My Inquiry
My Account
Microchip Technology MIC23250-M4YMT-TR
- Part No.:
- MIC23250-M4YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN Exposed Pad, 10-TMLF®
- Datasheet:
-
MIC23250-M4YMT-TR.pdf
- Description:
- IC REG BUCK 1.2V/2.8V DL 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC23250-M4YMT-TR from Micrel is a 4MHz dual synchronous buck regulator delivering 400mA per channel with HyperLight Load™ mode, designed for space-constrained portable electronics requiring ultra-low quiescent current (33µA) and high light-load efficiency (85% at 1mA). It integrates two independent 1.2V/1.6V fixed outputs in a 2mm × 2mm Thin MLF® package and operates across 2.7V–5.5V input with ±2.5% output voltage accuracy.
For engineers reviewing the MIC23250-M4YMT-TR datasheet, MIC23250-M4YMT-TR pinout, MIC23250-M4YMT-TR application, or MIC23250-M4YMT-TR equivalent, key selection criteria include dual-output transient response, 4MHz PWM stability under varying load, compatibility with 1µH inductors and 4.7µF ceramic capacitors, and thermal performance across –40°C to +125°C junction temperature.
Technical Context
The MIC23250-M4YMT-TR implements a proprietary HyperLight Load™ control architecture combining minimum-on/off-time pulse-frequency modulation (PFM) at light loads and fixed 4MHz PWM at higher loads. This enables seamless transition between discontinuous conduction mode (DCM) and continuous conduction mode (CCM), maintaining >85% efficiency at 1mA while achieving up to 94% peak efficiency at full load.
Each channel features independent enable inputs (EN1/EN2), dedicated switch nodes (SW1/SW2), and sense inputs (SNS1/SNS2) for precision regulation. The device uses internal PMOS/NMOS synchronous rectification with 0.6Ω/0.8Ω typical ON-resistance, supports 0.01µA shutdown current, and incorporates over-temperature shutdown at 160°C with 40°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, USB 5V, and regulated 3.3V rails without external LDO pre-regulation. |
| Output Current (per channel) | 400mA - sufficient to power dual-core processors, RF transceivers, or memory subsystems in portable devices. |
| Switching Frequency | 4MHz - enables use of compact 1µH inductors and sub-1mm solution height with minimal EMI filtering. |
| Quiescent Current | 33µA (both outputs enabled) - extends battery life in always-on sensor or standby modes. |
| Output Voltage Accuracy | ±2.5% - ensures reliable operation of 1.2V/1.6V core and I/O domains without margining overhead. |
| Thermal Range | –40°C to +125°C junction - qualified for automotive infotainment and industrial handheld environments. |
| Shutdown Current | 0.01µA - eliminates parasitic drain during deep sleep or transport storage. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (Pb-free, NiPdAu lead finish, halogen-free mold compound).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SNS1 | Sense input for output 1 - connects directly to VOUT1 feedback node to close regulation loop with 0.72V reference. |
| 2 | EN1 | Enable input for output 1 - logic-high (>0.8V) activates channel 1; must not be left floating. |
| 3 | AGND | Analog ground - externally tied to PGND but routed separately to minimize noise coupling into control circuitry. |
| 4 | SW1 | Switch node 1 - drives external inductor L1; requires short, low-inductance PCB trace to reduce ringing and EMI. |
| 5 | PGND | Power ground - return path for high-current switching loops; must be connected to solid ground plane under IC. |
| 6 | VIN | Main power input - supplies internal MOSFETs; requires ≥2.2µF ceramic bypass capacitor placed adjacent to pin. |
| 7 | SW2 | Switch node 2 - drives external inductor L2; isolated routing prevents crosstalk between channels. |
| 8 | AVIN | Analog supply input - powers bias and error amplifiers; tied to VIN but decoupled with 0.01µF capacitor for noise rejection. |
| 9 | EN2 | Enable input for output 2 - independent control allows staggered power-up or dynamic channel disabling. |
| 10 | SNS2 | Sense input for output 2 - identical function to SNS1 but for VOUT2 (1.6V); enables independent load monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load™ mode | Enables PFM operation below ~70mA load, reducing quiescent current to 33µA and maintaining >85% efficiency at 1mA. |
| Ultra-low output ripple | 20mVpp in HyperLight Load™ mode and 3mV in full PWM mode - eliminates need for additional LC filtering in noise-sensitive analog sections. |
| Integrated soft-start | 260µs ramp time - prevents inrush current and output overshoot during power-up, eliminating external timing components. |
| Independent channel control | Separate EN1/EN2 and SNS1/SNS2 pins allow asymmetric sequencing, fault isolation, and dynamic power gating per rail. |
| Small solution footprint | 2mm × 2mm package + only six external components (2×L, 3×C, 1×R) achieves dual 400mA regulation in <15mm² board area. |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
Use Scenario: Dual-rail power for application processor (1.2V core) and GPS baseband IC (1.6V I/O). IC Role / Device Role / Timing Role: Primary DC-DC converter supplying regulated core and interface voltages with fast transient response to burst-mode processing. Use Value: 4MHz switching enables compact 1µH inductors and 4.7µF output caps, reducing total solution height to sub-1mm for slim form factors. |
Use Scenario: Powering GPS receiver and inertial measurement unit (IMU) in handheld navigation units. IC Role / Device Role / Timing Role: Dual-output buck regulator delivering stable 1.2V and 1.6V rails with low-noise operation critical for RF signal integrity. Use Value: 3mV output ripple in PWM mode minimizes phase noise in GPS L1-band receivers, improving position accuracy. |
| WiFi/WiMax Modules | Digital Cameras |
Use Scenario: Supplying WLAN SoC (1.2V core) and RF front-end (1.6V PA bias) in compact wireless modules. IC Role / Device Role / Timing Role: High-efficiency dual regulator supporting bursty transmit/receive cycles with rapid load transitions. Use Value: Ultra-fast transient response from HyperLight Load™ mode prevents brownout during WiFi packet transmission peaks. |
Use Scenario: Powering image sensor (1.2V analog) and ISP processor (1.6V digital) in compact digital cameras. IC Role / Device Role / Timing Role: Dual-channel regulator enabling independent power sequencing and low-noise analog supply. Use Value: Independent SNS1/SNS2 feedback paths ensure tight regulation tolerance (±2.5%) on both rails, preserving image SNR. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62400DRVR | 2.25MHz switching, 600mA per channel, 2.5V–6V input, no HyperLight Load™ mode. | Higher current capability but lower light-load efficiency (65% at 1mA) and larger 3mm × 3mm QFN package. | Choose when higher output current or wider input range is required, accepting trade-offs in size and light-load performance. |
| RT8070ZSP | 3MHz switching, 600mA per channel, 2.5V–5.5V input, integrated compensation, no PFM mode. | Larger 4mm × 4mm WQFN package, fixed 1.2V/1.8V outputs, lacks independent enable/sense per channel. | Choose for simplified layout with integrated compensation, but only if dual independent control and ultra-low IQ are not required. |
Compared with TPS62400DRVR and RT8070ZSP, the MIC23250-M4YMT-TR delivers superior light-load efficiency and smallest footprint due to its 4MHz operation and HyperLight Load™ architecture, making it optimal for battery-critical portable designs where board space and standby power are constrained.
Availability
MIC23250-M4YMT-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and WiFi modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC23250-M4YMT-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., now part of Microchip Technology, specialized in high-performance analog and power management ICs for portable, industrial, and communications markets before its 2015 acquisition.
The MIC23250 product line was engineered specifically for ultra-compact, battery-powered consumer electronics demanding dual-rail efficiency, minimal solution size, and robust transient performance across wide temperature ranges.
FAQ
What is the nominal output voltage configuration of the MIC23250-M4YMT-TR?
The MIC23250-M4YMT-TR is a fixed-output variant delivering 1.2V on channel 1 and 1.6V on channel 2, as indicated by the "WV4" marking code in Micrel's ordering table. These voltages are factory-trimmed and require no external feedback resistors, simplifying design and reducing BOM count.
Does the MIC23250-M4YMT-TR support independent enable and disable of each output channel?
Yes, the MIC23250-M4YMT-TR provides fully independent control via dedicated EN1 and EN2 pins. Each pin accepts logic-level signals (0.5V–1.2V threshold) to activate or shut down its respective output, enabling flexible power sequencing, dynamic power gating, and fault containment without affecting the other channel.
What inductor and capacitor values are recommended for optimal performance with the MIC23250-M4YMT-TR?
Micrel specifies a 1µH shielded inductor (e.g., Murata LQM21PN1R0MC0D) and 4.7µF X5R/X7R ceramic capacitors (e.g., TDK C1608X5R0J475K) for both outputs. This combination achieves sub-1mm height, 4MHz stability, <3mV ripple in PWM mode, and >94% peak efficiency while meeting EMI and thermal requirements.
How does HyperLight Load™ mode improve efficiency at light loads in the MIC23250-M4YMT-TR?
HyperLight Load™ mode switches the MIC23250-M4YMT-TR to pulse-frequency modulation (PFM) below ~70mA, reducing switching frequency dynamically and minimizing gate drive and transition losses. This achieves 85% efficiency at 1mA and 33µA quiescent current-critical for standby and sensor-monitoring functions.
Is the MIC23250-M4YMT-TR compatible with standard PCB assembly processes including reflow soldering?
Yes, the MIC23250-M4YMT-TR uses a Pb-free, halogen-free 10-pin Thin MLF® package rated for standard JEDEC J-STD-020 reflow profiles. Its NiPdAu lead finish ensures reliable solderability, and the 0.5mm pitch allows compatibility with fine-pitch stencil printing and automated optical inspection.
MIC23250-M4YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 10-UFDFN Exposed Pad, 10-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 2.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 400mA
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TMLF® (2x2)
MIC23250-M4YMT-TR FAQ
1.How can I place an order for MIC23250-M4YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23250-M4YMT-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 MIC23250-M4YMT-TR reliable?
The price and inventory of MIC23250-M4YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23250-M4YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23250-M4YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23250-M4YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23250-M4YMT-TR?
MIC23250-M4YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23250-M4YMT-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 MIC23250-M4YMT-TR?
For technical support, including MIC23250-M4YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23250-M4YMT-TR requirements.
6.How does Aetrix verify that MIC23250-M4YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23250-M4YMT-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 MIC23250-M4YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23250-M4YMT-TR?
All MIC23250-M4YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23250-M4YMT-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 MIC23250-M4YMT-TR part is unused and in its original packaging.
Return procedure for MIC23250-M4YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23250-M4YMT-TR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
