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Microchip Technology MIC2102YML-TR

Part No.:
MIC2102YML-TR
Manufacturer:
Microchip Technology
Category:
DC DC Switching Controllers
Package:
16-VFQFN Exposed Pad
Description:
IC REG CTRLR BUCK 16MLF
Quantity:

Unit Price:$1.16

Ext Price:$1.16

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Product Details

MIC2102YML-TR - 38 V Synchronous Buck Controller

MIC2102YML-TR is a Microchip adaptive on-time synchronous buck controller for high-input-voltage step-down power stages. It operates from 4.5 V to 38 V, supports an adjustable 0.8 V to 24 V output, and drives external high-side and low-side N-channel MOSFETs.

This orderable part is supplied in a 16-lead 3 mm × 3 mm VQFN package on tape and reel. Verify the latest controlled manufacturer documentation before design release.

Overview

The MIC2102YML-TR uses Microchip's Hyper Speed Control architecture to regulate a synchronous buck converter at a nominal constant frequency in continuous-conduction operation. Adaptive on-time control supports fast transient response and high step-down ratios while simplifying loop compensation.

The controller includes a 5 V regulator, high-side and low-side gate drivers, programmable frequency and current limit, enable control, power-good indication, soft-start, undervoltage lockout, thermal shutdown, and hiccup short-circuit protection.

Design note: MIC2102YML-TR is a controller. A complete converter also requires external MOSFETs, an inductor, input and output capacitors, a feedback divider, bootstrap parts, and current-limit programming components.

Key Advantages

Wide input range

The 4.5 V to 38 V operating range supports industrial, telecom, distributed-power, and intermediate-bus applications.

Fast transient response

Adaptive on-time control reacts quickly to load changes and is intended for high-input to low-output conversion.

External power-stage flexibility

Separate DH and DL outputs drive external N-channel MOSFETs, allowing the power stage to be selected for the required current and thermal target.

Integrated protection

Programmable current limit, fold-back hiccup protection, UVLO, soft-start, and thermal shutdown support robust converter behavior.

Feature Summary

Programmable switching frequency

The FREQ input sets a nominal operating frequency from 200 kHz to 600 kHz; tying FREQ to VIN selects 600 kHz.

Adjustable output voltage

An external divider at FB programs the output from the 0.8 V reference up to 24 V, subject to duty-cycle limits.

Power-good monitoring

The open-drain PG output indicates output-voltage status and requires an external pull-up resistor.

Pre-biased startup support

The control architecture supports startup into a pre-biased output and provides an internal soft-start sequence.

Package & Footprint

MIC2102YML-TR is supplied in a 16-lead 3 mm × 3 mm VQFN surface-mount package with an exposed thermal pad. The product database identifies the package as 16-VFQFN Exposed Pad. The TR ordering option uses a standard tape-and-reel quantity of 5,000 pieces.

16-VFQFN Exposed Pad package image for MIC2102YML-TR
16-VFQFN Exposed Pad package
Layout checks
  • Use the current Microchip 16-lead VQFN package drawing for the land pattern and pin-1 orientation.
  • Connect the exposed pad to the PGND plane with suitable thermal vias.
  • Keep the SW copper compact and away from FB, ILIM, and other sensitive control nodes.
  • Separate AGND and PGND return paths and join them according to the reference layout.

The package registry already contains 16-VFQFN Exposed Pad, but 16-VFQFN-Exposed-Pad.jpg is currently marked as missing. Add and verify the JPEG before publishing this page.

Pin Functions

The following mapping is for the 16-lead 3 mm × 3 mm VQFN, top view in the Microchip datasheet. The exposed pad is a separate thermal and electrical connection.

1 — VDD
Internal 5 V regulator output and internal supply bus; bypass to AGND.
2 — PVDD
Supply input for the low-side N-channel MOSFET gate driver; normally decoupled to PGND.
3 — ILIM
Current-limit programming input used with a resistor connected to SW.
4 — DL
Low-side gate-drive output for the external N-channel MOSFET.
5 — PGND
Power-ground return for the low-side driver and converter power stage.
6 — FREQ
Switching-frequency adjustment input for the 200 kHz to 600 kHz operating range.
7 — DH
Floating high-side gate-drive output for the external N-channel MOSFET.
8 — SW
Switch node, current-sense input, and high-side driver return; use a Kelvin sense connection where specified.
9, 11 — NC
No internal connection; follow the manufacturer layout guidance.
10 — BST
Bootstrap supply input for the high-side gate driver.
12 — AGND
Signal-ground reference for VDD and the control circuitry.
13 — FB
Feedback input regulated to 0.8 V through the external output-voltage divider.
14 — PG
Open-drain power-good output requiring an external pull-up.
15 — EN
CMOS-compatible active-high enable input.
16 — VIN
Main 4.5 V to 38 V controller supply input.
EP — Exposed Pad
Connect to the PGND plane to improve electrical and thermal performance.

Confirm pin orientation, absolute maximum ratings, bootstrap design, gate resistance, current-sense routing, and grounding in the current Microchip datasheet before PCB layout.

Key Specifications

Orderable Part NumberMIC2102YML-TR
ManufacturerMicrochip Technology
FunctionAdaptive on-time synchronous buck controller
Control ArchitectureHyper Speed Control, continuous-conduction operation
Package16-lead 3 mm × 3 mm VQFN with exposed pad
Carrier Quantity5,000 pieces, tape and reel
Input Supply Range4.5 V to 38 V
Adjustable Output Range0.8 V to 24 V, also limited by duty cycle
Switching FrequencyProgrammable from 200 kHz to 600 kHz
Maximum Duty Cycle85% typical under the stated test condition
Feedback Reference0.8 V typical; ±1% at 25 °C under the stated test condition
MIC2102 Quiescent Current2.1 mA typical; 3 mA maximum under the stated test condition
Soft-Start Time5 ms typical in the electrical-characteristics table
Operating Junction Temperature−40 °C to +125 °C
Output InterfaceExternal high-side and low-side N-channel MOSFET gate drives

Typical and limit values use specific test conditions and do not establish guaranteed system performance. Apply the complete electrical-characteristics table and design equations to the actual converter.

Replacement Considerations

Microchip documents MIC2101 and MIC2102 in the same controller family and package. The control behavior at light load differs, so the related part below requires converter-level validation.

  • MIC2101YML-TR: same 16-lead 3 mm × 3 mm VQFN family option with HyperLight Load operation. It enters variable-frequency discontinuous mode at light load, while MIC2102 is intended for fixed-frequency continuous-conduction operation. Recheck ripple, efficiency, EMI, transient behavior, and approved operating mode before substitution.

A common footprint does not establish full electrical interchangeability. Confirm the exact orderable code, control mode, current-limit setup, MOSFET selection, compensation and ripple injection, thermal design, and qualification requirements.

Manufacturer Information

Microchip Technology publishes MIC2101/02 electrical limits, application guidance, pin descriptions, and package information in datasheet DS20005922B. Use the exact MIC2102YML-TR orderable code for procurement and traceability.

  • Product family: MIC2101/02
  • Manufacturer package: 16-lead 3 mm × 3 mm VQFN
  • Ordering suffix: TR tape and reel
  • Document basis: Microchip DS20005922B

Applications

Distributed power systems

High-current point-of-load and intermediate-bus converters requiring a wide input range.

Networking and telecom

Step-down rails for infrastructure equipment where fast transient response and power-good monitoring are useful.

Industrial electronics

Adjustable-output synchronous buck stages with programmable current limiting and fault protection.

Graphics and imaging equipment

Power rails for printers, scanners, graphics cards, and video-related systems.

Quality & Authenticity

Match the full MIC2102YML-TR orderable code, package marking, reel label, lot code, and moisture-barrier packaging to traceable procurement records. Inspect the exposed-pad VQFN package and confirm storage and reflow controls before assembly.

FAQ

Does MIC2102YML-TR include the power MOSFETs?

No. It is a controller with DH and DL gate-drive outputs for external high-side and low-side N-channel MOSFETs.

What is the main difference between MIC2102 and MIC2101?

MIC2102 uses Hyper Speed Control for continuous-conduction operation, while MIC2101 adds HyperLight Load operation and can enter variable-frequency discontinuous mode at light load.

How is switching frequency selected?

The FREQ input programs a nominal 200 kHz to 600 kHz frequency. Tying FREQ to VIN selects 600 kHz; a divider can select a lower value.

Can the current-limit setting be copied from another design?

It should be recalculated for the selected low-side MOSFET and temperature range because the scheme senses MOSFET RDS(ON), which changes with temperature.

Engineering Notice

This page supports component identification and initial selection. Final approval must use the current Microchip datasheet, package drawing, quality records, and converter validation across line, load, temperature, startup, shutdown, short circuit, and transient conditions.

MIC2102YML-TR Information

  • Specifications
  • Tags
Product attributes
Attribute value
Manufacturer:
Microchip Technology
Series:
Hyper Speed Control®
Package/Case:
16-VFQFN Exposed Pad
Packaging:
Tape & Reel (TR)
Product Status:
Active
Output Type:
Transistor Driver
Function:
Step-Down
Output Configuration:
Positive
Topology:
Buck
Number of Outputs:
1
Output Phases:
1
Voltage - Supply (Vcc/Vdd):
4.5V ~ 38V
Frequency - Switching:
200kHz ~ 600kHz
Duty Cycle (Max):
85%
Synchronous Rectifier:
Yes
Clock Sync:
No
Serial Interfaces:
-
Control Features:
Current Limit, Enable, Frequency Control, Power Good
Operating Temperature:
-40°C ~ 125°C (TJ)
Grade:
-
Qualification:
-
Mounting Type:
Surface Mount
Supplier Device Package:
16-MLF® (3x3)
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