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Microchip Technology MIC2602YML-TR
- Part No.:
- MIC2602YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2602YML-TR.pdf
- Description:
- IC REG BOOST ADJ 1.2A 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,724
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Product details
Overview
MIC2602YML-TR from Micrel is a 2MHz, 1.2A integrated switch boost regulator with internal bipolar transistor, wide 4.5V–20V input range, adjustable up to 40V output, and 8-pin 2mm × 2mm MLF® package-designed for compact high-efficiency bias supplies in TFT-LCD and broadband communications systems.
For engineers reviewing the MIC2602YML-TR datasheet, MIC2602YML-TR pinout, MIC2602YML-TR application, or MIC2602YML-TR equivalent, key selection criteria include switching frequency (2MHz), 1.2A switch current limit, programmable soft-start via SS pin, 1.25V feedback reference, and output over-voltage protection at 15% above setpoint.
Technical Context
The MIC2602YML-TR implements constant-frequency current-mode PWM control with an internal 1.2A bipolar switch and integrated slope compensation ramp generator. Its 2MHz oscillator enables use of small external inductors (e.g., 10µH) and ceramic capacitors while maintaining stable regulation across 4.5V–20V input.
It features dual ground separation (AGND and PGND), internal 1.25V bandgap reference, and independent UVLO (2.1V typical) and thermal shutdown (150°C). The FB pin senses output voltage with ±2% accuracy over temperature, and the SS pin supports monotonic startup via external capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 2MHz - enables compact 10µH inductor and low-profile ceramic output caps |
| Input Voltage Range | 4.5V to 20V - supports 12V rail, automotive battery, and industrial DC inputs |
| Output Voltage Range | Adjustable up to 40V - set via FB resistor divider with 1.25V reference |
| Switch Current Limit | 1.2A (typical) - defines max load capability and inductor peak-current rating |
| Feedback Reference | 1.25V ±2% - determines output accuracy and stability under line/load transients |
| Shutdown Current | <10µA - ensures ultra-low power-off leakage in battery-backed systems |
| OVP Threshold | 15% above programmed VOUT - protects downstream circuitry during load dump or transient events |
Pinout & Package
Package: 8-pin 2mm × 2mm MLF® (leadless, exposed pad), RoHS-compliant, NiPdAu lead finish, θJA = 90°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | 4.5V–20V supply input; requires local 2.2µF bypass to PGND |
| VDD | Internal Regulator Supply | Powered from VIN; connect directly when VIN ≤ 7V; bypass with 0.1µF |
| EN | Enable Control | Logic-high active; <0.3V disables regulator and reduces IQ to <10µA |
| AGND | Analog Ground | Reference ground for FB, SS, EN, and internal error amplifier; separate from PGND |
| SS | Soft Start | Connect external capacitor to GND for monotonic VOUT ramp; sets startup time |
| FB | Feedback Input | Senses output via resistor divider; 1.25V reference defines VOUT = 1.25V(1 + R1/R2) |
| SW | Switch Node | Internal bipolar collector node; connects to inductor and Schottky diode anode |
| PGND | Power Ground | High-current return path for switch and inductor; must be low-inductance, separate loop |
Key Features
| Feature | Design Value |
|---|---|
| 2MHz Fixed-Frequency PWM | Enables use of 10µH inductors and avoids EMI-sensitive bands below 1.5MHz |
| Integrated 1.2A Bipolar Switch | Eliminates external MOSFET/driver; simplifies layout and reduces BOM count |
| Programmable Soft Start | Prevents inrush current via external SS capacitor; avoids input rail sag or OCP false triggers |
| Dual Ground Architecture | Separate AGND/PGND paths minimize noise coupling into feedback loop |
| Output Over-Voltage Protection | Shuts off SW when VOUT exceeds 15% of setpoint-protects load and diode during transients |
Applications
| TFT-LCD Bias Supply | Broadband Communications |
|---|---|
Use Scenario: Generating +18V and –10V rails for LCD panel gate drivers and source drivers. IC Role / Device Role / Timing Role: Primary positive-output boost regulator delivering 500mA at 18V from 12V input. Use Value: 2MHz operation allows tiny 10µH inductor and 0805/1206 ceramics, reducing board area by >40% vs. 500kHz solutions. | Use Scenario: Providing stable 24V bias for RF front-end amplifiers and optical transceivers in DSL/Cable modems. IC Role / Device Role / Timing Role: Local boost converter powering analog signal chain components with low ripple and fast transient response. Use Value: Internal compensation and 1.25V FB reference ensure ±2% output regulation across –40°C to +125°C ambient. |
| STB Multimedia Power | SEPIC Converter Core |
Use Scenario: Generating 5V/3.3V auxiliary rails from variable 5–12V input in satellite set-top boxes. IC Role / Device Role / Timing Role: High-density boost stage enabling multi-rail generation in space-constrained enclosures. Use Value: 2mm × 2mm MLF® package delivers 1.2A output in 4mm² footprint-ideal for stacked PCB designs. | Use Scenario: Configured as SEPIC to regulate output when input may dip below output (e.g., 5V rail from USB-C PD source). IC Role / Device Role / Timing Role: Switching controller with bipolar output stage adapted for non-inverting buck-boost topology. Use Value: 85% max duty cycle and 40V switch rating support wide VIN/VOUT overlap without external FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP1542DK-LF-Z | 1.3MHz, 1.5A MOSFET switch, 28V max VSW, no OVP | Lacks output over-voltage protection; requires external OVP circuit for safety-critical rails | Choose when higher switch current (1.5A) is needed and OVP is implemented externally |
| TPS61088RHLR | 2.5MHz, 5A switch, 12.6V max VIN, integrated diode | Lower input voltage ceiling (12.6V); not suitable for 20V industrial inputs or 40V outputs | Choose for ultra-compact 5A loads with 5V–12V input; avoid for >12.6V or >30V output designs |
Compared with MP1542DK-LF-Z and TPS61088RHLR, the MIC2602YML-TR uniquely combines 20V input tolerance, 40V output capability, built-in OVP, and 2MHz operation in a 4mm² package-making it optimal for industrial bias supplies where input/output margin and fault protection are critical.
Availability
MIC2602YML-TR is available at Aetrix Electronics and suitable for TFT-LCD bias supplies, broadband communications power, and STB multimedia systems requiring stable component supply across extended temperature and long production lifecycles.
Supply support for MIC2602YML-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 power IC manufacturer acquired by Microchip Technology in 2015; known for high-reliability DC/DC regulators and timing products.
The MIC2601/2 family was designed specifically for space-constrained, high-efficiency boost applications in display bias, telecom, and industrial equipment-emphasizing integration, thermal robustness, and fault protection.
FAQ
What is the maximum output voltage supported by the MIC2602YML-TR?
The MIC2602YML-TR supports output voltages up to 40V, set via the external feedback resistor divider. Its internal switch is rated for 40V breakdown, and output over-voltage protection activates at 15% above the programmed output-ensuring safe operation even during transient conditions. This makes MIC2602YML-TR suitable for high-bias applications like TFT-LCD gate drivers.
Does the MIC2602YML-TR require an external diode, and what type is recommended?
Yes, the MIC2602YML-TR requires an external Schottky diode connected between the SW pin and output capacitor. A 3A, 60V Schottky such as B360A is recommended-its low forward voltage and fast recovery minimize conduction losses and improve efficiency. The diode must withstand peak inductor current and reverse voltage exceeding the output voltage.
How does the soft-start function work on the MIC2602YML-TR, and how is it configured?
The MIC2602YML-TR uses the SS pin for programmable soft-start: connecting a capacitor from SS to AGND sets the output voltage ramp rate. A 0.1µF capacitor yields typical startup in ~1ms. This prevents inrush current, avoids input droop, and eliminates false triggering of upstream current limits-critical in multi-rail systems where MIC2602YML-TR powers sensitive analog stages.
What is the purpose of separate AGND and PGND pins on the MIC2602YML-TR?
The MIC2602YML-TR separates AGND (analog ground) and PGND (power ground) to isolate noise from high-current switching paths from the precision feedback and control circuitry. AGND serves the error amplifier, reference, and EN/SS pins; PGND carries pulsed inductor current. Proper PCB layout-keeping AGND traces short and routing PGND as a low-inductance copper pour-ensures stable regulation and low output ripple in MIC2602YML-TR designs.
Can the MIC2602YML-TR operate with input voltage below 4.5V?
No-the MIC2602YML-TR has a specified minimum input voltage of 4.5V per absolute ratings and operating conditions. Below this, UVLO prevents startup; the internal regulator (VDD) may not sustain bias, and switch current capability degrades. For sub-4.5V inputs, alternative regulators such as the MIC2295 (2.5V–16V) or TPS61022 should be evaluated-not the MIC2602YML-TR.
MIC2602YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-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):
- 4.5V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- 40V (Switch)
- Current - Output:
- 1.2A (Switch)
- Frequency - Switching:
- 1.92MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2602YML-TR FAQ
1.How can I place an order for MIC2602YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2602YML-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 MIC2602YML-TR reliable?
The price and inventory of MIC2602YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2602YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2602YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2602YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2602YML-TR?
MIC2602YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2602YML-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 MIC2602YML-TR?
For technical support, including MIC2602YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2602YML-TR requirements.
6.How does Aetrix verify that MIC2602YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2602YML-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 MIC2602YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2602YML-TR?
All MIC2602YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2602YML-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 MIC2602YML-TR part is unused and in its original packaging.
Return procedure for MIC2602YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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