My Inquiry
My Account
Microchip Technology MIC23250-SKYMT-TR
- Part No.:
- MIC23250-SKYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-UFDFN, 10-TMLF®
- Datasheet:
-
MIC23250-SKYMT-TR.pdf
- Description:
- IC REG BUCK 2.6V/3.3V DL 10TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:993
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC23250-SKYMT-TR from Micrel is a 4MHz dual-channel synchronous buck regulator delivering 400mA per output with HyperLight Load™ mode, designed for space-constrained portable electronics requiring stable 2.6V and 3.3V core/IO supplies. It achieves 94% peak efficiency, 85% efficiency at 1mA load, and ultra-low 33µA quiescent current with both outputs enabled.
For engineers reviewing the MIC23250-SKYMT-TR datasheet, MIC23250-SKYMT-TR pinout, MIC23250-SKYMT-TR application, or MIC23250-SKYMT-TR equivalent, this fixed-output dual buck regulator supports rapid transient response, sub-1mm solution height using 1µH inductors and 4.7µF ceramic capacitors, and operates across –40°C to +125°C junction temperature.
Technical Context
The MIC23250-SKYMT-TR integrates two independent PWM buck controllers with proprietary HyperLight Load™ architecture-switching between pulse-frequency modulation (PFM) at light loads and fixed 4MHz PWM at higher loads. Each channel features dedicated enable (EN1/EN2), switch node (SW1/SW2), and sense (SNS1/SNS2) pins, with shared power (VIN, PGND) and analog (AVIN, AGND) supply domains.
It uses internal PMOS/NMOS synchronous rectification, supports 2.7V–5.5V input, delivers fixed 2.6V/3.3V outputs with ±2.5% accuracy, and incorporates soft-start (260µs), over-temperature shutdown (160°C), and UVLO (2.55V typ) with 60mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and regulated 3.3V rails without external LDO pre-regulation. |
| Output Voltages | 2.6V and 3.3V (fixed) - directly powers ARM Cortex-A/M cores (2.6V) and I/O peripherals (3.3V) in portable SoC designs. |
| Max Output Current | 400mA per channel - sufficient for low-power application processors, GPS baseband ICs, or dual-rail sensor hubs. |
| Switching Frequency | 4MHz (PWM mode) - enables use of compact 1µH inductors and 4.7µF ceramic capacitors for sub-1mm profile solutions. |
| Quiescent Current | 33µA (both outputs enabled) - extends battery life in always-on standby modes of handheld devices. |
| Efficiency @ 1mA | 85% - maintains high light-load efficiency critical for intermittent wake-up operations in wearables and IoT sensors. |
| Output Ripple | 20mVpp (HyperLight Load™), 3mV (PWM) - reduces need for post-regulation filtering in noise-sensitive RF/analog sections. |
Pinout & Package
Package: 10-pin 2mm × 2mm Thin MLF® (Pb-free, NiPdAu lead finish), thermal resistance θJA = 70°C/W, RoHS-compliant and halogen-free.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SNS1 | Sense input for VOUT1 feedback - connects to output capacitor to close regulation loop for 2.6V rail; requires low-inductance layout. |
| 2 | EN1 | Enable control for 2.6V output - logic-high (>0.8V) activates channel; must not float; supports independent power sequencing. |
| 3 | AGND | Analog ground reference - separate low-noise return path for error amplifiers and bias circuitry; must be tied externally to PGND at single point. |
| 4 | SW1 | Switch node for 2.6V channel - high dv/dt node connecting to inductor; routing must avoid sensitive analog traces and minimize loop area. |
| 5 | PGND | Power ground return - carries high pulsed currents from both MOSFETs; requires solid copper pour and short, wide traces to VIN bypass cap. |
| 6 | VIN | Main power input (2.7–5.5V) - supplies internal power MOSFETs; requires ≥2.2µF ceramic bypass capacitor placed adjacent to pin. |
| 7 | SW2 | Switch node for 3.3V channel - independent high-side switching node; shares PGND but must be routed separately from SW1. |
| 8 | AVIN | Analog supply input - powers control circuitry; must be tied to VIN but decoupled with 0.01µF capacitor to suppress switching noise coupling. |
| 9 | EN2 | Enable control for 3.3V output - independent logic-level control allows staggered startup or dynamic rail disable during low-power states. |
| 10 | SNS2 | Sense input for VOUT2 feedback - closes regulation loop for 3.3V rail; layout symmetry with SNS1 improves cross-regulation performance. |
Key Features
| Feature | Design Value |
|---|---|
| HyperLight Load™ mode | Enables PFM operation below ~70mA (1µH inductor), sustaining >85% efficiency at 1mA while minimizing idle power draw. |
| Dual independent enables | EN1 and EN2 allow sequenced power-up/down of 2.6V and 3.3V rails - essential for meeting SoC boot timing requirements and reducing inrush. |
| Ultra-low output ripple | 3mVpp in PWM mode eliminates need for additional LC filtering in RF modules or ADC reference supplies. |
| Integrated soft-start | 260µs controlled ramp prevents output overshoot and limits inrush current into 4.7µF output capacitors during startup. |
| Thermal protection | Over-temperature shutdown at 160°C with 40°C hysteresis prevents damage during sustained 400mA operation in confined enclosures. |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
|
Use Scenario: Powering application processor core (2.6V) and memory/I/O interface (3.3V) in slim smartphone designs. IC Role / Device Role: Dual-output DC-DC converter providing tightly regulated, low-noise rails with minimal board footprint. Use Value: Enables sub-1mm solution height using 1µH inductors and 4.7µF ceramics - critical for thin form factors without sacrificing efficiency. |
Use Scenario: Supplying GPS baseband IC (2.6V) and RF front-end (3.3V) in handheld navigation units with intermittent duty cycles. IC Role / Device Role: High-efficiency dual buck regulator supporting rapid on/off cycling and low-quiescent-current standby. Use Value: 33µA quiescent current and HyperLight Load™ extend battery runtime during GPS acquisition pauses and tracking intervals. |
| WiFi/WiMax Modules | Digital Cameras |
|
Use Scenario: Delivering clean 2.6V core and 3.3V I/O rails to IEEE 802.11n/ac transceivers operating in burst-mode transmission. IC Role / Device Role: Dual synchronous buck regulator with fast transient response to handle 0–400mA load steps during packet transmission. Use Value: Ultra-fast transient response and <3mV ripple prevent RF desensitization and maintain EVM compliance under dynamic loading. |
Use Scenario: Powering image signal processor (2.6V) and CCD/CMOS sensor interface (3.3V) in compact digital cameras with flash LED drivers. IC Role / Device Role: Compact dual buck regulator supporting high peak currents during image capture and low-idle consumption between shots. Use Value: 400mA per channel handles flash LED driver surges; 85% efficiency at 1mA preserves battery life during viewfinder operation. |
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 frequency; 600mA per channel; 2.5V–6V input; adjustable outputs only. | Requires external feedback resistors; larger 3mm × 3mm QFN package; lacks HyperLight Load™-grade light-load efficiency. | Select when higher current or wider input range is needed; not drop-in due to different pinout and fixed vs. adjustable topology. |
| RT8070ZSP | 3MHz switching; 600mA per channel; 2.5V–5.5V input; fixed 1.2V/1.8V or 1.2V/3.3V options only. | No 2.6V/3.3V variant; different enable threshold (1.25V min); higher 55µA quiescent current with both outputs active. | Consider for cost-sensitive designs where 2.6V rail is not required; verify sequencing compatibility before substitution. |
Compared with TPS62400DRVR and RT8070ZSP, the MIC23250-SKYMT-TR offers superior light-load efficiency (85% at 1mA vs. ≤75%), smaller 2mm × 2mm footprint, and native 2.6V/3.3V fixed outputs-reducing BOM count and layout complexity in portable SoC power delivery.
Availability
MIC23250-SKYMT-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and WiFi modules requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MIC23250-SKYMT-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, power management, and timing solutions for portable and industrial markets before its 2015 acquisition.
The MIC23250 product line was engineered specifically for ultra-compact, high-efficiency dual-rail power delivery in battery-powered consumer electronics-emphasizing low quiescent current, fast transient response, and minimal external component count.
FAQ
What input voltage range does the MIC23250-SKYMT-TR support?
The MIC23250-SKYMT-TR supports an input voltage range of 2.7V to 5.5V, making it compatible with single-cell Li-ion batteries (2.7–4.2V), USB 5V sources, and regulated 3.3V intermediate rails. Absolute maximum rating is 6V, and under-voltage lockout engages at 2.55V typical with 60mV hysteresis to prevent erratic operation during brownout conditions.
What are the fixed output voltages of the MIC23250-SKYMT-TR?
The MIC23250-SKYMT-TR provides fixed output voltages of 2.6V on Channel 1 and 3.3V on Channel 2, each rated for up to 400mA continuous output current. Output voltage accuracy is ±2.5% over temperature and line/load variations, verified across –40°C to +125°C junction temperature.
How does HyperLight Load™ mode improve efficiency in the MIC23250-SKYMT-TR?
HyperLight Load™ mode enables pulse-frequency modulation (PFM) operation at light loads, reducing switching losses by activating the regulator only when needed. The MIC23250-SKYMT-TR achieves 85% efficiency at 1mA load-significantly higher than conventional PWM-only regulators-and maintains ultra-low 33µA quiescent current with both outputs enabled.
What package type and dimensions does the MIC23250-SKYMT-TR use?
The MIC23250-SKYMT-TR uses a 10-pin 2mm × 2mm Thin MLF® package with exposed thermal pad, Pb-free NiPdAu lead finish, and halogen-free mold compound. Its compact footprint and 0.5mm pitch support high-density PCB layouts, while the thermal resistance θJA of 70°C/W enables reliable operation at full load in thermally constrained environments.
Can the MIC23250-SKYMT-TR be used with standard 0603-size passive components?
Yes-the MIC23250-SKYMT-TR is optimized for use with industry-standard 0603-size 4.7µF X5R ceramic capacitors (e.g., TDK C1608X5R0J475K) and 1µH shielded inductors (e.g., Murata LQM21PN1R0MC0D). This enables complete dual-rail solutions occupying less than 25mm² total board area, including all passives.
MIC23250-SKYMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 10-UFDFN, 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):
- 2.6V, 3.3V
- 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-SKYMT-TR FAQ
1.How can I place an order for MIC23250-SKYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23250-SKYMT-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-SKYMT-TR reliable?
The price and inventory of MIC23250-SKYMT-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-SKYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC23250-SKYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23250-SKYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23250-SKYMT-TR?
MIC23250-SKYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23250-SKYMT-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-SKYMT-TR?
For technical support, including MIC23250-SKYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23250-SKYMT-TR requirements.
6.How does Aetrix verify that MIC23250-SKYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23250-SKYMT-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-SKYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC23250-SKYMT-TR?
All MIC23250-SKYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23250-SKYMT-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-SKYMT-TR part is unused and in its original packaging.
Return procedure for MIC23250-SKYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23250-SKYMT-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…
