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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Microchip Technology MIC23201YML-T5

Name: MIC23201YML-T5
Brand: Microchip Technology
SKU: MIC23201YML-T5
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC23201YML-T5

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 10-VFQFN Exposed Pad, 10-MLF®

Datasheet:: MIC23201YML-T5.pdf

Description:: IC REG BUCK ADJ 2A 10MLF

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Product details

Overview

MIC23201YML-T5 from Micrel is a 2 MHz synchronous buck regulator delivering up to 2 A output current with Hyper Speed Control™ architecture, designed for low-voltage point-of-load (POL) conversion in space-constrained applications such as Blu-ray players and networking equipment. It operates from 2.7 V to 5.5 V input, regulates output down to 0.95 V, achieves peak efficiency of 90%, and maintains ultra-low output ripple (16 mV at full load) using only a 1 µH inductor and 22 µF output capacitor.

For engineers reviewing the MIC23201YML-T5 datasheet, MIC23201YML-T5 pinout, MIC23201YML-T5 application, or MIC23201YML-T5 equivalent, key selection criteria include its 2 MHz fixed-frequency PWM operation, programmable soft-start via external capacitor, power-good open-drain indicator, safe pre-biased startup capability, and thermal shutdown protection - all in a compact 3 mm × 3 mm MLF-10 package rated for –40°C to +125°C junction temperature.

Technical Context

The MIC23201YML-T5 implements Micrel's proprietary Hyper Speed Control™ architecture, enabling ultra-fast transient response without requiring external compensation. Its control loop dynamically adjusts duty cycle based on real-time feedback from the SNS pin, tightly regulating output voltage across load steps while maintaining stable 2 MHz switching frequency.

This device integrates both high-side P-channel and low-side N-channel MOSFETs with typical ON-resistances of 0.200 Ω and 0.190 Ω respectively, and features an internal 0.62 V reference referenced at the FB pin. The PG pin provides open-drain power-good signaling with 85–95% threshold relative to nominal output voltage and 68 µs delay, while EN enables logic-level control with 0.5–1.2 V turn-on threshold.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	2.7 V to 5.5 V - supports single-cell Li-ion, USB, and 3.3 V/5 V rail inputs without external LDO pre-regulation.
Output Current	2 A continuous - sufficient for powering processor cores, FPGAs, and ASICs in embedded systems.
Switching Frequency	2 MHz ±10% - enables use of small 1 µH inductors and minimizes EMI filtering requirements.
Feedback Reference Voltage	0.62 V ±1.5% - sets output voltage via resistor divider; allows adjustable outputs from 0.95 V to 3.6 V.
Peak Efficiency	90% at 3.3 V_IN/1.8 V_OUT - reduces thermal load and extends battery life in portable designs.
Shutdown Current	0.01 µA - ensures negligible battery drain during system sleep or standby modes.
Output Ripple	16 mV_PP at 2 A - meets tight noise budgets for sensitive analog and RF circuitry without additional LC filtering.
Junction Temperature Range	–40°C to +125°C - qualified for industrial and automotive under-hood environments with appropriate PCB thermal design.

Pinout & Package

Package: 10-pin 3 mm × 3 mm MLF (MicroLeadFrame) with exposed thermal pad (EP), RoHS-compliant NiPdAu lead finish, halogen-free mold compound.

Pin/Terminal	Circuit Role	Design Meaning
1 - SW	Switch node output	Connects directly to inductor; carries high di/dt switching current - requires short, wide trace routing away from sensitive nodes.
2 - EN	Enable input	Logic-high (>0.9 V) enables regulation; logic-low (<0.5 V) shuts down IC with 0.01 µA quiescent current - must not be left floating.
3 - SNS	Output voltage sense	High-accuracy remote sensing point - connect directly to output capacitor anode to reject PCB IR drop and improve load regulation.
4 - FB	Feedback input	Regulated to 0.62 V; used with resistor divider to set output voltage - trace must be short and远离 noisy SW node.
5 - PG	Power-good open-drain output	Asserts low when output is within 85–95% of target - requires external pull-up to V_OUT or another rail for system sequencing.
6 - SS	Soft-start timing	Capacitor-to-ground sets ramp time (e.g., 470 pF → ~300 µs); minimum 100 pF required - prevents inrush current and overshoot.
7 - AGND	Analog ground reference	Low-noise return for FB, SNS, SS, PG - must connect to central star ground point separate from PGND loop.
8 - SVIN	Signal supply input	Bias supply for control circuitry; externally tied to VIN - requires dedicated 2.2 µF ceramic capacitor to AGND.
9 - VIN	Main power input	Supplies internal MOSFETs; requires 22 µF ceramic bypass capacitor placed adjacent to pin and PGND.
10 - PGND	Power ground return	High-current return path for VIN, SW, and output capacitor - must be low-inductance, connected to EP thermal pad.
EP	Exposed thermal pad	Internally connected to PGND - must be soldered to large copper pour for thermal performance (θ_JA = 60.7°C/W).

Key Features

Feature	Design Value
Hyper Speed Control™ architecture	Delivers sub-microsecond transient response without external compensation components - critical for CPU/FPGA core rails with dynamic load changes.
Integrated MOSFETs	Eliminates need for external high-side P-MOS and low-side N-MOS - reduces BOM count, layout area, and gate-drive complexity.
Programmable soft-start	Prevents input inrush and output overshoot via external capacitor on SS pin - configurable rise time from ~100 µs to >1 ms.
Pre-biased output safe startup	Allows reliable start-up into pre-charged output capacitors - essential for hot-swap and multi-rail sequencing applications.
Power-good indicator	Open-drain PG pin with precise 85–95% threshold and 68 µs delay - enables accurate system power sequencing and fault detection.
Thermal and current protection	Includes overtemperature shutdown (160°C) with 20°C hysteresis and cycle-by-cycle current limiting (2.3–4.4 A) - ensures robust operation under fault conditions.

Applications

Processor Core Supply	Networking PHY Power
Use Scenario: Powers ARM Cortex-A series or FPGA core logic requiring tightly regulated 0.95–1.2 V at up to 2 A with fast load transients. IC Role / Device Role / Timing Role: Primary DC/DC step-down regulator providing clean, dynamically responsive core voltage. Use Value: Hyper Speed Control™ maintains <±1% output deviation during 1 A/µs load steps - avoids processor reset or timing violations.	Use Scenario: Supplies 1.8 V or 2.5 V to Ethernet PHY ICs in switches and routers where EMI and board space are constrained. IC Role / Device Role / Timing Role: Point-of-load converter delivering low-noise, high-efficiency power adjacent to PHY IC. Use Value: 16 mV_PP output ripple and 2 MHz switching enable compact filter design - meets IEEE 802.3 EMI limits without shielding.
Blu-ray Player SoC Rail	Set-Top Box Memory Interface
Use Scenario: Generates 1.1 V or 1.2 V for video decoder SoCs in consumer Blu-ray players operating from 5 V input. IC Role / Device Role / Timing Role: High-density POL regulator integrated into mainboard near SoC BGA footprint. Use Value: 3 mm × 3 mm MLF package and three-external-component solution reduce total footprint by >40% vs. discrete controller+MOSFET solutions.	Use Scenario: Powers DDR3/DDR4 memory termination or I/O rails in cable/satellite STBs requiring stable 1.5 V or 1.35 V at ≤1.5 A. IC Role / Device Role / Timing Role: Secondary buck regulator supporting memory subsystem with tight voltage tolerance. Use Value: 0.62 V reference and ±0.46% load regulation ensure compliance with JEDEC DDR voltage margin specs across temperature.

Processor Core Supply

Networking PHY Power

Use Scenario: Powers ARM Cortex-A series or FPGA core logic requiring tightly regulated 0.95–1.2 V at up to 2 A with fast load transients.

IC Role / Device Role / Timing Role: Primary DC/DC step-down regulator providing clean, dynamically responsive core voltage.

Use Value: Hyper Speed Control™ maintains <±1% output deviation during 1 A/µs load steps - avoids processor reset or timing violations.

Use Scenario: Supplies 1.8 V or 2.5 V to Ethernet PHY ICs in switches and routers where EMI and board space are constrained.

IC Role / Device Role / Timing Role: Point-of-load converter delivering low-noise, high-efficiency power adjacent to PHY IC.

Use Value: 16 mV_PP output ripple and 2 MHz switching enable compact filter design - meets IEEE 802.3 EMI limits without shielding.

Blu-ray Player SoC Rail

Set-Top Box Memory Interface

Use Scenario: Generates 1.1 V or 1.2 V for video decoder SoCs in consumer Blu-ray players operating from 5 V input.

IC Role / Device Role / Timing Role: High-density POL regulator integrated into mainboard near SoC BGA footprint.

Use Value: 3 mm × 3 mm MLF package and three-external-component solution reduce total footprint by >40% vs. discrete controller+MOSFET solutions.

Use Scenario: Powers DDR3/DDR4 memory termination or I/O rails in cable/satellite STBs requiring stable 1.5 V or 1.35 V at ≤1.5 A.

IC Role / Device Role / Timing Role: Secondary buck regulator supporting memory subsystem with tight voltage tolerance.

Use Value: 0.62 V reference and ±0.46% load regulation ensure compliance with JEDEC DDR voltage margin specs across temperature.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62231DRYT	2.25 MHz fixed-frequency, 2 A, 2.05–6.0 V input; 0.6 V reference; no PG or pre-bias support.	Lacks power-good output and pre-biased startup - unsuitable for sequenced or hot-plug systems.	Choose when PG signal and pre-bias safety are not required; offers slightly higher input voltage range.
RT8059NGQW	2 MHz, 2 A, 2.5–5.5 V input; 0.6 V reference; includes PG but no pre-bias support; 1.2 µA quiescent current in shutdown.	Higher shutdown current (1.2 µA vs. 0.01 µA) and no pre-bias capability - less ideal for battery-backed or always-on systems.	Prefer when lower cost is prioritized and ultra-low shutdown current is not critical.

Compared with TPS62231DRYT and RT8059NGQW, the MIC23201YML-T5 uniquely combines pre-biased startup, ultra-low 0.01 µA shutdown current, and integrated Hyper Speed Control™ - making it optimal for high-reliability, low-power, and dynamically loaded POL applications where sequencing integrity and efficiency at light loads are essential.

Availability

MIC23201YML-T5 is available at Aetrix Electronics and suitable for Blu-ray player power supplies, networking PHY rails, and set-top box memory interfaces requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MIC23201YML-T5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Micrel Inc. was a U.S.-based semiconductor company specializing in power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015. Known for innovation in high-efficiency DC/DC conversion and precision analog design.

The MIC23201YML-T5 belongs to Micrel's Hyper Speed Control™ buck regulator product line, engineered specifically for ultra-fast transient response in low-voltage, high-current point-of-load applications - targeting consumer, networking, and industrial embedded systems.

FAQ

What is the recommended input capacitor for MIC23201YML-T5?

The MIC23201YML-T5 requires a minimum 4.7 µF ceramic input capacitor, with 22 µF strongly recommended. Use X5R or X7R dielectric types rated for ≥6.3 V; avoid Y5V/Z5U due to capacitance loss at temperature and high-frequency resistance. Place the capacitor adjacent to the VIN and PGND pins with short, wide traces and multiple vias to ground plane.

Does MIC23201YML-T5 support pre-biased output startup?

Yes, MIC23201YML-T5 is explicitly designed to safely start up into a pre-charged output capacitor without causing reverse current or latch-up. This feature is confirmed in the datasheet under "Safe for pre-biased output" and is enabled by its internal control architecture - critical for hot-swap and multi-rail power sequencing applications.

What is the function of the SVIN pin on MIC23201YML-T5?

The SVIN pin on MIC23201YML-T5 supplies power to the internal analog control circuitry and must be externally connected to VIN. A dedicated 2.2 µF ceramic capacitor from SVIN to AGND is mandatory to suppress noise coupling into the feedback and regulation loops - failure to implement this degrades line/load regulation and stability.

How is output voltage programmed on MIC23201YML-T5?

Output voltage on MIC23201YML-T5 is set via a resistor divider from V_OUT to AGND connected to the FB pin, which is regulated to 0.62 V. Using R1 (top) and R2 (bottom), V_OUT = 0.62 V × (1 + R1/R2). For example, 301 kΩ and 158 kΩ yields 1.8 V. Values must be selected to maintain ≥10 µA divider current for accuracy.

What thermal considerations apply to MIC23201YML-T5 in a 3 mm × 3 mm MLF package?

MIC23201YML-T5 uses an exposed thermal pad (EP) connected internally to PGND. To achieve θ_JA = 60.7°C/W, the EP must be soldered to a ≥1.4 in² copper pour on the PCB with ≥4 thermal vias to inner ground planes. Junction temperature is calculated as T_J = T_AMB + P_DISS × θ_JA; derate output current above 85°C ambient per thermal curves in the datasheet.

MIC23201YML-T5 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: Hyper Speed Control®

Package/Case:: 10-VFQFN Exposed Pad, 10-MLF®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 2.7V

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 0.95V

Voltage - Output (Max):: 3.6V

Current - Output:: 2A

Frequency - Switching:: 2MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MLF® (3x3)

MIC23201YML-T5 FAQ

1.How can I place an order for MIC23201YML-T5 through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC23201YML-T5 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MIC23201YML-T5 reliable?

The price and inventory of MIC23201YML-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23201YML-T5 is usually 5 days.

3.What payment methods are accepted for MIC23201YML-T5?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23201YML-T5 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC23201YML-T5?

MIC23201YML-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC23201YML-T5 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MIC23201YML-T5?

For technical support, including MIC23201YML-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23201YML-T5 requirements.

6.How does Aetrix verify that MIC23201YML-T5 is sourced from the original manufacturer or authorized distributors?

All MIC23201YML-T5 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MIC23201YML-T5 meets industry standards.

7.What is the process for return or replacement of MIC23201YML-T5?

All MIC23201YML-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC23201YML-T5, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MIC23201YML-T5 part is unused and in its original packaging.

Return procedure for MIC23201YML-T5:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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