixed-output LDO eliminates resistor divider tolerance error and simplifies PCB design compared to adjustable LDOs requiring two external resistors with 1% or better tolerance to hit the 2.8 V ± 140 mV window.
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