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Microchip Technology MIC23156-0YML-T5
- Part No.:
- MIC23156-0YML-T5
- Manufacturer:
- Microchip Technology
- Package:
- 17-VFQFN, 17-MLF®
- Datasheet:
-
MIC23156-0YML-T5.pdf
- Description:
- IC REG BUCK PROG 1.5A 17MLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC23156-0YML-T5 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% output voltage accuracy over temperature, and operates from 2.7V to 5.5V input.
For engineers reviewing the MIC23156-0YML-T5 datasheet, MIC23156-0YML-T5 pinout, MIC23156-0YML-T5 application, or MIC23156-0YML-T5 equivalent, this device supports fast-mode-plus I²C (1 MHz), safe start-up into pre-biased outputs, programmable soft-start via external capacitor, and stable operation with only 1 µH inductor and 2.2 µF ceramic output capacitor.
Technical Context
The MIC23156-0YML-T5 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 load range. Its 3 MHz fixed-frequency CCM operation enables ultra-small passive component selection.
I²C interface supports standard (100 kHz), fast (400 kHz), and fast-mode-plus (1 MHz) clock rates with address 0xB7 (write) / 0xB6 (read); VSEL pin allows hardware-selectable dual-voltage register access without I²C traffic, while PGOOD provides open-drain power-good signaling with 86–96% threshold hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 1.5A DC - supports modern low-voltage processor cores requiring high transient current capability. |
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and multi-rail system supplies. |
| Output Voltage Range | 0.7V to 2.4V in 10 mV steps - enables precise DVS for SoC DVFS, reducing dynamic power by up to 30%. |
| Output Accuracy | ±1.5% over –40°C to +125°C - ensures reliable core voltage regulation under thermal stress without margining. |
| Switching Frequency | 3 MHz (CCM) - allows use of sub-1 mm height 1 µH inductors and minimizes output ripple with small 2.2 µF ceramic capacitors. |
| Quiescent Current | 30 µA (no switching) - extends battery life in always-on subsystems such as modem sleep states or sensor hubs. |
| Thermal Shutdown | 160°C threshold with 20°C hysteresis - protects against sustained overload or poor PCB thermal design without latch-up. |
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 mobile and SSD applications where board area is constrained.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | I²C Clock Input | Fast-mode-plus (1 MHz) clock input; requires 4.7 kΩ pull-up to VI2C for noise immunity and timing compliance. |
| SDA | I²C Data I/O | Open-drain bidirectional data line; 4.7 kΩ pull-up required; supports read-back of status registers including PGOOD state. |
| SNS | Output Voltage Sense | Direct connection to VOUT near output capacitor - critical for ±1.5% accuracy; avoids IR drop errors in PCB traces. |
| SS | Soft-Start Timing | Connects external capacitor (e.g., 120 pF) to AGND to set ~250 µs VOUT ramp time - prevents inrush current and overshoot during enable. |
| VSEL | Dual-Voltage Register Select | Logic-high selects Buck Register 2; logic-low selects Buck Register 1 - enables hardware-based voltage switching without I²C transaction overhead. |
| PGOOD | Power-Good Indicator | Open-drain output asserting high when VOUT ≥ 86% of nominal - used for sequencing control and fault monitoring with external 5 kΩ+ pull-up to VOUT. |
| EN | Enable Control | Active-high logic input; enables regulator when ≥1.2V, disables with <0.5V - reduces supply current to 0.1 µA in shutdown. |
| SW | Switch Node | Internal PMOS/NMOS switch output - connects directly to inductor; requires tight layout to minimize EMI and ringing. |
| PGND / AGND | Separate Ground Returns | PGND carries high-switching-current return path; AGND serves analog control circuitry - must be joined at single point near CIN/COUT to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Enables >90% efficiency at 10 mA load while maintaining ultra-fast transient response - eliminates need for separate LDOs in low-power states. |
| I²C Dynamic Voltage Scaling | 10 mV-step programmable VOUT (0.7–2.4V) via 1 MHz Fast-mode-plus bus - supports real-time DVFS in application processors without firmware latency. |
| Pre-Biased Output Start-Up | Safe ramp-up into existing VOUT bias - prevents reverse current flow and system instability during hot-plug or multi-rail sequencing. |
| Thermal & Current Protection | Integrated 160°C thermal shutdown with 20°C hysteresis and 1.7–5.1A current limit - eliminates need for external fault management circuitry. |
| Ultra-Low Quiescent Current | 30 µA operating IQ at zero load - extends battery runtime in always-on IoT edge nodes and wearable sensors. |
Applications
| Mobile Handsets | Solid-State Drives (SSD) |
|---|---|
Use Scenario: Powering application processor cores (e.g., ARM Cortex-A series) during active and DVFS-adjusted states in smartphones and tablets. IC Role / Device Role / Timing Role: Primary core voltage regulator with dynamic I²C-controlled VOUT adjustment synchronized to CPU workload changes. Use Value: Enables >30% reduction in dynamic power consumption via precise 10 mV DVS steps while maintaining ±1.5% regulation accuracy across –40°C to +125°C. | Use Scenario: Supplying 1.2V/1.8V NAND flash controller and DRAM cache in M.2 and U.2 SSD modules. IC Role / Device Role / Timing Role: High-efficiency, low-noise buck converter delivering stable core rail with minimal solution height (<1 mm). Use Value: Achieves 93% peak efficiency using only 1 µH inductor and 2.2 µF ceramic capacitor - reduces BOM cost and PCB area in dense SSD layouts. |
| WiFi/WiBro Modules | Portable Medical Devices |
Use Scenario: Regulating RF SoC core voltage (e.g., QCA9377, Intel AX200) in compact wireless modules with strict thermal limits. IC Role / Device Role / Timing Role: Synchronous buck regulator supporting burst-mode transmit/receive cycles with fast load transient response. Use Value: HyperLight Load® maintains >85% efficiency at 50 mA idle current and recovers within 5 µs from 50 mA → 1.5A load step - preserves signal integrity and battery life. | Use Scenario: Powering low-power microcontrollers (e.g., PIC32MZ, STM32L4) and analog front-ends in handheld diagnostic tools and glucose meters. IC Role / Device Role / Timing Role: Primary system supply with safe start-up into pre-biased rails and ultra-low quiescent current for extended standby. Use Value: 30 µA IQ and 0.1 µA shutdown current extend single-CR2032 battery life beyond 12 months in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62130ARGTR | Fixed 3.3V/1.8V output; no I²C interface; 2.5 MHz switching; ±2% accuracy; 1.2A max output. | Lacks dynamic voltage scaling - suitable only for fixed-rail applications like peripheral I/O or memory interfaces. | Select when I²C control and sub-1.5A current are unnecessary; offers lower cost and simpler layout. |
| RTQ2132BGQW | I²C-programmable (0.6–3.3V), 2.5A output, 2.2 MHz, ±1% accuracy, integrated MOSFETs; larger 3 mm × 3 mm QFN package. | Higher current and tighter accuracy - better suited for FPGA core rails or AI accelerators requiring >1.5A. | Choose when higher output current, improved accuracy, or wider VOUT range justifies larger footprint and higher cost. |
Compared with TPS62130ARGTR and RTQ2132BGQW, the MIC23156-0YML-T5 uniquely balances ultra-compact WLCSP packaging, 1 MHz I²C DVS, and HyperLight Load® efficiency - making it optimal for space-constrained, battery-powered processor core supplies where dynamic power management is essential.
Availability
MIC23156-0YML-T5 is available at Aetrix Electronics and suitable for mobile handsets, solid-state drives (SSD), and WiFi/WiBro modules requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MIC23156-0YML-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
Microchip Technology Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability semiconductor products.
The MIC23156-0YML-T5 belongs to Microchip's HyperLight Load® buck regulator family, engineered specifically for battery-powered portable electronics requiring ultra-small footprint, dynamic voltage scaling, and best-in-class light-load efficiency.
FAQ
What is the recommended input and output capacitor configuration for MIC23156-0YML-T5?
The MIC23156-0YML-T5 requires a minimum 2.2 µF X5R/X7R ceramic capacitor on both PVIN and AVIN pins, placed close to their respective pins with short traces. For output, a 2.2 µF ceramic capacitor is sufficient for stability; increasing to 4.7–15 µF improves transient response depending on inductor value. Avoid Y5V/Z5U types due to capacitance loss over temperature and frequency.
Does MIC23156-0YML-T5 support pre-biased output start-up?
Yes, MIC23156-0YML-T5 supports safe start-up into pre-biased outputs. Its internal architecture prevents reverse current flow during enable, eliminating risk of system instability or damage when powering into an already charged rail - critical for hot-plug SSDs and multi-rail sequenced systems.
What is the function of the VSEL pin on MIC23156-0YML-T5?
The VSEL pin on MIC23156-0YML-T5 selects between two independent I²C-programmable voltage registers: logic low chooses Buck Register 1, logic high chooses Buck Register 2. This enables hardware-triggered voltage switching without I²C bus traffic - useful for rapid mode transitions in processors or RF transceivers.
How does HyperLight Load® mode improve efficiency in MIC23156-0YML-T5?
HyperLight Load® mode in MIC23156-0YML-T5 uses discontinuous conduction with fixed on-time/pulse-frequency modulation below ~200 mA, minimizing switching losses. This achieves >90% efficiency at 10 mA load - far exceeding conventional buck regulators - while retaining fast transient response and low output ripple.
What thermal protection features does MIC23156-0YML-T5 include?
MIC23156-0YML-T5 integrates thermal shutdown with a 160°C trip threshold and 20°C hysteresis. When junction temperature exceeds 160°C, the device disables switching and enters low-quiescent shutdown (0.1 µA). Operation resumes only after die temperature falls below 140°C - preventing thermal runaway without external supervision.
MIC23156-0YML-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 17-VFQFN, 17-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-T5 FAQ
1.How can I place an order for MIC23156-0YML-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23156-0YML-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 MIC23156-0YML-T5 reliable?
The price and inventory of MIC23156-0YML-T5 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-T5 is usually 5 days.
3.What payment methods are accepted for MIC23156-0YML-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23156-0YML-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23156-0YML-T5?
MIC23156-0YML-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23156-0YML-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 MIC23156-0YML-T5?
For technical support, including MIC23156-0YML-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23156-0YML-T5 requirements.
6.How does Aetrix verify that MIC23156-0YML-T5 is sourced from the original manufacturer or authorized distributors?
All MIC23156-0YML-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 MIC23156-0YML-T5 meets industry standards.
7.What is the process for return or replacement of MIC23156-0YML-T5?
All MIC23156-0YML-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC23156-0YML-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 MIC23156-0YML-T5 part is unused and in its original packaging.
Return procedure for MIC23156-0YML-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23156-0YML-T5 Tags
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