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Microchip Technology MIC23163YMT-TR
- Part No.:
- MIC23163YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN Exposed Pad
- Datasheet:
-
MIC23163YMT-TR.pdf
- Description:
- IC REG BUCK ADJ 2A 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,378
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Product details
Overview
MIC23163YMT-TR from Micrel is a 4MHz, 2A synchronous buck regulator with HyperLight Load® mode, 100% duty cycle capability, and Power Good output - designed for space-constrained portable electronics requiring high efficiency across light-to-heavy loads. It delivers up to 93% peak efficiency at 2A, maintains 85% efficiency at 1mA, and operates from 2.7V–5.5V input to generate adjustable output voltages (0.7V–VIN) in a 2.0mm × 2.0mm DFN package.
For engineers reviewing the MIC23163YMT-TR datasheet, MIC23163YMT-TR pinout, MIC23163YMT-TR application, or MIC23163YMT-TR equivalent, key selection criteria include its ultra-low 33µA quiescent current, 4MHz fixed-frequency PWM operation above 120mA load, HLL-mode transient response, 0.7V feedback reference, and thermal/overcurrent protection - all critical for battery-powered modem and GPS power rails.
Technical Context
The MIC23163YMT-TR uses a proprietary HyperLight Load® control architecture combining minimum-on-time pulse-frequency modulation (PFM) at light loads and fixed 4MHz PWM in continuous conduction mode (CCM) above ~120mA. Its internal fully-integrated PMOS/NMOS synchronous switches eliminate external diode losses and enable 100% duty cycle operation for maximum battery utilization.
It features an adjustable output via resistor divider on FB (0.7V reference), programmable soft-start via SS pin (1nF min), open-drain Power Good (PG) with 85–95% VOUT threshold, and separate AGND/PGND paths to isolate analog control and high-current switching loops - essential for stable regulation under fast load transients in mobile SoC core supplies.
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 5V inputs without pre-regulation. |
| Output Current | 2A continuous - sufficient for processor cores, RF transceivers, or multi-rail PMIC subsystems. |
| Switching Frequency | 4MHz (PWM mode) - enables use of tiny 0.47µH inductors and compact 10µF ceramic output capacitors. |
| Quiescent Current | 33µA - minimizes standby power loss in always-on modem or GPS modules. |
| Feedback Reference | 0.7V ±3% - allows precise output programming from 0.7V to VIN using standard resistor values. |
| Duty Cycle Max | 100% - sustains regulation during battery voltage droop (e.g., down to 2.7V input for 1.8V output). |
| Efficiency @ 1mA | 85% typical - ensures long battery life in low-power sleep states of handheld devices. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive infotainment and industrial portable equipment. |
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 Output | Connects to inductor; carries high-frequency pulsed current; requires short, low-inductance routing. |
| 2 EN | Enable Input | Logic-high (>0.8V) enables regulation; logic-low (<0.5V) shuts down IC to 0.1µA; must not float. |
| 3 FB | Feedback Input | Senses output voltage via resistor divider; regulates to 0.7V reference; sets VOUT = 0.7V × (1 + R1/R2). |
| 4 NC | No Connect | Not internally bonded; leave unconnected and unpopulated on PCB. |
| 5 PG | Power Good Open-Drain | Asserts low when VOUT < 85–95% of target; requires external pull-up (≥5kΩ) to VOUT or bias rail. |
| 6 SS | Soft-Start Control | Capacitor to ground (min 1nF) sets ramp time (~600µs with 1nF); prevents output overshoot at startup. |
| 7 AGND | Analog Ground | Reference for FB, PG, SS, and internal control circuitry; tie to central low-noise ground point. |
| 8 AVIN | Analog Input Supply | Bypassed with capacitor to AGND; powers internal analog blocks; separate from PVIN path. |
| 9 PVIN | Power Input Supply | High-current input for MOSFETs; bypass with ≥2.2µF ceramic cap directly to PGND. |
| 10 PGND | Power Ground | Return path for inductor current and switch node; keep loop area minimal and separate from AGND. |
| ePad | Thermal Pad | Must be soldered to PCB ground plane for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load® Mode | Enables PFM operation below ~120mA, achieving 85% efficiency at 1mA and ultra-fast load transient recovery. |
| 100% Duty Cycle Operation | Permits dropout regulation down to VIN = VOUT, extending usable battery range in single-cell systems. |
| Integrated Power MOSFETs | Eliminates external high-side/low-side switches; reduces BOM count and layout complexity. |
| Power Good Indicator | Open-drain PG pin provides system-level power sequencing and fault detection without external comparators. |
| Thermal & Current Protection | Includes overtemperature shutdown (160°C) and cycle-by-cycle current limit (2.5–3.3A) for robust field operation. |
| Ultra-Small Solution Size | Requires only three external components (inductor, input/output caps) and fits in <1mm height profile. |
Applications
| Cellular Modems | Portable GPS Receivers |
|---|---|
|
Use Scenario: Powering LTE/5G baseband processors and RF front-end ICs in compact M.2 or mini-PCIe modem modules. IC Role / Device Role / Timing Role: Primary core voltage regulator delivering dynamically scaled 0.8–1.2V at up to 2A with fast transient response to burst data traffic. Use Value: HyperLight Load® maintains >80% efficiency during idle periods while 4MHz switching minimizes inductor size for tight board real estate. |
Use Scenario: Supplying GNSS baseband ASICs and LNA bias in handheld navigation devices operating from single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Adjustable buck converter generating 1.8V or 3.3V rail with Power Good signaling for safe MCU boot and satellite acquisition sequencing. Use Value: 100% duty cycle extends runtime as battery discharges from 4.2V to 2.7V; 33µA IQ preserves battery charge during cold-start acquisition. |
| Wireless LAN Cards | Digital Cameras |
|
Use Scenario: Regulating Wi-Fi 6/6E transceiver voltage in ultra-thin USB dongles or embedded laptop WLAN modules. IC Role / Device Role / Timing Role: High-efficiency DC/DC supply enabling rapid wake-from-sleep transitions and low-noise RF performance. Use Value: Low output ripple (<10mV p-p typical) and separate AGND/PGND paths prevent RF interference with 2.4/5GHz signal integrity. |
Use Scenario: Powering image sensor interface and ISP processors in action cameras and smartphone auxiliary cameras. IC Role / Device Role / Timing Role: Compact, low-profile power stage supporting burst-mode imaging with millisecond-scale load transients. Use Value: 2.0mm × 2.0mm DFN package and <1mm solution height meet strict mechanical constraints; soft-start prevents flash-trigger timing jitter. |
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, 2.05V–6.5V input, no PG pin, 2.9µA IQ | Limited to lower current; lacks Power Good and 100% duty cycle - unsuitable for 2A modem rails. | Select only for sub-500mA applications where ultra-low IQ dominates over output capability. |
| RT8059ZSP | 3MHz switching, 2A output, 2.5V–5.5V input, 25µA IQ, no HLL mode, fixed 1.2V/1.5V/1.8V/3.3V options | Fixed-output variants only; no adjustable FB; lacks HyperLight Load® efficiency at light loads. | Choose when fixed VOUT suffices and HLL-mode efficiency below 10mA is non-critical. |
Compared with TPS62260DRVR and RT8059ZSP, the MIC23163YMT-TR uniquely combines 2A output, 4MHz operation, adjustable VOUT, Power Good, and HyperLight Load® - making it the only option among the three qualified for high-transient, battery-sensitive 2A core supplies in portable modems and GPS units.
Availability
MIC23163YMT-TR is available at Aetrix Electronics and suitable for cellular modems, portable GPS receivers, and wireless LAN cards requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for MIC23163YMT-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
Micrel Inc. was a U.S.-based analog and mixed-signal semiconductor company specializing in power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015.
The MIC23163YMT-TR belongs to Micrel's HyperLight Load® buck regulator family, engineered specifically for ultra-compact, battery-powered portable electronics demanding high light-load efficiency and fast transient response.
FAQ
What is the minimum output capacitor value required for stable operation of the MIC23163YMT-TR?
The MIC23163YMT-TR is designed for stable operation with a minimum 10µF ceramic output capacitor (X5R or X7R dielectric). Using less than 10µF may cause excessive output ripple, poor load transient response, or instability - especially under heavy load steps. The datasheet confirms stability with 0.47µH inductor and 10µF output capacitor, and recommends Murata GRM188R60J106ME84D as a validated part for the MIC23163YMT-TR.
Does the MIC23163YMT-TR support pre-bias start-up?
Yes, the MIC23163YMT-TR supports pre-bias start-up via its programmable soft-start circuit. When enabled, the device ramps the output voltage from 0V even if the output is initially biased to a non-zero voltage - preventing reverse current flow into the output capacitor. This behavior is explicitly documented in the "Functional Description" section of the MIC23163YMT-TR datasheet and verified in typical application testing.
What is the purpose of the separate AVIN and PVIN pins on the MIC23163YMT-TR?
The MIC23163YMT-TR separates analog and power input paths to minimize noise coupling: AVIN supplies clean voltage to internal analog circuits (error amplifier, reference, PG comparator), while PVIN delivers high-current switching power to the internal MOSFETs. AVIN must be decoupled to AGND; PVIN to PGND. This dual-supply architecture improves regulation accuracy and PG threshold stability - a key design feature confirmed in the MIC23163YMT-TR functional diagram and PCB layout guidelines.
How does the MIC23163YMT-TR transition between HyperLight Load® mode and PWM mode?
The MIC23163YMT-TR automatically transitions from HyperLight Load® (PFM) mode to fixed 4MHz PWM mode at approximately 120mA output current. Below this threshold, it uses variable-frequency PFM with minimum on/off times to maintain efficiency; above it, switching frequency locks near 4MHz. This crossover point depends on input/output voltage, inductance, and load - and is validated in the "Typical Characteristics" plots of the MIC23163YMT-TR datasheet (Figure 4, SW Frequency vs. Output Current).
Is the MIC23163YMT-TR pin-compatible with the MIC23164YMT-TR?
No, the MIC23163YMT-TR is not pin-compatible with the MIC23164YMT-TR. While both share identical pinout and package, the MIC23164YMT-TR integrates an active discharge FET (180Ω pull-down on SW pin when disabled), whereas the MIC23163YMT-TR omits this feature. Pin 1 (SW) function differs: MIC23164YMT-TR pulls SW to ground during shutdown; MIC23163YMT-TR leaves SW floating. This functional difference requires distinct PCB layouts and cannot be substituted without validation.
MIC23163YMT-TR 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-TR FAQ
1.How can I place an order for MIC23163YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23163YMT-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 MIC23163YMT-TR reliable?
The price and inventory of MIC23163YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23163YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23163YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23163YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23163YMT-TR?
MIC23163YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23163YMT-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 MIC23163YMT-TR?
For technical support, including MIC23163YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23163YMT-TR requirements.
6.How does Aetrix verify that MIC23163YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23163YMT-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 MIC23163YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23163YMT-TR?
All MIC23163YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23163YMT-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 MIC23163YMT-TR part is unused and in its original packaging.
Return procedure for MIC23163YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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