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Microchip Technology MIC23163YMT-T5
- Part No.:
- MIC23163YMT-T5
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
MIC23163YMT-T5.pdf
- Description:
- IC REG BUCK ADJ 2A 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:350
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Product details
Overview
MIC23163YMT-T5 from Micrel (now Microchip Technology) is a high-efficiency, 4MHz synchronous buck regulator delivering up to 2A output current with 100% duty cycle capability, HyperLight Load® mode, and Power Good indicator - designed for space-constrained portable power rails such as cellular modem core supplies and GPS module VDD.
For engineers reviewing the MIC23163YMT-T5 datasheet, MIC23163YMT-T5 pinout, MIC23163YMT-T5 application, or MIC23163YMT-T5 equivalent, this page delivers verified technical context, validated pin functions, confirmed efficiency curves at light and heavy loads, real-world soft-start timing constraints, and precise thermal and protection behavior per Revision 2.0 datasheet.
Technical Context
The MIC23163YMT-T5 implements a proprietary HyperLight Load® (HLL) control architecture that switches between discontinuous conduction mode (DCM) with pulse-frequency modulation (PFM) below ~120mA and continuous conduction mode (CCM) with fixed ~4MHz PWM above that threshold. This enables ultra-fast transient response and maintains 85% efficiency at 1mA while reaching 93% peak efficiency at higher loads.
It integrates fully synchronous PMOS/NMOS power switches, supports adjustable output voltage via external resistor divider (0.7V reference), and includes dedicated analog and power ground paths (AGND/PGND), programmable soft-start (SS pin), open-drain Power Good (PG), and undervoltage lockout with 75mV hysteresis - all in a thermally enhanced 10-pin 2.0mm × 2.0mm DFN package rated from –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion (3.0–4.2V) and USB-powered systems without pre-regulation. |
| Output Current | 2A continuous - sufficient for processor cores, RF transceivers, and baseband ICs in mobile handsets. |
| Switching Frequency | ~4MHz in CCM - enables use of tiny 0.47µH inductors and minimizes EMI filtering requirements. |
| Quiescent Current | 33µA typical - ensures >100-hour standby in battery-powered GPS modules with 10µF output capacitor. |
| Efficiency @ 1mA | 85% typical - critical for always-on subsystems like cellular modems in sleep mode. |
| Feedback Reference | 0.70V ±2.5% - sets output voltage accuracy and enables stable regulation down to 0.7V with external resistors. |
| Duty Cycle Max | 100% - allows dropout operation to extend battery runtime when input falls near output voltage. |
| Shutdown Current | 0.1µA - reduces leakage during system suspend states in portable media players. |
Pinout & Package
Package: 10-pin, 2.0mm × 2.0mm Thin DFN (MT) with exposed thermal pad (ePad), RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SW | Switch Node | High-speed power switch output connected to inductor; requires tight layout to minimize ringing and EMI. |
| 2 EN | Enable Input | Logic-controlled shutdown; turn-on threshold 0.5–1.2V; must not be left floating. |
| 3 FB | Feedback Input | Connects to resistor divider; regulates output by comparing against internal 0.7V reference. |
| 4 NC | No Connect | Not internally bonded - leave unconnected and unpopulated on PCB. |
| 5 PG | Power Good Output | Open-drain signal asserting when VOUT ≥ 85–95% of target; requires external pull-up to VOUT or bias rail. |
| 6 SS | Soft-Start Control | Capacitor-to-ground sets ramp time (e.g., 1nF → ~600µs); minimum 100pF required. |
| 7 AGND | Analog Ground | Reference return for feedback, PG, and control circuitry; separate low-noise path from PGND. |
| 8 AVIN | Analog Input Supply | Bypassed with capacitor to AGND; powers internal bias and error amplifier. |
| 9 PVIN | Power Input Supply | Main input for high-current MOSFET drivers; bypassed with ≥2.2µF ceramic cap to PGND. |
| 10 PGND | Power Ground | High-current return for PVIN, SW, and output capacitor; must be low-inductance and isolated from AGND. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Enables PFM operation below ~120mA load, maintaining >85% efficiency at 1mA and enabling ultra-low IQ without compromising transient response. |
| 100% Duty Cycle Operation | Permits regulation down to VIN − VDS(on), extending usable battery life in single-cell Li-ion applications where input drops to 2.7V. |
| Integrated Synchronous MOSFETs | Eliminates external diode; reduces conduction losses and improves efficiency across full load range, especially at light loads. |
| Programmable Soft-Start | External capacitor on SS pin controls output ramp rate (e.g., 1nF = ~600µs), preventing inrush current and overshoot during power-up. |
| Power Good Indicator | Open-drain PG pin asserts after VOUT stabilizes within ±10% of target, enabling safe sequencing with downstream processors or FPGAs. |
| Thermal & Overcurrent Protection | Includes internal thermal shutdown (160°C) with 20°C hysteresis and current limit (2.5–3.3A) to prevent damage under fault conditions. |
Applications
| Cellular Modem Power | Mobile Handset Core Rail |
|---|---|
|
Use Scenario: Supplies core voltage (e.g., 1.2V or 1.8V) to LTE/WCDMA baseband processors during active data transmission and deep-sleep modes. IC Role / Device Role / Timing Role: Primary synchronous buck regulator managing dynamic load steps from 10µA to 2A with sub-10µs transient recovery. Use Value: HyperLight Load® sustains 85% efficiency at 1mA idle current, extending standby time; 4MHz switching enables compact 0.47µH/10µF solution. |
Use Scenario: Powers application processor cores in smartphones requiring fast voltage scaling and tight output regulation during burst-mode operation. IC Role / Device Role / Timing Role: Adjustable-output DC/DC converter with programmable soft-start and Power Good signaling for safe SoC boot sequence. Use Value: 100% duty cycle extends battery life during brownout; 0.7V feedback reference enables accurate low-voltage regulation (e.g., 0.8V–3.3V). |
| Portable GPS Module | Wi-Fi/WiMAX Radio Supply |
|
Use Scenario: Delivers stable 3.3V rail to GNSS receivers in handheld navigation devices operating from 3.6V Li-ion batteries. IC Role / Device Role / Timing Role: High-efficiency step-down regulator with ultra-low quiescent current (33µA) and thermal protection for sealed enclosures. Use Value: 2.0mm × 2.0mm DFN footprint saves board area; low output ripple (<10mVpp) prevents RF desensitization in sensitive GNSS front-ends. |
Use Scenario: Provides clean 1.8V or 2.5V supply to Wi-Fi transceiver ICs in portable hotspots and wireless LAN cards. IC Role / Device Role / Timing Role: Synchronous buck with fast load transient response and integrated MOSFETs to handle RF transmit current spikes up to 1.5A. Use Value: 4MHz switching frequency avoids interference with 2.4GHz/5GHz bands; PG signal synchronizes radio enable/disable with power rail stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62260DRVR | 2.25MHz switching, 300mA max output, 17µA IQ, no Power Good, 6-pin WSON. | Limited to lower current apps (e.g., sensors, BLE radios); lacks PG and 2A capability. | Select only for ultra-low-power sub-300mA rails where size and IQ outweigh need for PG or high current. |
| RT8059GJ6 | 3MHz, 2A, 25µA IQ, no HyperLight Load®, fixed 1.2V/1.5V/1.8V/2.5V/3.3V options, no adjustable FB. | Requires redesign for non-standard voltages; lacks light-load efficiency optimization and flexible sequencing. | Choose only if fixed output voltage suffices and HyperLight Load® is not needed for battery life. |
Compared with TPS62260DRVR and RT8059GJ6, the MIC23163YMT-T5 uniquely combines 2A capability, 4MHz operation, HyperLight Load® efficiency down to 1mA, adjustable output, and Power Good in a 2mm × 2mm DFN - making it optimal for high-performance portable core rails where dynamic load handling and battery longevity are critical.
Availability
MIC23163YMT-T5 is available at Aetrix Electronics and suitable for cellular modems, portable GPS modules, and Wi-Fi radio supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MIC23163YMT-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
Micrel Inc., acquired by Microchip Technology in 2015, specialized in high-performance analog and power management ICs for portable and communications markets.
The MIC23163YMT-T5 belongs to Micrel's HyperLight Load® buck regulator family, engineered specifically for battery-powered mobile devices demanding ultra-high light-load efficiency, minimal solution size, and robust transient response in space-constrained layouts.
FAQ
What is the maximum output current supported by the MIC23163YMT-T5?
The MIC23163YMT-T5 supports up to 2A continuous output current under thermal limits. Its current limit is specified at 2.5A (min) to 3.3A (max), allowing reliable operation at full 2A with proper PCB copper and airflow. Derating applies above +85°C ambient; thermal shutdown activates at 160°C junction temperature with 20°C hysteresis.
Does the MIC23163YMT-T5 support adjustable output voltage?
Yes, the MIC23163YMT-T5 supports fully adjustable output voltage from 0.7V to VIN using an external resistor divider on the FB pin. The internal reference is 0.70V ±2.5%, and Equation 1 in the datasheet (VOUT = VREF × (1 + R1/R2)) defines the relationship. Example values for 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 3.6V are provided in Table 1.
What is the purpose of the SS (Soft-Start) pin on the MIC23163YMT-T5?
The SS pin on the MIC23163YMT-T5 controls output voltage ramp rate via an external capacitor to ground. With CSS = 1nF, rise time is ~600µs; minimum CSS is 100pF. This prevents inrush current and output overshoot during startup, protecting downstream loads and ensuring clean power sequencing - especially critical for SoCs and FPGAs.
How does HyperLight Load® mode improve efficiency in the MIC23163YMT-T5?
HyperLight Load® mode enables pulse-frequency modulation (PFM) at light loads (<120mA), reducing switching losses by turning the regulator on only when needed. This achieves 85% efficiency at 1mA and maintains ultra-low 33µA quiescent current - significantly outperforming standard PWM regulators in standby and sleep modes common in portable electronics.
Is the MIC23163YMT-T5 pin-compatible with the MIC23164YMT-T5?
No, the MIC23163YMT-T5 is not pin-compatible with the MIC23164YMT-T5. While both share identical pinout and package, the MIC23164YMT-T5 includes an internal 180Ω discharge FET on the SW pin during shutdown, whereas the MIC23163YMT-T5 does not. This functional difference affects output discharge behavior but does not alter pin assignments or electrical interface.
MIC23163YMT-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 10-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 0.7V
- Voltage - Output (Max):
- 5.5V
- 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:
- 10-TDFN (2x2)
MIC23163YMT-T5 FAQ
1.How can I place an order for MIC23163YMT-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23163YMT-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 MIC23163YMT-T5 reliable?
The price and inventory of MIC23163YMT-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23163YMT-T5 is usually 5 days.
3.What payment methods are accepted for MIC23163YMT-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23163YMT-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23163YMT-T5?
MIC23163YMT-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23163YMT-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 MIC23163YMT-T5?
For technical support, including MIC23163YMT-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23163YMT-T5 requirements.
6.How does Aetrix verify that MIC23163YMT-T5 is sourced from the original manufacturer or authorized distributors?
All MIC23163YMT-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 MIC23163YMT-T5 meets industry standards.
7.What is the process for return or replacement of MIC23163YMT-T5?
All MIC23163YMT-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC23163YMT-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 MIC23163YMT-T5 part is unused and in its original packaging.
Return procedure for MIC23163YMT-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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