My Inquiry
My Account
Microchip Technology MIC2601YML-TR
- Part No.:
- MIC2601YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC2601YML-TR.pdf
- Description:
- IC REG BOOST ADJ 1.2A 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:22,572
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC2601YML-TR from Micrel is a 1.2A, 1.2MHz integrated switch boost regulator with internal bipolar transistor, wide 4.5V–20V input range, adjustable up to 40V output, and output over-voltage protection-designed for compact bias supplies in TFT-LCD and broadband communications systems.
For engineers reviewing the MIC2601YML-TR datasheet, MIC2601YML-TR pinout, MIC2601YML-TR application, or MIC2601YML-TR equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, and confirmed alternative options for local boost and SEPIC converter designs.
Technical Context
The MIC2601YML-TR implements constant-frequency current-mode PWM control at 1.2MHz using an internal 40V/1.2A bipolar switch and slope-compensated current amplifier. Its gm error amplifier compares FB voltage against a 1.25V reference to generate the voltage-loop signal.
Internal compensation enables stable operation with ceramic output capacitors, while programmable soft-start via external capacitor (SS pin) controls monotonic output rise. The device integrates UVLO (2.1V typical), thermal shutdown (150°C), and 15% output over-voltage protection triggered by feedback overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Current Limit | 1.2A typical - supports ≥500mA continuous output at 18V with 12V input in typical applications. |
| Switching Frequency | 1.2MHz ±18% - enables use of small 10µH inductors and low-profile 2.2µF input/10µF output ceramic capacitors. |
| Input Voltage Range | 4.5V to 20V - accommodates 5V, 12V, and 19V rails without external pre-regulation. |
| Feedback Reference | 1.25V ±2% - sets output voltage via resistor divider (VOUT = 1.25V × (1 + R1/R2)) with <0.1% load regulation. |
| Shutdown Current | <2µA - allows ultra-low-power system sleep modes without auxiliary LDOs. |
| Max Duty Cycle | 85% - limits minimum input voltage for 18V output to ~3.5V (VIN ≥ VOUT / (1 − DMAX)). |
| Junction Temp Range | −40°C to +125°C - qualified for industrial and automotive under-hood ambient conditions. |
Pinout & Package
Package: 8-pin 2mm × 2mm MLF® (MicroLeadFrame) with exposed thermal pad (EP), Pb-free NiPdAu finish, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | 4.5V–20V supply input; requires 2.2µF ceramic bypass to PGND close to pin. |
| VDD | Internal regulator output | Internally regulated ~6V supply for control circuitry; connect to VIN when VIN ≤ 7V. |
| EN | Enable logic input | Active-high enable (1.5V threshold); pulls shutdown current <2µA when low. |
| AGND | Analog ground reference | Reference for FB, SS, and internal bandgap; must be routed separately from PGND. |
| SS | Soft-start timing node | Connect external capacitor to GND to set monotonic output ramp time (e.g., 0.1µF ≈ 1ms). |
| FB | Feedback sense input | 1.25V reference comparator input; connects to resistor divider from VOUT for output regulation. |
| SW | Switch node | Collector of internal 1.2A bipolar transistor; connects directly to inductor and Schottky diode anode. |
| PGND | Power ground return | High-current return path for switch; must be low-inductance and separate from AGND loop. |
Key Features
| Feature | Design Value |
|---|---|
| Internal 40V/1.2A bipolar switch | Eliminates external MOSFET and gate driver, reducing BOM count and layout area in 2mm × 2mm footprint. |
| Programmable soft start | Prevents inrush current into output capacitors during power-up, avoiding input rail droop or system reset. |
| Output over-voltage protection | Shuts off SW when output exceeds programmed value by 15%, protecting downstream 20V-rated components. |
| Stable with ceramic capacitors | Enables full ceramic solution (no electrolytics), improving reliability, temperature stability, and ESR-related efficiency loss. |
| 1.2MHz fixed-frequency PWM | Reduces EMI fundamental frequency and simplifies filtering vs. variable-frequency architectures. |
Applications
| TFT-LCD Bias Supply | Broadband Communications |
|---|---|
Use Scenario: Generating +18V and −10V bias rails for active matrix LCD source/gate drivers in set-top boxes and monitors. IC Role / Device Role / Timing Role: Primary positive-output boost regulator delivering 500mA at 18V from 12V input with tight line/load regulation. Use Value: Enables single-chip bias generation with <0.1% load regulation and 85% peak efficiency at 500mA, eliminating discrete boost stages. | Use Scenario: Providing stable 24V bias for RF front-end amplifiers and optical transceivers in DSL and cable modems. IC Role / Device Role / Timing Role: Local boost regulator stepping 12V mid-rail to 24V with fast transient response to handle burst-mode RF load changes. Use Value: Delivers 1.2A peak switch current and 1.2MHz switching to minimize output ripple (<30mVpp) without LC filters. |
| STB Multimedia Power | SEPIC Converter Core |
Use Scenario: Powering audio DACs, HDMI PHYs, and tuners requiring clean 5V/3.3V rails derived from 12V main supply in satellite receivers. IC Role / Device Role / Timing Role: Intermediate boost stage feeding downstream buck converters, operating at light loads with pulse-skipping suppression. Use Value: Achieves <10µA shutdown current and programmable soft start to meet STB standby power budgets (<100mW). | Use Scenario: Configured as SEPIC to regulate output when input may dip below output (e.g., 5V–18V input to 12V output in battery-backed systems). IC Role / Device Role / Timing Role: Constant-frequency current-mode controller driving coupled inductor topology with inherent input/output isolation. Use Value: Uses same 1.25V FB reference and 1.2MHz oscillator as boost mode-no component or firmware change required for topology reuse. |
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 | 1.5A MOSFET switch, 1.3MHz, 28V max switch voltage, no OVP | Lacks output over-voltage protection; requires external OVP circuit for 40V-capable systems | Select when higher peak current (1.5A) is needed and OVP is implemented externally. |
| TPS61088RHLR | 12V max input, 2.7A switch, 500kHz–2.2MHz adjustable frequency, integrated OVP | Lower input voltage ceiling (12V) limits use in 19V industrial rails; higher frequency flexibility aids EMI tuning | Select when input stays ≤12V and >1.2A output current is required with programmable frequency. |
Compared with MIC2601YML-TR, MP1542DK-LF-Z offers higher current but no built-in OVP, while TPS61088RHLR provides greater current and frequency tuning but sacrifices 20V input capability-making MIC2601YML-TR optimal for wide-input, OVP-critical 1.2A boost applications.
Availability
MIC2601YML-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 industrial temperature ranges and long production lifecycles.
Supply support for MIC2601YML-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 designer acquired by Microchip Technology in 2015; its legacy power products remain widely deployed in industrial and communications infrastructure.
The MIC2601/2 family was designed specifically for space-constrained, high-efficiency DC-DC boost conversion in display bias, telecom, and embedded systems-emphasizing integration, thermal robustness, and ceramic-capacitor compatibility.
FAQ
What is the maximum output voltage supported by the MIC2601YML-TR?
The MIC2601YML-TR supports output voltages up to 40V, enforced by internal over-voltage protection that triggers at 15% above the programmed output (e.g., 46V trip for 40V setting). This limit is defined by the 40V-rated internal bipolar switch and OVP comparator architecture-not by external component selection alone.
Does the MIC2601YML-TR require an external diode, and what type is recommended?
Yes, the MIC2601YML-TR requires an external Schottky diode connected between SW and VOUT. A 3A, 60V Schottky such as B360A is recommended-its low forward voltage (~0.6V) and fast recovery minimize conduction loss and prevent reverse recovery spikes that could destabilize the current-mode loop.
How does the soft-start function work on the MIC2601YML-TR, and how is it configured?
The MIC2601YML-TR uses a capacitor-connected SS pin to linearly ramp the internal current limit during startup. A 0.1µF capacitor yields ~1ms soft-start time; larger values extend ramp duration proportionally. This prevents inrush into output capacitance and avoids triggering input undervoltage lockout during turn-on.
Can the MIC2601YML-TR operate with input voltage lower than 4.5V?
No-the MIC2601YML-TR has a guaranteed 4.5V minimum input per Absolute Maximum Ratings and Operating Ratings. Below 4.5V, UVLO (2.1V typical on VDD) disables regulation, and internal bias circuits cannot sustain stable 1.25V reference or oscillator operation-even if VIN momentarily rises above threshold.
What is the thermal performance of the MIC2601YML-TR in its 2mm × 2mm MLF package?
The MIC2601YML-TR has θJA = 90°C/W and θJC = 45°C/W in the 8-pin MLF package. With proper PCB copper pour under the EP pad, it sustains 1.2A switch current continuously at +85°C ambient; derating begins above 100°C junction temperature, with thermal shutdown activating at 150°C.
MIC2601YML-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:
- 1.12MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MLF® (2x2)
MIC2601YML-TR FAQ
1.How can I place an order for MIC2601YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2601YML-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 MIC2601YML-TR reliable?
The price and inventory of MIC2601YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2601YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2601YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2601YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2601YML-TR?
MIC2601YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2601YML-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 MIC2601YML-TR?
For technical support, including MIC2601YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2601YML-TR requirements.
6.How does Aetrix verify that MIC2601YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2601YML-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 MIC2601YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2601YML-TR?
All MIC2601YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2601YML-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 MIC2601YML-TR part is unused and in its original packaging.
Return procedure for MIC2601YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC2601YML-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…
