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Microchip Technology MIC2250-1YD5-TR
- Part No.:
- MIC2250-1YD5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC2250-1YD5-TR.pdf
- Description:
- IC REG BOOST ADJ 2A TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:9,573
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Product details
Overview
MIC2250-1YD5-TR from Micrel is a high-efficiency, low-EMI DC/DC boost regulator optimized for noise-sensitive battery-powered handheld devices. It features 2.5V–5.5V input range, adjustable output up to 32V, 52µA typical quiescent current, <1µA shutdown current, and internal 34V/2A switch - enabling compact local 5V/15V/24V rail generation in mobile phones and OLED display bias supplies.
For engineers reviewing the MIC2250-1YD5-TR datasheet, MIC2250-1YD5-TR pinout, MIC2250-1YD5-TR application, or MIC2250-1YD5-TR equivalent, key selection criteria include dithering-disabled operation, Thin SOT-23 package compatibility, PFM/current-mode hybrid control, EMI-sensitive layout requirements, and ceramic-capacitor stability with 4.7µH–22µH inductors.
Technical Context
The MIC2250-1YD5-TR implements constant peak current control with Pulse Frequency Modulation (PFM) at light loads and transitions to current-mode regulation above ~1W. Its proprietary control method minimizes output voltage ripple across 1mA–40mA load range while maintaining >80% efficiency over 300:1 load variation.
Dithering is disabled per design (DITH pin internally tied low), eliminating frequency spreading but preserving low-noise switching via fixed-frequency PFM and soft-start circuitry. The device integrates UVLO (2.0V typ), thermal shutdown (130°C), and 1.24V feedback reference with ±1.5% tolerance over –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 5.5V - supports single-cell Li-ion (3.0–4.2V) and dual-cell alkaline (2.4–3.2V) without external LDO pre-regulation. |
| Output Voltage Range | Adjustable up to 32V - set via external resistor divider; enables LCD/OLED bias rails and CCD supply generation. |
| Quiescent Current | 52µA typical - ensures >80% efficiency at 1mA load, critical for standby power in portable media players. |
| Shutdown Current | <1µA - reduces system leakage during deep sleep modes in GPS PNDs and PDAs. |
| Switch Rating | 34V drain-source, 2A peak current - allows direct drive of 15V/24V rails with minimal external components. |
| Feedback Reference | 1.24V ±1.5% - enables precise output setting with standard 1% resistors; supports stable regulation under load transients. |
| Operating Junction Temp | –40°C to +125°C - qualified for automotive infotainment displays and industrial handheld terminals. |
Pinout & Package
Package: 5-pin Thin SOT-23 (D5), leadless, Pb-free, RoHS-compliant. Exposed pad not present - unlike MLF variant; requires standard SOT-23 PCB footprint with thermal relief on PGND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | 2.5V–5.5V supply input; must be decoupled with ≥10µF ceramic capacitor placed adjacent to pin. |
| SW | Switch Node | Internal NMOS drain connection; drives inductor; high dv/dt node requiring minimized trace area and ground guard ring. |
| PGND | Power Ground | High-current return path for switch and inductor; must connect directly to input/output capacitor grounds with low-inductance route. |
| EN | Enable Control | Logic-compatible input (1.5V turn-on, 0.4V turn-off); must not float - tie to VIN or microcontroller GPIO with pull-down if unused. |
| FB | Feedback Sense | 1.24V reference input; connects to resistor divider midpoint; high-impedance node (10nA max bias) sensitive to noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Low-EMI Operation (Dither Disabled) | DITH pin internally grounded - eliminates spectral spreading while retaining inherent low-ripple PFM architecture for predictable EMI filtering. |
| Ceramic Capacitor Stability | Stable with 1µF–22µF X5R/X7R ceramics - removes need for electrolytic or tantalum output caps, reducing board area and improving reliability. |
| Hybrid PFM/Current-Mode Control | Automatic mode transition between PFM (light load) and current-mode (heavy load) - maintains >80% efficiency from 1mA to 40mA without external compensation. |
| Integrated Protection | UVLO (2.0V), thermal shutdown (130°C), and current limiting (2A typ) - enables robust operation in thermally constrained handheld enclosures. |
| High Power Density | 34V/2A internal switch in 5-pin SOT-23 - delivers 24V@20mA from 3.6V input in <3mm² footprint, replacing discrete boost solutions. |
Applications
| LCD/OLED Display Bias Supply | CCD Bias Supply |
|---|---|
Use Scenario: Generating 15–24V bias for active-matrix OLED panels in smartphones and wearables. IC Role / Device Role / Timing Role: Primary boost converter providing regulated high-voltage rail; operates in PFM mode during screen idle periods. Use Value: 52µA quiescent current extends battery life during display-on standby; ceramic-capacitor compatibility avoids bulging capacitors in thin form factors. |
Use Scenario: Supplying 24V–32V bias to charge-coupled device image sensors in portable medical endoscopes. IC Role / Device Role / Timing Role: Precision-adjustable high-voltage source with tight line/load regulation (≤2%) for sensor dark-current stability. Use Value: 1.24V feedback reference tolerance ensures consistent bias voltage across temperature, minimizing image noise drift. |
| Mobile Phone Local 5V Rail | Haptic Display Driver Supply |
Use Scenario: Creating isolated 5V rail from 3.6V battery to power USB OTG peripherals or audio codecs. IC Role / Device Role / Timing Role: Secondary boost stage delivering clean, low-noise 5V with fast transient response to burst data transfers. Use Value: Soft-start circuitry prevents in-rush current spikes that could brown-out baseband processors during USB enumeration. |
Use Scenario: Driving piezoelectric haptic actuators requiring 12–20V pulses in smartwatches and AR glasses. IC Role / Device Role / Timing Role: High-efficiency pulse generator with rapid enable/disable control via EN pin for tactile feedback timing. Use Value: <1µA shutdown current eliminates standby drain when haptics are inactive; 2A switch handles short-duration 100mA actuator peaks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVR | Fixed 28V output (non-adjustable); 500kHz fixed-frequency PWM; higher IQ (80µA); no dither control. | Suitable for fixed-output applications only; less flexible for multi-rail systems requiring 15V/24V/32V. | Select when output voltage is fixed and EMI filtering targets narrowband harmonics rather than broadband spread. |
| MAX17062ETA+ | Adjustable output (0.6V–28V); 2.7V–5.5V input; 25µA IQ; integrated Schottky diode; no DITH pin. | Eliminates external diode but limits max output to 28V; lower IQ improves ultra-low-power use cases. | Prefer for space-constrained designs where diode integration outweighs 4V output headroom loss vs. MIC2250-1YD5-TR. |
Compared with TPS61040DRVR and MAX17062ETA+, the MIC2250-1YD5-TR uniquely combines adjustable 32V output, dither-disabled low-EMI operation, and ceramic-capacitor stability in a 5-pin SOT-23 - making it optimal for multi-voltage bias generation in EMI-sensitive portable displays.
Availability
MIC2250-1YD5-TR is available at Aetrix Electronics and suitable for LCD/OLED display bias supply, CCD bias supply, and mobile phone local 5V rail applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC2250-1YD5-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 founded in 1978, acquired by Microchip Technology in 2015. Known for high-performance power management and interface ICs.
The MIC2250 product line was designed specifically for noise-critical, battery-operated portable electronics - emphasizing low quiescent current, EMI reduction, and small-footprint boost conversion without external compensation.
FAQ
What is the function of the DITH pin on the MIC2250-1YD5-TR?
The DITH pin on the MIC2250-1YD5-TR is permanently disabled - it is internally tied low to disable pseudo-random frequency dithering. This distinguishes the MIC2250-1YD5-TR from the MIC2250-2YD5, which enables dithering when DITH is pulled high. No external connection is required or recommended for the MIC2250-1YD5-TR.
Can the MIC2250-1YD5-TR generate 32V output from a 3.6V input?
Yes, the MIC2250-1YD5-TR supports output voltages up to 32V using an external resistor divider on the FB pin. With VIN = 3.6V, achieving 32V requires a duty cycle near 87%, which remains within the device's maximum duty cycle specification. Stable operation requires proper inductor selection (e.g., 10µH, 2A saturation) and low-ESR output capacitor.
What is the minimum inductor value supported by the MIC2250-1YD5-TR?
The MIC2250-1YD5-TR is specified for stable operation with inductors from 4.7µH to 22µH. Using a 4.7µH inductor is valid and commonly applied for higher-frequency switching and compact layouts, provided its saturation current exceeds 2A and DC resistance is minimized to preserve efficiency at 40mA loads.
Does the MIC2250-1YD5-TR require an external diode, and what type is recommended?
Yes, the MIC2250-1YD5-TR requires an external diode. For outputs ≤10V, a Schottky diode (e.g., Vishay SL04) is recommended due to low forward voltage. For outputs >10V (e.g., 24V CCD bias), a high-speed silicon diode like LS4148 is preferred - its lower leakage current improves light-load efficiency by up to 5.7× versus Schottky at 70°C ambient.
How does the MIC2250-1YD5-TR achieve high efficiency at 1mA load?
The MIC2250-1YD5-TR achieves 80% efficiency at 1mA through PFM operation, ultra-low 52µA quiescent current, and zero-crossing detection that minimizes switching losses. Its constant peak current control maintains regulation without forced PWM, allowing natural frequency reduction under light loads - a key advantage over fixed-frequency boost regulators.
MIC2250-1YD5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.24V
- Voltage - Output (Max):
- 32V
- Current - Output:
- 2A (Switch)
- Frequency - Switching:
- Up to 2.5MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MIC2250-1YD5-TR FAQ
1.How can I place an order for MIC2250-1YD5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2250-1YD5-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 MIC2250-1YD5-TR reliable?
The price and inventory of MIC2250-1YD5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2250-1YD5-TR is usually 5 days.
3.What payment methods are accepted for MIC2250-1YD5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2250-1YD5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2250-1YD5-TR?
MIC2250-1YD5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2250-1YD5-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 MIC2250-1YD5-TR?
For technical support, including MIC2250-1YD5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2250-1YD5-TR requirements.
6.How does Aetrix verify that MIC2250-1YD5-TR is sourced from the original manufacturer or authorized distributors?
All MIC2250-1YD5-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 MIC2250-1YD5-TR meets industry standards.
7.What is the process for return or replacement of MIC2250-1YD5-TR?
All MIC2250-1YD5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2250-1YD5-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 MIC2250-1YD5-TR part is unused and in its original packaging.
Return procedure for MIC2250-1YD5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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