MIC5270-4.1YM5 TR Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
MIC5270-4.1YM5 TR is a negative-output LDO linear regulator from Microchip providing a fixed -4.1 V output at 100 mA with low dropout, packaged in a compact 5-pin SOT-23 tape-and-reel format.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MIC5270-4.1YM5 TR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed -4.1 V negative output LDO delivering 100 mA for analog and mixed-signal negative supply rails
- Low dropout voltage enables efficient negative regulation from supplies close to -4.1 V output
- Enable pin in 5-pin SOT-23 package allows power sequencing and shutdown for battery-managed systems
- Tape-and-reel packaging (TR suffix) supports automated pick-and-place assembly in high-volume production
Applications
The MIC5270-4.1YM5 TR provides a stable negative -4.1 V rail for operational amplifiers, analog signal chains, and LCD bias circuits in portable consumer electronics and industrial instruments. Its 100 mA output capacity is suited to biasing dual-supply op-amp stages or driving small analog displays from a single positive input supply combined with a charge pump. The tiny SOT-23-5 footprint integrates easily alongside positive LDOs in space-constrained handheld and wearable designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output voltage and current does MIC5270-4.1YM5 TR deliver for analog dual-supply circuits?
MIC5270-4.1YM5 TR provides a fixed -4.1 V output at up to 100 mA continuous current. This is sufficient to bias dual-supply op-amp stages, analog front-ends, and LCD drivers in portable instruments that require a small negative rail alongside a positive supply.
How does the negative LDO topology of MIC5270-4.1YM5 TR simplify power supply design in single-supply systems?
By integrating the negative LDO in a 5-pin SOT-23 package, the MIC5270-4.1YM5 TR allows a single positive input supply to power a charge pump that feeds the regulator, eliminating a separate negative transformer winding. The enable pin supports controlled power sequencing so the negative -4.1 V rail comes up predictably relative to the positive rail.
Which circuit types require a -4.1 V rail where MIC5270-4.1YM5 TR is the practical solution?
Dual-supply operational amplifier circuits, precision instrumentation amplifiers, RS-232 line drivers, and bipolar DAC reference networks commonly need a -4.1 V or close negative supply. MIC5270-4.1YM5 TR provides this at 100 mA with the accuracy and stability required for audio, sensor conditioning, and measurement applications.
What does the 5-pin SOT-23 package of MIC5270-4.1YM5 TR offer compared to larger TO-92 negative LDOs?
The 5-pin SOT-23 package measures approximately 2.9 mm × 1.6 mm, which is far smaller than a TO-92 package, enabling tight board layouts in wearables and compact industrial modules. The extra pin provides the enable function absent on 3-pin regulators, adding power sequencing capability without any package size penalty compared to SOT-23-3 devices.
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