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Microchip Technology MIC2253-06YML-TR
- Part No.:
- MIC2253-06YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 12-VFDFN Exposed Pad, 12-MLF®
- Datasheet:
-
MIC2253-06YML-TR.pdf
- Description:
- IC REG BOOST ADJ 3.5A 12MLF
- Quantity:
- Payment:
- Shipping:
Inventory:13,409
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Product details
Overview
MIC2253-06YML-TR from Microchip Technology is a high-power-density, 1 MHz PWM DC/DC boost regulator with 3.5A minimum switch current, 1.245V ±3% feedback voltage, and fixed 6V overvoltage protection (OVP). It operates from 2.5V to 10V input and delivers up to 30V output, targeting space-constrained portable power rails in USB-powered devices and GPS modules.
For engineers reviewing the MIC2253-06YML-TR datasheet, MIC2253-06YML-TR pinout, MIC2253-06YML-TR application, or MIC2253-06YML-TR equivalent, key selection criteria include its 12-pin 3 mm × 3 mm DFN package, externally programmable soft-start, integrated OVP clamping, <1% line regulation, and –40°C to +125°C junction temperature range.
Technical Context
The MIC2253-06YML-TR implements constant-frequency peak current-mode control using an internal 3.5A bipolar power transistor and a 1 MHz oscillator. Its PWM engine integrates slope compensation, a transconductance error amplifier, and current-sense amplification for stable regulation across wide input/output ratios.
It features dedicated pins for OVP (pin 9), soft-start (pin 2), and compensation (pin 12), enabling precise output voltage setting via external FB resistors and adjustable OVP threshold up to 30V using resistor dividers - while maintaining fixed 6V OVP default per the -06 variant designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Current Limit | 3.5A min - supports high-output-power boost designs with compact inductors |
| Feedback Voltage | 1.245V ±3% - sets output voltage accuracy via external resistor divider |
| Input Voltage Range | 2.5V to 10V - enables direct operation from 1–2-cell Li-ion or 3–4-cell alkaline/NiMH batteries |
| Oscillator Frequency | 1 MHz (±20%) - enables small external magnetics and fast transient response |
| Shutdown Current | 0.1 µA - extends battery life in standby mode of portable electronics |
| OVP Threshold | Fixed 6V - protects downstream circuitry during fault conditions without external components |
| Operating Junction Temp | –40°C to +125°C - supports industrial and automotive-adjacent portable applications |
| Line Regulation | <1% - ensures stable output under varying input supply conditions |
Pinout & Package
Package: 12-pin 3 mm × 3 mm × 0.9 mm leadless DFN (ML), exposed thermal pad (EP), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No connect - not internally bonded; must be left floating or grounded per layout best practice |
| 2 | SS | Soft-start input - connects to external capacitor to control inrush current and startup slew rate |
| 3 | FB | Feedback input - senses output voltage via resistor divider; 1.245V reference sets VOUT = 1.245 × (1 + RTOP/RBOT) |
| 4 | AGND | Analog ground - reference for FB, COMP, and internal error amplifier; separate from PGND to minimize noise coupling |
| 5,6 | PGND | Power ground - return path for switch current and high di/dt paths; tied to EP for thermal conduction |
| 7,8 | SW | Switch node - collector of internal bipolar transistor; connects to inductor and external Schottky diode anode |
| 9 | OVP | Overvoltage protection input - monitors output via resistor divider; triggers shutdown if >6V (default for -06 variant) |
| 10 | VIN | Input supply - powers internal circuitry; accepts 2.5V–10V; bypassed with ≥2.2 µF ceramic capacitor |
| 11 | EN | Enable input - logic-high (>1.5V) enables regulation; logic-low (<0.4V) disables with 0.1 µA shutdown current |
| 12 | COMP | Compensation node - connects external RC network to stabilize loop response in current-mode topology |
| EP | HS Pad | Exposed thermal pad - soldered to PCB copper pour for thermal dissipation; must be connected to PGND |
Key Features
| Feature | Design Value |
|---|---|
| Externally programmable soft-start | Capacitor-adjustable startup time (≥1 ms default) prevents inrush current damage to input source and output caps |
| Output overvoltage protection (OVP) | Fixed 6V clamping threshold (per -06 suffix) shuts off switch to protect load and output capacitor during feedback fault |
| High switch current capability | 3.5A minimum switch current enables high output power (e.g., [email protected] or 12V@600mA) from tiny 3×3 mm footprint |
| Ultra-low shutdown current | 0.1 µA shutdown leakage preserves battery charge in always-on portable systems between active cycles |
| Integrated undervoltage lockout (UVLO) | 2.1V typical UVLO threshold prevents erratic startup at low battery voltage, ensuring clean enable/disable behavior |
| Thermal and current protection | Overtemperature shutdown at ~150°C and cycle-by-cycle current limiting prevent damage under overload or poor heatsinking |
Applications
| Mobile Handsets | Portable Navigation Devices (GPS) |
|---|---|
|
Use Scenario: Boosting single-cell Li-ion (3.0–4.2V) to 5V for USB OTG peripherals and camera flash ICs. IC Role / Device Role / Timing Role: Primary DC/DC boost regulator providing regulated 5V rail with fast transient response to handle burst-mode loads. Use Value: 3.5A switch current and 1 MHz switching allow use of 2.2 µH inductor, minimizing board area while sustaining >1.2A continuous output. |
Use Scenario: Generating stable 3.3V or 5V from 3.3V LDO-fed battery rail for GPS baseband and RF front-end ICs. IC Role / Device Role / Timing Role: High-efficiency step-up converter delivering low-noise power to sensitive GNSS receivers and antenna modules. Use Value: <1% line regulation and integrated OVP ensure consistent RF performance and prevent latch-up during battery voltage sag or surge events. |
| WiFi/WiMax Modules | USB-Powered Devices |
|
Use Scenario: Powering 3.3V WLAN SoC and PA from 5V USB input when host supplies only 4.75–5.25V nominal. IC Role / Device Role / Timing Role: Input-voltage-tolerant boost regulator compensating for USB cable drop and maintaining stable 3.3V under dynamic TX load. Use Value: 2.5V–10V input range accommodates degraded USB bus voltage; 1 MHz frequency minimizes EMI impact on 2.4/5 GHz radio bands. |
Use Scenario: Enabling dual-voltage operation (e.g., 3.3V MCU + 5V sensor interface) from single 5V USB port. IC Role / Device Role / Timing Role: Compact, self-contained boost stage eliminating need for discrete FET/diode/inductor solutions. Use Value: 12-pin DFN package and integrated switch reduce BOM count by ≥4 components versus controller-based alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61088RHLR | 4A switch current, 2.7–12V input, adjustable OVP, 2.5V–18V output; uses MOSFET switch instead of bipolar | Higher efficiency at light loads due to MOSFET architecture; requires external OVP configuration for 6V clamp | Preferred where >90% efficiency at 10–100 mA is critical; less suitable for cost-sensitive designs requiring fixed 6V OVP out-of-box |
| MAX17065ETA+ | 2.5A switch current, 2.5–5.5V input, fixed 5.15V OVP, 2.5–28V output; smaller 10-pin 3×3 TDFN | Lower max input voltage limits use with 2-cell Li-ion; lacks programmable soft-start | Valid for space-constrained 1-cell Li-ion apps needing minimal footprint; not recommended for 3–4-cell alkaline/NiMH inputs or soft-start-critical sequencing |
Compared with MIC2253-06YML-TR, TPS61088RHLR offers higher light-load efficiency but requires design effort to replicate fixed 6V OVP, while MAX17065ETA+ saves board area but sacrifices input voltage flexibility and soft-start control - making MIC2253-06YML-TR optimal for robust, production-ready 6V-OVP boost in portable battery systems.
Availability
MIC2253-06YML-TR is available at Aetrix Electronics and suitable for mobile handsets, portable navigation devices, and USB-powered peripherals requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for MIC2253-06YML-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
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, interface, and power management ICs, with global design, manufacturing, and support infrastructure.
The MIC2253 product line delivers high-current, high-frequency boost regulators optimized for portable electronics requiring compact, reliable, and feature-rich DC/DC conversion - specifically targeting battery-powered systems with stringent size and protection requirements.
FAQ
What is the OVP threshold of MIC2253-06YML-TR, and is it adjustable?
The MIC2253-06YML-TR has a fixed 6V overvoltage protection threshold, as indicated by the "-06" suffix in its part number. While the OVP pin (pin 9) supports external resistor dividers to raise the threshold up to 30V, the default and factory-configured OVP point remains 6V. This fixed behavior simplifies design for applications requiring guaranteed clamping at that level without additional components.
Does MIC2253-06YML-TR require an external diode, and what type is recommended?
Yes, MIC2253-06YML-TR requires an external Schottky diode connected between the SW pin and output capacitor. A Schottky diode is mandatory due to its low forward voltage and negligible reverse recovery time - critical for achieving high efficiency and stable operation at 1 MHz. Diode voltage rating must exceed the maximum output voltage, and current rating must handle peak inductor current (≥3.5A).
What is the purpose of the NC pin (pin 1) on MIC2253-06YML-TR, and how should it be handled?
Pin 1 of MIC2253-06YML-TR is designated NC (No Connect) and is not internally bonded. It must not be connected to any signal or power net. Best practice is to leave it unconnected or tie it to PGND solely for mechanical stability - never to VIN, AGND, or any active node - to avoid unintended coupling or reliability risks.
Can MIC2253-06YML-TR operate from a 12V input supply?
No, MIC2253-06YML-TR cannot operate from a 12V input. Its absolute maximum VIN rating is +12V, but its specified operating input voltage range is strictly +2.5V to +10V. Applying 12V exceeds the operational limit and may cause malfunction or permanent damage. For 12V input applications, a pre-regulator or alternative IC with wider input range is required.
How does the soft-start function work on MIC2253-06YML-TR, and what capacitor value achieves ~5 ms startup?
The MIC2253-06YML-TR uses an external capacitor on the SS pin (pin 2) to set soft-start duration. Startup time approximates TSS = 1 ms + (85 kΩ × CSS). To achieve ~5 ms, a 47 nF capacitor yields TSS ≈ 1 ms + (85 kΩ × 47 nF) = ~5.0 ms. This controlled ramp prevents inrush current into output capacitance and avoids brown-out on shared input rails.
MIC2253-06YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 12-VFDFN Exposed Pad, 12-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 10V
- Voltage - Output (Min/Fixed):
- 1.245V
- Voltage - Output (Max):
- 30V
- Current - Output:
- 3.5A (Switch)
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MLF™ (3x3)
MIC2253-06YML-TR FAQ
1.How can I place an order for MIC2253-06YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2253-06YML-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 MIC2253-06YML-TR reliable?
The price and inventory of MIC2253-06YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2253-06YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2253-06YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2253-06YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2253-06YML-TR?
MIC2253-06YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2253-06YML-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 MIC2253-06YML-TR?
For technical support, including MIC2253-06YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2253-06YML-TR requirements.
6.How does Aetrix verify that MIC2253-06YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2253-06YML-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 MIC2253-06YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2253-06YML-TR?
All MIC2253-06YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2253-06YML-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 MIC2253-06YML-TR part is unused and in its original packaging.
Return procedure for MIC2253-06YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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