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Microchip Technology MIC23201YML-TR
- Part No.:
- MIC23201YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFQFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC23201YML-TR.pdf
- Description:
- IC REG BUCK ADJ 2A 10MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC23201YML-TR 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 ceramic output capacitor.
For engineers reviewing the MIC23201YML-TR datasheet, MIC23201YML-TR pinout, MIC23201YML-TR application, or MIC23201YML-TR 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 with 160°C trip point - all in a compact 10-pin 3 mm × 3 mm MLF package rated for –40°C to +125°C junction temperature.
Technical Context
The MIC23201YML-TR implements a proprietary Hyper Speed Control™ architecture that enables ultra-fast transient response by dynamically adjusting control loop behavior without external compensation. Its integrated high-side P-channel and low-side N-channel MOSFETs feature typical ON-resistances of 0.200 Ω and 0.190 Ω, respectively, supporting continuous 2 A output with minimal conduction loss.
It employs constant-frequency voltage-mode PWM control synchronized to ~2 MHz, delivering stable regulation across input voltages (2.7–5.5 V) and output loads (0–2 A), while maintaining feedback reference accuracy of 0.62 V ±1.3% over temperature and line/load variations. The device integrates undervoltage lockout (2.55 V typ., 200 mV hysteresis), enable threshold (0.9 V typ.), and 0.01 µA shutdown current.
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 FPGA core, ASIC I/O, or microprocessor subsystems in compact consumer and networking gear. |
| Switching Frequency | 2 MHz nominal - enables use of small 1 µH inductors and minimizes EMI fundamental frequency above AM band. |
| Feedback Reference | 0.62 V ±1.3% - sets precise output voltage via resistor divider; enables 0.95 V to 3.6 V programmability with <1% load regulation error. |
| Peak Efficiency | 90% at 3.3 VIN/1.8 VOUT - reduces thermal load in sealed enclosures and extends battery runtime in portable devices. |
| Shutdown Current | 0.01 µA - preserves system standby power budget in always-on or low-power wake-up architectures. |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
Package: 10-pin 3 mm × 3 mm MLF (MicroLeadFrame) with exposed thermal pad (ePad), RoHS-compliant NiPdAu lead finish, and halogen-free mold compound. Thermal resistance θJA = 60.7°C/W, θJC = 28.7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch node output | Drives external inductor; carries high di/dt switching current - requires short, low-inductance routing away from sensitive analog traces. |
| 2 EN | Enable input | Active-high logic control (0.9 V typ. threshold); floating state disables regulator - must be pulled high or low via external resistor. |
| 3 SNS | Output voltage sense | Direct connection to output capacitor anode for accurate load regulation; placement near COUT minimizes PCB trace impedance error. |
| 4 FB | Feedback input | Regulated to 0.62 V; resistor divider from VOUT to GND sets output voltage - high-impedance node sensitive to noise coupling. |
| 5 PG | Power Good open-drain | Asserts logic low when VOUT drops below 87% of nominal; requires external pull-up to VOUT or bias rail for system monitoring. |
| 6 SS | Soft-start timing | Capacitor-to-ground sets ramp time (~300 µs with 470 pF); prevents inrush current and output overshoot at startup. |
| 7 AGND | Analog ground reference | Low-noise return for internal control circuitry - must connect to central star ground point separate from high-current PGND paths. |
| 8 SVIN | Signal supply input | Bias rail for internal logic; externally tied to VIN - requires dedicated 2.2 µF ceramic bypass to AGND for noise immunity. |
| 9 VIN | Main power input | Supplies internal MOSFETs and high-current paths; requires 22 µF ceramic bypass to PGND placed adjacent to pin. |
| 10 PGND | Power ground return | High-current return path for switch node and input capacitor - must use wide copper pour and multiple vias to internal ground plane. |
| EP ePad | Thermal pad | Internally connected to PGND; soldered to PCB ground plane to reduce θJA and improve thermal performance under 2 A load. |
Key Features
| Feature | Design Value |
|---|---|
| Hyper Speed Control™ architecture | Enables sub-microsecond load transient response without external compensation components - critical for CPU/FPGA dynamic voltage scaling. |
| Integrated MOSFETs | Eliminates need for external high-side P-MOS and low-side N-MOS, reducing BOM count and layout complexity in POL designs. |
| Pre-biased output startup | Allows safe turn-on into existing output voltage - essential for hot-swap and multi-rail sequencing applications without output voltage collapse. |
| Low output ripple | 16 mV peak-to-peak at 2 A load with 22 µF X7R ceramic output capacitor - avoids need for additional LC filtering in noise-sensitive signal processing stages. |
| Programmable soft-start | External capacitor sets controlled VOUT ramp rate - prevents inrush current stress on input source and avoids false power-good assertion. |
| Power Good indicator | Open-drain PG pin provides system-level fault signaling and enables sequenced power-up of downstream ICs in multi-rail systems. |
Applications
| Low-Voltage Point-of-Load (POL) | Blu-ray DVD Players |
|---|---|
Use Scenario: Powering FPGA core logic operating at 1.2 V with dynamic current draw from 10 mA to 1.8 A. IC Role / Device Role / Timing Role: Primary DC/DC step-down regulator providing tightly regulated, low-noise core voltage with fast transient recovery. Use Value: Hyper Speed Control™ ensures <500 ns recovery from 1 A load step, preventing logic errors during burst-mode processing. |
Use Scenario: Supplying 1.8 V to servo motor controller and 2.5 V to video decoder IC in optical disc drive subsystem. IC Role / Device Role / Timing Role: Dual-output POL regulator (with companion MIC23202) delivering clean, sequenced rails in compact mechanical envelope. Use Value: 2 MHz switching allows use of miniature 1 µH shielded inductors, enabling <1.5 mm solution height for slim-profile chassis design. |
| Networking Equipment | Set-Top Boxes |
Use Scenario: Generating 3.3 V for Ethernet PHY and 1.0 V for packet processor in small-form-factor switch module. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting bursty traffic loads with minimal thermal rise on dense PCB. Use Value: 90% peak efficiency and 60.7°C/W θJA allow full 2 A operation without heatsink in 60°C ambient industrial environments. |
Use Scenario: Delivering 1.2 V to ARM-based SoC and 3.3 V to HDMI interface in cost-sensitive consumer STB design. IC Role / Device Role / Timing Role: Main system power regulator meeting tight cost, size, and EMI requirements for CE certification. Use Value: Integrated MOSFETs and three-external-component requirement reduce total BOM cost and assembly steps versus discrete controller solutions. |
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, 3 A output, 0.6 V reference, but lacks pre-biased startup and has higher quiescent current (12 µA). | Higher current headroom suits more demanding SoCs; less suitable for strict pre-bias or ultra-low-IQ standby requirements. | Select if >2 A peak load or tighter output tolerance (±0.5%) is required; verify soft-start compatibility with system sequencing. |
| RT8059GJ6 | 1.5 MHz, 2 A, 0.6 V reference, integrated compensation, but no power-good output and narrower input range (2.5–5.5 V). | No PG signal limits use in systems requiring rail monitoring; slightly lower frequency increases inductor size vs. MIC23201YML-TR's 2 MHz. | Choose when simplified layout (no external compensation) outweighs need for PG indication and maximum frequency advantage. |
Compared with TPS62231DRYT and RT8059GJ6, the MIC23201YML-TR uniquely combines 2 MHz operation, pre-biased startup, and open-drain power-good in a 3 mm × 3 mm MLF - making it optimal for compact, multi-rail consumer electronics where transient response and sequencing integrity are critical.
Availability
MIC23201YML-TR is available at Aetrix Electronics and suitable for low-voltage point-of-load conversion, Blu-ray player power management, and networking equipment power supplies requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MIC23201YML-TR 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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015. Known for innovation in high-efficiency DC/DC conversion and precision analog ICs.
The MIC23201YML-TR belongs to Micrel's Hyper Speed Control™ buck regulator product line, engineered specifically for ultra-fast transient response in space-constrained, high-performance consumer and networking applications requiring minimal external components and robust thermal behavior.
FAQ
What is the minimum output voltage supported by the MIC23201YML-TR?
The MIC23201YML-TR supports output voltages as low as 0.95 V, set via an external resistor divider connected to the FB pin referenced to its 0.62 V internal feedback voltage. This enables direct powering of modern low-voltage cores such as ARM Cortex-A series processors and FPGA I/O banks without intermediate regulation stages.
Does the MIC23201YML-TR support pre-biased output startup?
Yes, the MIC23201YML-TR is explicitly designed to start up safely into a pre-biased output, preventing reverse current flow and output voltage collapse. This capability is confirmed in the datasheet's "Safe for pre-biased output" feature list and functional description, making it suitable for hot-swap and multi-rail sequencing applications.
What is the recommended input capacitor value for the MIC23201YML-TR?
The recommended input capacitor for the MIC23201YML-TR is 22 µF ceramic (X5R or X7R dielectric), placed close to the VIN and PGND pins. A minimum of 4.7 µF is acceptable, but the 22 µF value ensures adequate high-frequency bypassing at 2 MHz switching and meets ripple current handling requirements under 2 A load conditions.
How does the MIC23201YML-TR achieve ultra-fast transient response?
The MIC23201YML-TR achieves ultra-fast transient response through Micrel's proprietary Hyper Speed Control™ architecture - a voltage-mode PWM control scheme with adaptive loop dynamics that eliminates need for external compensation while maintaining stability with 1 µH–2.2 µH inductors and 4.7 µF–22 µF ceramic output capacitors.
What thermal considerations apply to the MIC23201YML-TR's MLF package?
The MIC23201YML-TR's 3 mm × 3 mm MLF package features an exposed thermal pad (ePad) that must be soldered to a PCB ground plane to achieve specified θJA = 60.7°C/W. Without proper ePad connection, junction temperature can exceed 125°C under 2 A load at 60°C ambient - thermal performance is directly dependent on copper area and via count beneath the ePad.
MIC23201YML-TR 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-TR FAQ
1.How can I place an order for MIC23201YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23201YML-TR 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-TR reliable?
The price and inventory of MIC23201YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23201YML-TR is usually 5 days.
3.What payment methods are accepted for MIC23201YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23201YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23201YML-TR?
MIC23201YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23201YML-TR 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-TR?
For technical support, including MIC23201YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23201YML-TR requirements.
6.How does Aetrix verify that MIC23201YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC23201YML-TR 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-TR meets industry standards.
7.What is the process for return or replacement of MIC23201YML-TR?
All MIC23201YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23201YML-TR, 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-TR part is unused and in its original packaging.
Return procedure for MIC23201YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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