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Microchip Technology MIC23156-0YML-TR
- Part No.:
- MIC23156-0YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 17-VFQFN, 17-MLF®
- Datasheet:
-
MIC23156-0YML-TR.pdf
- Description:
- IC REG BUCK PROG 1.5A 17MLF
- Quantity:
- Payment:
- Shipping:
Inventory:3,744
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Product details
Overview
MIC23156-0YML-TR from Microchip Technology is a 1.5A, 3 MHz synchronous buck regulator with HyperLight Load® mode and I²C-controlled dynamic voltage scaling (DVS), designed for processor core supply in space-constrained portable systems. It delivers 0.7–2.4V output in 10 mV steps, ±1.5% accuracy over –40°C to +125°C, and achieves up to 93% peak efficiency using only a 1 µH inductor and 2.2 µF ceramic capacitor.
For engineers reviewing the MIC23156-0YML-TR datasheet, MIC23156-0YML-TR pinout, MIC23156-0YML-TR application, or MIC23156-0YML-TR equivalent, this device supports fast-mode-plus I²C (1 MHz), safe startup into pre-biased outputs, programmable soft-start via external capacitor, and thermal/current-limit protection - critical for SSD, mobile handset, and Wi-Fi module power design.
Technical Context
The MIC23156-0YML-TR implements a proprietary HyperLight Load® control architecture that dynamically transitions between discontinuous conduction mode (DCM) at light loads and continuous conduction mode (CCM) at >200 mA, maintaining high efficiency across the full 0–1.5A range. Its 3 MHz fixed-frequency PWM operation in CCM ensures low output ripple and fast transient response, while the integrated 10-bit DAC enables precise 10 mV DVS steps via I²C address 0xB7.
It features dual input domains: PVIN powers the high-current switching stage (2.7–5.5V), while AVIN supplies analog circuitry through an RC-filtered path from PVIN. The device integrates both high-side PMOS (0.15 Ω typical RSWON) and low-side NMOS switches, enabling synchronous rectification and eliminating external diode requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5 A continuous - supports modern application processors and SoCs requiring stable core rail current. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and wide-input industrial rails. |
| Output Voltage Range | 0.7 V to 2.4 V in 10 mV steps - enables fine-grained DVS for dynamic power management in mobile CPUs/GPUs. |
| Switching Frequency | 3 MHz nominal - allows ultra-small passive components (1 µH inductor, 2.2 µF output cap) and compact PCB layout. |
| Output Accuracy | ±1.5 % over temperature - ensures reliable core voltage regulation under thermal stress in handheld devices. |
| Quiescent Current | 30 µA (no switching) - extends battery life in standby/sleep modes without sacrificing wake-up speed. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment, industrial SSDs, and ruggedized portable electronics. |
Pinout & Package
Package: 16-ball, 0.4 mm pitch, 1.81 mm × 1.71 mm Wafer Level Chip-Scale Package (WLCSP). Compact footprint ideal for ultra-thin mobile and embedded modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | I²C Clock Input | Fast Mode Plus (1 MHz) clock line; requires 4.7 kΩ pull-up to VI2C for noise-immune bus timing. |
| SDA | I²C Data I/O | Open-drain bidirectional data line; 4.7 kΩ pull-up required; supports read-back of register status. |
| SNS | Output Voltage Sense | Direct connection to VOUT near output capacitor - critical for ±1.5% regulation accuracy and load-transient immunity. |
| SS | Soft-Start Control | External capacitor sets ramp time (e.g., 120 pF → ~250 µs); prevents inrush current and overshoot during enable. |
| VSEL | Register Select | Logic-level pin selects between two I²C-programmable output voltage registers - enables dual-voltage boot/config scenarios. |
| PGOOD | Power-Good Indicator | Open-drain output asserts high when VOUT ≥ 86–96% of target - used for system sequencing and fault monitoring. |
| EN | Enable Control | Active-high logic input; deactivates regulator and reduces supply current to 0.1 µA in shutdown. |
| SW | Switch Node | High-speed internal PMOS/NMOS node connecting to inductor - must be routed short and away from sensitive analog traces. |
| PVIN / PGND | Power Input / Ground | High-current paths for switching stage; require low-inductance decoupling (≥2.2 µF ceramic) and separate ground plane from AGND. |
| AVIN / AGND | Analog Supply / Ground | Low-noise domain for control circuitry; tied to PVIN via 10 Ω RC filter to suppress switching noise coupling. |
| VI2C | I²C Bus Power | Supplies I²C interface logic level - must match host controller's I²C voltage (1.8 V, 3.3 V, or 5 V). |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Enables DCM operation below ~200 mA, delivering >85% efficiency at 10 mA - essential for extended battery standby in always-on subsystems. |
| I²C Dynamic Voltage Scaling | 10 mV resolution over 0.7–2.4 V range via Fast Mode Plus (1 MHz) interface - supports real-time DVFS in ARM Cortex-A/R cores. |
| Pre-Biased Output Startup | Safe enable sequence prevents reverse current flow when VOUT is already charged - eliminates need for external blocking diodes in multi-rail systems. |
| Thermal & Current Protection | 160°C shutdown with 20°C hysteresis and 1.7–5.1 A DC current limit - protects against overload, short-circuit, and PCB thermal failure. |
| Ultra-Low Quiescent Current | 30 µA operating current with no switching - reduces idle power loss by >5× vs. conventional 100–200 µA buck regulators. |
Applications
| Mobile Handsets | Solid-State Drives (SSD) |
|---|---|
Use Scenario: Core voltage supply for application processors (e.g., Qualcomm Snapdragon, MediaTek Dimensity) during active and burst-load operation. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering dynamically scaled VCORE with sub-100 µs transient response to CPU frequency changes. Use Value: Enables aggressive DVFS policies while maintaining <±1.5% output accuracy and <50 mV undershoot/overshoot during 0–1.5A load steps. | Use Scenario: 1.2 V or 1.8 V power rail for NAND flash controllers and DRAM buffers in M.2 and U.2 SSD modules. IC Role / Device Role / Timing Role: High-efficiency, low-noise core regulator supporting PCIe Gen4/Gen5 link training and sustained write bursts. Use Value: Delivers 93% peak efficiency at 1.5A with minimal thermal rise in thermally constrained SSD enclosures. |
| Wi-Fi/WiMAX Modules | Portable Medical Devices |
Use Scenario: Regulated supply for RF transceivers (e.g., QCA9377, Intel AX200) requiring clean, low-ripple voltage during TX/RX state transitions. IC Role / Device Role / Timing Role: Low-noise buck converter with HyperLight Load® minimizing switching artifacts in adjacent RF front-end circuits. Use Value: Achieves <10 mVpp output ripple across 10 mA–1.5A using only 2.2 µF ceramic output capacitance - reduces EMI filtering overhead. | Use Scenario: Battery-powered portable ultrasound or glucose monitors requiring long runtime and clinical-grade reliability. IC Role / Device Role / Timing Role: Primary power management IC for mixed-signal SoC with strict quiescent current and thermal safety requirements. Use Value: 30 µA IQ and –40°C to +125°C qualification ensure >72-hour operation on coin-cell or LiPo, with built-in thermal shutdown for patient safety. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC23154-0YML-TR | Same package and pinout; lower 1.2A output current rating and 2.4 MHz switching frequency. | Suitable for lower-power SoCs (e.g., Cortex-M7, microcontrollers) but not adequate for 1.5A processor cores. | Select when peak load ≤1.2A and board layout reuse is prioritized over max current headroom. |
| TPS62864B0RQYR | 3 MHz, 1.5A, I²C-programmable (0.3–1.95 V), 16-pin WQFN (2.0 × 2.0 mm); lacks HyperLight Load® and pre-bias startup. | Better suited for general-purpose core rails where ultra-low IQ (<15 µA) is secondary to cost and footprint. | Choose if system does not require sub-100 µA IQ or safe startup into pre-biased outputs. |
Compared with MIC23154-0YML-TR, the MIC23156-0YML-TR provides 25% higher current capability and optimized light-load efficiency; versus TPS62864B0RQYR, it offers superior transient response and robustness in battery-powered portable designs with dynamic voltage scaling.
Availability
MIC23156-0YML-TR is available at Aetrix Electronics and suitable for mobile handsets, solid-state drives (SSD), and Wi-Fi/WiMAX modules requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MIC23156-0YML-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
Microchip Technology Inc. is a leading provider of microcontroller, analog, FPGA, and power management semiconductors, serving automotive, industrial, communications, and consumer markets with vertically integrated design and manufacturing.
The MIC23156 product line targets high-efficiency, space-constrained power delivery for portable and embedded processors - emphasizing dynamic voltage scaling, ultra-low quiescent current, and seamless integration with I²C-based SoC power management firmware.
FAQ
What is the I²C address of the MIC23156-0YML-TR?
The MIC23156-0YML-TR uses a fixed 7-bit I²C address of 0xB7 (1011011 binary) for write operations and 0xB6 for read operations. This address is hard-coded and not user-configurable. The device supports Fast Mode Plus timing (1 MHz clock rate) and requires standard open-drain pull-ups on SCL and SDA lines referenced to the VI2C supply voltage.
Does the MIC23156-0YML-TR support startup into a pre-biased output?
Yes, the MIC23156-0YML-TR supports safe startup into a pre-biased output voltage. Its internal control architecture prevents reverse current flow during enable, eliminating the risk of damaging external components or destabilizing adjacent rails. This feature is confirmed in the datasheet's General Description and Functional Description sections and applies directly to the MIC23156-0YML-TR in both WLCSP and QFN packages.
What is the minimum recommended soft-start capacitor value for the MIC23156-0YML-TR?
The minimum recommended soft-start capacitor value for the MIC23156-0YML-TR is 120 pF, connected between the SS pin and AGND. This yields a typical soft-start time of approximately 250 µs to reach 90% of the target output voltage. Using a smaller capacitor risks excessive inrush current and output overshoot; larger values increase ramp time linearly per the formula tSS ≈ 820 × 10³ × ln(10) × CSS.
Can the MIC23156-0YML-TR operate with a 1 µH inductor and 2.2 µF output capacitor?
Yes, the MIC23156-0YML-TR is explicitly characterized and optimized for use with a 1 µH inductor and 2.2 µF ceramic output capacitor - as stated in the General Description, Typical Application Schematic, and Electrical Characteristics tables. This combination enables a total solution height under 1 mm and meets all stability, efficiency, and transient performance specifications across the full –40°C to +125°C junction temperature range.
What protection features are integrated into the MIC23156-0YML-TR?
The MIC23156-0YML-TR integrates thermal shutdown (160°C trip with 20°C hysteresis), cycle-by-cycle current limiting (1.7–5.1 A DC limit), undervoltage lockout (2.55 V nominal with 75 mV hysteresis), and safe startup into pre-biased outputs. All protections are internal and require no external components. These features are validated across temperature and process corners and apply identically to the MIC23156-0YML-TR WLCSP variant.
MIC23156-0YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 17-VFQFN, 17-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.7V
- Voltage - Output (Max):
- 2.4V
- Current - Output:
- 1.5A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 17-MLF® (2.8x2.5)
MIC23156-0YML-TR FAQ
1.How can I place an order for MIC23156-0YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23156-0YML-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 MIC23156-0YML-TR reliable?
The price and inventory of MIC23156-0YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23156-0YML-TR is usually 5 days.
3.What payment methods are accepted for MIC23156-0YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23156-0YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23156-0YML-TR?
MIC23156-0YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23156-0YML-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 MIC23156-0YML-TR?
For technical support, including MIC23156-0YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23156-0YML-TR requirements.
6.How does Aetrix verify that MIC23156-0YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC23156-0YML-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 MIC23156-0YML-TR meets industry standards.
7.What is the process for return or replacement of MIC23156-0YML-TR?
All MIC23156-0YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23156-0YML-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 MIC23156-0YML-TR part is unused and in its original packaging.
Return procedure for MIC23156-0YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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