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Microchip Technology MIC23150-4YMT-TR
- Part No.:
- MIC23150-4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-UFDFN
- Datasheet:
-
MIC23150-4YMT-TR.pdf
- Description:
- IC REG BUCK 1.2V 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:466
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Product details
Overview
MIC23150-4YMT from Micrel is a 4MHz synchronous buck regulator delivering 2A output at 1.2V nominal, featuring HyperLight Load® mode for ultra-fast transient response and high light-load efficiency-designed for processor core supply in space-constrained portable electronics using only three external components.
For engineers reviewing the MIC23150-4YMT datasheet, MIC23150-4YMT pinout, MIC23150-4YMT application, or MIC23150-4YMT equivalent, key selection criteria include its 23µA quiescent current, 14mVpp ripple in HyperLight Load mode, 8-pin 2mm × 2mm TDFN package, and compatibility with 0.47µH inductors and 2.2µF ceramic output capacitors.
Technical Context
The MIC23150-4YMT employs a proprietary minimum-on/off-time control architecture enabling seamless transition between discontinuous conduction mode (PFM) below ~120mA and continuous conduction mode (PWM) at 4MHz above that threshold. Its integrated PMOS/NMOS synchronous switch pair eliminates external diode losses.
HyperLight Load® operation maintains 87% efficiency at 1mA while achieving 93% peak efficiency in CCM, with output voltage accuracy of ±2.5% and built-in thermal shutdown (160°C) and current limit (2.2–3.4A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion and USB-powered systems without pre-regulation. |
| Output Voltage | 1.2V nominal - fixed-output variant optimized for low-voltage processor cores and SoC I/O rails. |
| Max Output Current | 2A - sufficient for ARM Cortex-A/M series processors and FPGA core domains in portable devices. |
| Switching Frequency | 4MHz - enables use of sub-1µH inductors and <1mm solution height, reducing EMI filter size. |
| Quiescent Current | 23µA typical - extends battery life in always-on subsystems such as GPS receivers and Wi-Fi standby modes. |
| Output Ripple | 14mVpp in HyperLight Load mode - meets tight noise budgets for RF-sensitive applications like WLAN/BT modules. |
| Shutdown Current | 0.01µA - ensures negligible battery drain during deep-sleep states in handheld devices. |
Pinout & Package
Package: 8-pin 2mm × 2mm Thin DFN (TDFN), Pb-free, RoHS-compliant, with NiPdAu lead finish and halogen-free mold compound. Thermal resistance θJA = 90°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - SW | Power Switch Node | Connects directly to inductor; carries high-frequency pulsed current-requires short, low-inductance routing away from analog traces. |
| 3 - EN | Enable Input | Logic-compatible input (0.5–1.2V threshold); pulls device into 0.01µA shutdown state when low-must not float. |
| 4 - SNS | Voltage Feedback Sense | High-impedance feedback node; must connect directly to VOUT near output capacitor to reject PCB IR drop errors. |
| 5 - AGND | Analog Ground Reference | Reference for internal error amplifier and bias circuitry; requires separate low-noise ground path from PGND. |
| 6, 7 - VIN | Input Power Supply | Dual pins reduce trace resistance/inductance; require ≥2.2µF ceramic bypass capacitor placed adjacent to PGND. |
| 8 - PGND | Power Ground Return | High-current return path for MOSFET switching; forms compact loop with VIN and SW to minimize EMI radiation. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Proprietary PFM/PWM hybrid control enabling 87% efficiency at 1mA and ultra-fast load transient recovery (<10µs). |
| Ultra-Small Solution Size | Supports 0.47µH inductor and 2.2µF output capacitor-total footprint <15mm² and height <1mm. |
| Low-Ripple Operation | 14mVpp ripple in light-load mode and 5mVpp in full PWM mode-eliminates need for additional LC filtering in noise-sensitive RF sections. |
| Integrated Protection | Thermal shutdown (160°C, 20°C hysteresis) and cycle-by-cycle current limiting (2.2–3.4A) prevent damage under overload or short-circuit conditions. |
| Soft-Start Function | 115µs controlled ramp-up prevents inrush current and output overshoot during power-up-no external timing component required. |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
Use Scenario: Powering application processor core and memory I/O rails in slim smartphones with aggressive thermal and height constraints. IC Role / Device Role / Timing Role: Primary DC-DC converter supplying regulated 1.2V core voltage with dynamic load handling during burst-mode CPU activity. Use Value: HyperLight Load® sustains >85% efficiency across sleep-to-active transitions, extending talk time without increasing battery capacity. | Use Scenario: Providing clean, low-noise 1.2V supply to GPS baseband ICs and RF front-end modules in handheld navigation units. IC Role / Device Role / Timing Role: Noise-sensitive power rail generator where output ripple directly impacts position acquisition time and signal sensitivity. Use Value: 14mVpp ripple in HyperLight Load mode avoids interference with 1.575GHz L1 GPS band, improving cold-start TTFF by up to 30%. |
| Wi-Fi/WiMax Modules | Solid State Drives / Memory |
Use Scenario: Powering 2.4/5GHz Wi-Fi SoCs (e.g., QCA9377, BCM4356) in compact IoT gateways and portable hotspots. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator responding to rapid current spikes during packet transmission bursts. Use Value: 4MHz switching and fast transient response suppress voltage droop during 150mA–2A load steps, preventing MAC layer retransmissions. | Use Scenario: Supplying 1.2V core voltage to NAND flash controllers and DRAM buffers in M.2 SATA and mSATA SSDs. IC Role / Device Role / Timing Role: Compact, thermally efficient regulator operating continuously in confined heatsink-less enclosures. Use Value: 90°C/W θJA and 93% peak efficiency minimize self-heating, maintaining controller junction temperature <85°C during sustained 4K random write workloads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRYT | 3MHz fixed-frequency PWM; 2.05V to 6V input; 1.2V output; 2A max; 25µA IQ; 12-pin 2mm × 2mm WSON. | Larger package (12-pin vs. 8-pin); higher IQ; no PFM mode-less optimal for intermittent low-power states. | Prefer when strict 3MHz EMI compliance is required and board layout allows extra pin count and area. |
| RT8059GJ6F | 2.5MHz PWM; 2.5V to 5.5V input; adjustable 0.6–5.5V output; 2A max; 30µA IQ; 6-pin 2mm × 2mm DFN. | Adjustable output (not fixed 1.2V); fewer pins but lacks dedicated SNS pin-reduced regulation accuracy under PCB IR drop. | Prefer when system requires multiple output voltages or cost-sensitive BOM with minimal external components. |
Compared with TPS62231DRYT and RT8059GJ6F, the MIC23150-4YMT uniquely combines fixed 1.2V output, 4MHz operation, HyperLight Load® PFM/PWM transition, and an 8-pin TDFN with separated AGND/PGND-enabling smaller total solution size and superior light-load efficiency in battery-constrained portable designs.
Availability
MIC23150-4YMT is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, Wi-Fi modules, and solid-state drives requiring stable component supply with consistent parametric performance and long-term lifecycle support.
Supply support for MIC23150-4YMT 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 high-performance analog, power, timing, and communications ICs before its acquisition by Microchip Technology in 2015. It pioneered advanced DC-DC architectures for portable electronics.
The MIC23150 product line was designed specifically for ultra-compact, high-efficiency power delivery in battery-powered consumer devices-emphasizing minimal solution size, low quiescent current, and robust transient response under dynamic loads.
FAQ
What is the output voltage tolerance of the MIC23150-4YMT over temperature and load?
The MIC23150-4YMT provides ±2.5% output voltage accuracy across –40°C to +125°C junction temperature and 20mA to 500mA load range, measured with proper SNS placement and recommended 4.7µF output capacitor. This tolerance holds under line regulation (0.3%/V) and load regulation (0.75%/A) conditions specified in the datasheet.
Does the MIC23150-4YMT require an external compensation network?
No, the MIC23150-4YMT is internally compensated and stable with 0.47µH to 2.2µH inductors and ≥2.2µF X5R/X7R ceramic output capacitors. No external RC network is needed-simplifying layout and reducing BOM count while maintaining phase margin >45° across all operating conditions.
How does the MIC23150-4YMT achieve ultra-low output ripple in HyperLight Load® mode?
The MIC23150-4YMT achieves 14mVpp ripple in HyperLight Load® mode via its proprietary minimum-on/off-time control, which minimizes switching artifacts during light loads, combined with low-ESR ceramic capacitors and optimized internal gate drive timing-eliminating the need for post-regulation filtering in RF-sensitive applications.
Can the MIC23150-4YMT operate with a 0.47µH inductor, and what is the trade-off?
Yes, the MIC23150-4YMT is fully characterized for 0.47µH inductors, yielding fastest transient response and smallest solution footprint. Trade-offs include higher peak inductor current (requiring ≥2.5A saturation rating) and slightly increased RMS losses versus 1–2.2µH alternatives-but still maintains >85% efficiency at 500mA with proper layout.
What is the recommended PCB layout practice for AGND and PGND separation in the MIC23150-4YMT?
AGND and PGND must be routed as separate copper polygons on the same layer, joined at a single point near the IC's ground pins (pins 5, 8). AGND carries only bias currents; PGND handles high di/dt switching return paths. A split ground plane with controlled connection minimizes noise coupling into the feedback (SNS) and enable (EN) circuits.
MIC23150-4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 8-UFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
MIC23150-4YMT-TR FAQ
1.How can I place an order for MIC23150-4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23150-4YMT-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 MIC23150-4YMT-TR reliable?
The price and inventory of MIC23150-4YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23150-4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23150-4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23150-4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23150-4YMT-TR?
MIC23150-4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23150-4YMT-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 MIC23150-4YMT-TR?
For technical support, including MIC23150-4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23150-4YMT-TR requirements.
6.How does Aetrix verify that MIC23150-4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23150-4YMT-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 MIC23150-4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23150-4YMT-TR?
All MIC23150-4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23150-4YMT-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 MIC23150-4YMT-TR part is unused and in its original packaging.
Return procedure for MIC23150-4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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