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Microchip Technology MIC23150-55YMT-TR
- Part No.:
- MIC23150-55YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-UFDFN
- Datasheet:
-
MIC23150-55YMT-TR.pdf
- Description:
- IC REG BUCK 1.35V 2A 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,731
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Product details
Overview
MIC23150-55YMT from Micrel is a 4MHz, 2A synchronous buck regulator with HyperLight Load® mode, designed as a core voltage supply for portable processors. It delivers 1.35V output at up to 2A from a 2.7–5.5V input, achieves 93% peak efficiency in CCM, and maintains 87% efficiency at 1mA load-enabling extended battery life in space-constrained handheld devices.
For engineers reviewing the MIC23150-55YMT datasheet, MIC23150-55YMT pinout, MIC23150-55YMT application, or MIC23150-55YMT equivalent, key selection criteria include its 23µA quiescent current, 14mVpp ripple in HyperLight Load mode, 8-pin 2mm × 2mm Thin DFN package, and support for ultra-small 0.47µH inductors and 2.2µF output capacitors.
Technical Context
The MIC23150-55YMT implements a proprietary minimum-on/off-time control architecture enabling seamless transition between pulse-frequency modulation (PFM) at light loads and fixed 4MHz PWM in continuous conduction mode above ~120mA. Its integrated PMOS/NMOS synchronous switches eliminate external diode losses and enable ultra-fast transient response critical for processor core rail regulation.
It features dedicated SNS feedback routing for high-accuracy output sensing, separate AGND and PGND pins to isolate analog bias and power return paths, and built-in thermal shutdown (160°C) with 20°C hysteresis. The 0.01µA shutdown current and 2.45–2.65V undervoltage lockout threshold ensure robust start-up and low-power retention in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.35V - eliminates external resistor divider, reduces BOM count and layout sensitivity. |
| Max Output Current | 2A - supports modern low-voltage processor cores without external current boosting. |
| Switching Frequency | 4MHz - enables use of sub-1µH inductors and <1mm solution height, minimizing board area. |
| Quiescent Current | 23µA - extends runtime in always-on or standby modes of portable electronics. |
| Output Ripple | 14mVpp in HyperLight Load mode - maintains clean supply for noise-sensitive RF/baseband ICs. |
| Shutdown Current | 0.01µA - ensures negligible battery drain during deep sleep states. |
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), Li-polymer, and 3.3V/5V system rails. |
| Junction Temp Range | −40°C to +125°C - qualified for industrial and automotive cabin-temperature applications. |
Pinout & Package
Package: 8-pin 2mm × 2mm Thin DFN (TDFN), 0.5mm pitch, exposed thermal pad, Pb-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - SW | Switch Node | Drives inductor directly; high dv/dt node requiring short, low-inductance routing away from sensitive signals. |
| 3 - EN | Enable Input | Logic-compatible control (0.5–1.2V threshold); must be actively driven-floating not allowed. |
| 4 - SNS | Output Voltage Sense | High-precision feedback path; requires Kelvin connection to VOUT near output capacitor for ±2.5% accuracy. |
| 5 - AGND | Analog Ground | Reference for internal error amplifier and bandgap; connects to star ground point shared with CIN/COUT. |
| 6, 7 - VIN | Power Input | Accepts 2.7–5.5V; requires ≥2.2µF ceramic bypass capacitor placed adjacent to pins 6/7 and PGND. |
| 8 - PGND | Power Ground | High-current return path for MOSFET switching; routed separately from AGND to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Proprietary PFM/PWM hybrid control delivering >87% efficiency at 1mA while maintaining ultra-fast transient response. |
| Ultra-Low Quiescent Current | 23µA operating current enables multi-week standby in IoT sensors and wearable devices. |
| Minimal External Components | Only three components required: input cap, output cap, and inductor-reducing BOM cost and assembly steps. |
| Thermal & Current Protection | Integrated thermal shutdown (160°C) and cycle-by-cycle current limit (2.2–3.4A) prevent damage under overload or fault. |
| Small Solution Size | Supports 0.47µH inductors and 2.2µF output caps, enabling total solution height <1mm and footprint <12mm². |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
|
Use Scenario: Powering application processor core and memory I/O rails in LTE smartphones with dynamic load profiles. IC Role / Device Role / Timing Role: Primary DC-DC core regulator delivering stable 1.35V at up to 2A with sub-100ns load-step response. Use Value: HyperLight Load® sustains >90% efficiency across 10µA–2A load range, extending talk time without thermal throttling. |
Use Scenario: Supplying GPS baseband SoC and RF front-end in compact automotive-grade navigation modules. IC Role / Device Role / Timing Role: High-efficiency step-down regulator with low-noise output for precision timing circuits and ADC references. Use Value: 14mVpp ripple in light-load mode prevents clock jitter degradation in GNSS receivers. |
| WiFi/WiMax Modules | Solid State Drives / Memory |
|
Use Scenario: Regulating VDDIO for 802.11ac WLAN chipsets with bursty transmit/receive current demands. IC Role / Device Role / Timing Role: Fast-transient buck converter supporting rapid 0–1.5A load steps during packet transmission. Use Value: 4MHz switching and optimized loop response minimize voltage droop during 200ns RF bursts. |
Use Scenario: Providing core voltage to NAND flash controllers and DRAM buffers in M.2 SSDs with tight height constraints. IC Role / Device Role / Timing Role: Compact, high-density power stage delivering regulated 1.35V in <1mm vertical envelope. Use Value: 2mm × 2mm TDFN package and support for 0.47µH inductors enable full power solution within 12mm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRVR | Fixed 1.2V output; 3MHz switching; 25µA IQ; no HyperLight Load®-uses standard PFM. | Lower output voltage; slightly higher light-load ripple (25mVpp); less optimized for sub-100mA transient fidelity. | Select when 1.2V rail is required and cost sensitivity outweighs ultra-low-IQ advantage. |
| RT8059GJ6 | Adjustable output (0.6–5.5V); 2A; 2.5MHz; 30µA IQ; no proprietary light-load mode. | Requires external resistive divider; larger solution size due to lower frequency and higher IQ; lacks 14mVpp ripple spec. | Choose when design requires programmable output or compatibility with existing RT8059-based layouts. |
Compared with TPS62260DRVR and RT8059GJ6, the MIC23150-55YMT offers superior light-load efficiency (87% at 1mA vs. ≤82%), lower output ripple in PFM mode, and a fixed 1.35V output eliminating feedback resistor errors-making it optimal for space- and battery-life-critical portable core rails.
Availability
MIC23150-55YMT is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, WiFi modules, and solid-state drives requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MIC23150-55YMT 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 developed to address the demand for ultra-compact, high-efficiency buck regulators in battery-powered handheld devices-emphasizing minimal quiescent current, fast transient response, and minimal external component count.
FAQ
What is the nominal output voltage of the MIC23150-55YMT?
The MIC23150-55YMT has a factory-trimmed fixed output voltage of 1.35V. This value is laser-adjusted during production and does not require external feedback resistors-ensuring ±2.5% accuracy over temperature and load, and eliminating layout sensitivity associated with resistor dividers. The MIC23150-55YMT is part of a family offering multiple fixed outputs including 1.0V, 1.2V, 1.8V, and 3.3V variants.
Does the MIC23150-55YMT support automatic mode transition between PFM and PWM?
Yes, the MIC23150-55YMT automatically transitions between HyperLight Load® (PFM-like) mode below ~120mA and fixed 4MHz PWM mode above that threshold. This transition is seamless and internally managed-no external control or mode-select pins are required. The MIC23150-55YMT maintains regulation throughout both modes using the same SNS feedback path and internal error amplifier.
What is the recommended minimum output capacitance for stable operation of the MIC23150-55YMT?
The MIC23150-55YMT is designed for stable operation with a minimum 2.2µF X5R or X7R ceramic output capacitor. Using smaller values may compromise transient response and increase output ripple beyond the specified 14mVpp. A 4.7µF capacitor (e.g., TDK C1608X5R0J475K) is recommended for optimal performance, especially in applications with fast load steps such as processor core rails.
Can the MIC23150-55YMT operate with an inductor smaller than 1µH?
Yes-the MIC23150-55YMT supports inductors as small as 0.47µH, which is explicitly validated in the datasheet. Using a 0.47µH inductor improves transient response and enables ultra-compact designs, though it increases peak inductor current and may raise output ripple slightly. The MIC23150-55YMT remains stable across the full 0.47–2.2µH range with ≥2.2µF output capacitance.
What protection features are integrated into the MIC23150-55YMT?
The MIC23150-55YMT integrates cycle-by-cycle overcurrent limiting (trip point 2.2–3.4A), thermal shutdown at 160°C with 20°C hysteresis, and undervoltage lockout (UVLO) with 2.55V turn-on threshold and 75mV hysteresis. These protections operate independently of external circuitry and remain active across the full −40°C to +125°C junction temperature range, ensuring robust operation in portable and industrial environments.
MIC23150-55YMT-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):
- 1.35V
- 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)
MIC23150-55YMT-TR FAQ
1.How can I place an order for MIC23150-55YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23150-55YMT-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 MIC23150-55YMT-TR reliable?
The price and inventory of MIC23150-55YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23150-55YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23150-55YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23150-55YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23150-55YMT-TR?
MIC23150-55YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23150-55YMT-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 MIC23150-55YMT-TR?
For technical support, including MIC23150-55YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23150-55YMT-TR requirements.
6.How does Aetrix verify that MIC23150-55YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23150-55YMT-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 MIC23150-55YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23150-55YMT-TR?
All MIC23150-55YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23150-55YMT-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 MIC23150-55YMT-TR part is unused and in its original packaging.
Return procedure for MIC23150-55YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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