MIC2005A-2YM6-TR - 500mA High-Side USB Power Switch SOT-23-6 | Microchip
MPN: MIC2005A-2YM6-TR ✓ פעילMIC2005A-2YM6-TR סקירה
A USB high-side power switch is a type of load switch that sits between a system power rail (typically 5 V) and a downstream USB port or peripheral. Its role is to turn the rail on or off under logic control, present a defined upstream current to the host, and protect both the host and the device from over-current, short-circuit, and inrush events. The MIC20XX family sits within the broader power management IC hierarchy of load switches -> power distribution switches -> USB switches -> power management ICs, complementing LDOs and DC-DC converters on the power tree.
Key features include a fixed 500 mA current limit, a 2.5 V to 5.5 V input operating range, low quiescent current, integrated soft-start to control inrush current, an active-high enable input, fault-flag output for over-current and thermal events, under-voltage lockout, and thermal shutdown. Typical on-resistance is approximately 70 mΩ at 5 V, providing low dropout and minimal power dissipation in normal operation. The device requires no external MOSFET, sense resistor, or current-setting network.
The MIC2005A-2YM6-TR is the -2 active-high enable variant of the family and ships on tape-and-reel for high-volume assembly. Its small SOT-23-6 footprint, integrated protection, and minimal external BOM make it well suited to compact, cost-sensitive 5 V rails such as USB ports, HDMI ports, and downstream power connectors on consumer and computing platforms.
Typical applications include USB 2.0 downstream ports on PCs and laptops, HDMI link power switching, set-top boxes, printers, digital televisions, and any port that needs self-powered or bus-powered current limiting. Pair the MIC2005A-2YM6-TR with an upstream 5 V LDO or buck regulator and follow the datasheet bulk-capacitor guidance to remain USB 2.0 compliant under load steps.
When designing with this device, place the input and output bulk capacitors as close as possible to the IC and observe the datasheet derating curve for short-circuit and over-current behavior. Thermal layout is straightforward because typical load currents are 500 mA or less, but continuous fault conditions must be considered.
This page combines verified distributor pricing, drop-in alternatives from the same MIC20XX family and competing vendors, and practical PCB design notes not bundled in the manufacturer datasheet, giving a faster engineering decision path than scanning individual distributor listings.
חלופות תחליף ישיר עבור MIC2005A-2YM6-TR — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MIC2005A-2YM6-TR (אותו גורם צורה וטביעת רגל) — שונים ב Fault Flag Output, Function, Operating Temperature Range, Package, Thermal Shutdown.
MIC2009A-2YM6-TR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MIC2019YM6-TR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MIC2005A-1YM6-TR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MIC2005-1.2YM6-TR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MIC2005A-2YM6
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
TPS2553DBVR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MIC2005A-2YM6-TR דירוגים מרביים ומאפיינים חשמליים
| פונקציה | High-side P-channel MOSFET power distribution switch |
| טופולוגיה | 1:1 P-Channel load switch |
| טווח מתח כניסה | 2.5 V to 5.5 V |
| Output Current (Continuous) | 500 mA |
| Fixed Current Limit | 500 mA (typical) |
| On-Resistance (RON) | 70 mΩ typical at 5 V |
| Enable Polarity | Active-high (logic level) |
| Fault Flag Output | Yes, active-low /FLAG for over-current and thermal events |
| Under-Voltage Lockout | Yes (integrated) |
| כיבוי תרמי | Yes (integrated) |
| Soft-Start / Slew-Rate Control | Yes (integrated, inrush limiting) |
| טווח טמפרטורת פעולה | -40 °C to +85 °C |
| מארז | SOT-23-6 (6-pin) |
| סוג הרכבה | Surface Mount |
| רמת MSL | 1 |
| סטטוס RoHS | Compliant |
| Lead-Free | Yes |
| Packaging | Tape & Reel (TR) |
| Switch Family | MIC20XX current-limited high-side switch family |
תצורת פינים של MIC2005A-2YM6-TR
| פין 1 | EN — Active-high enable input; logic high turns the switch on |
| פין 2 | VIN — Input supply voltage (2.5 V to 5.5 V); connect bulk capacitor here |
| פין 3 | GND — Ground reference for the IC |
| פין 4 | /FAULT — Active-low open-drain fault flag; asserted on over-current or thermal shutdown |
| פין 5 | VOUT — Switched output to the load; connect bulk capacitor here |
| פין 6 | NC — Not connected internally (per SOT-23-6 layout, reserved pad) |
יישומים טיפוסיים
MIC2005A-2YM6-TR מתאים עבור 6 יישוםs: USB 2.0 Downstream Port Power Switch, HDMI Port Link Power Switching, Set-Top Box / DTV USB Port Power, Printer and Peripheral USB Power, Tablet and Accessory 5 V Load Switch, Industrial Sensor / Modem Power Distribution.
USB 2.0 Downstream Port Power Switch
The MIC2005A-2YM6-TR's 500 mA fixed current limit directly matches the USB 2.0 high-power downstream port budget, while its integrated soft-start controls inrush when hot-plug events occur. The internal P-channel MOSFET RON of ~70 mΩ keeps the 5 V rail drop below ~35 mV at full load, preserving USB voltage tolerance at the connector. Designers use the /FAULT pin to notify the host controller of over-current events, enabling port-power management on PCs, laptops, and docking stations where per-port current limiting is required by USB compliance.
מומלץ
HDMI Port Link Power Switching
HDMI link power (5 V) supplies the HDMI connector and downstream receiver; the MIC2005A-2YM6-TR's 2.5-5.5 V range, 500 mA limit, and 70 mΩ RON suit this rail cleanly. The active-high enable pin allows the graphics controller to power-down the HDMI port in low-power states, while the integrated fault flag reports cable or sink faults back to the GPU. Placing a bulk capacitor near the switch output per the MIC20XX datasheet limits inrush into the HDMI sink and meets HDMI compliance load-step behavior.
מומלץ
Set-Top Box / DTV USB Port Power
In set-top boxes and digital televisions, the MIC2005A-2YM6-TR provides a single-IC solution for self-powered USB ports that must deliver up to 500 mA per the USB 2.0 specification. The 6-pin SOT-23-6 footprint is well suited to compact STB/DTV mainboards, and the integrated thermal shutdown protects against output short-to-VBUS faults. The /FAULT output can drive an LED or a GPIO on the main SoC for user diagnostics, simplifying the BOM compared with a discrete MOSFET + op-amp current-sense circuit.
מומלץ
Printer and Peripheral USB Power
Printers and office peripherals use the MIC2005A-2YM6-TR to switch the upstream-facing USB port that connects to a host PC. The 500 mA fixed current limit prevents back-fed faults from damaging the host if the printer cable shorts, and the integrated soft-start avoids nuisance trips when large output bulk capacitors on the printer's internal rail are charged. With a 5.5 V maximum input, the switch operates safely from any USB-compliant 5 V VBUS rail even with cable IR-drop included.
מומלץ
Tablet and Accessory 5 V Load Switch
Tablets, accessories, and battery-powered products use the MIC2005A-2YM6-TR as a low-loss load switch between a 3.7-4.2 V Li-ion rail or 5 V boost rail and downstream peripherals. The 70 mΩ RON limits conduction loss to ~35 mW at 500 mA, extending battery life, and the active-high enable ties cleanly to a GPIO. The /FAULT output alerts the system PMIC when downstream current exceeds the USB or accessory budget, enabling graceful power-down.
מומלץ
Industrial Sensor / Modem Power Distribution
Industrial sensor gateways and cellular modems use the MIC2005A-2YM6-TR to switch a 5 V rail feeding the modem or sensor stack. The 2.5-5.5 V range accepts both 3.3 V and 5 V rails, and the integrated under-voltage lockout prevents operation when the rail sags during input brownouts. The /FAULT output can be wired to the host MCU to trigger a controlled modem reset on persistent over-current, while thermal shutdown protects the system against output wiring faults in the field.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MIC2005A-2YM6-TR — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MIC2009A-2YM6-TR | MIC2019YM6-TR | MIC2005A-1YM6-TR | MIC2005-1.2YM6-TR | TPS2553DBVR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Package | SOT-23-6 | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 (DBV) - same |
| Current Limit | 500 mA fixed | 900 mA fixed | Adjustable (via external resistor) | 500 mA fixed | 500 mA fixed | Adjustable up to 1.5 A |
| Enable Polarity | Active-high (EN) | Active-high | Active-high | Active-LOW | Active-high | Active-high |
| On-Resistance (5 V) | 70 mΩ typical | 70 mΩ typical | 70 mΩ typical | 70 mΩ typical | 70 mΩ typical | ~100 mΩ typical |
| Input Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 6.5 V |
| Fault Flag | Yes (active-low) | Yes (active-low) | Yes (active-low) | Yes (active-low) | Yes (active-low) | Yes (active-low) |
| Thermal Shutdown | Yes (integrated) | Yes | Yes | Yes | Yes | Yes |
| Approx. Unit Price (qty 1) | $0.86 | ~$0.95 | ~$1.00 | ~$0.86 | ~$0.90 | ~$1.05 |
מבדילים עיקריים
- Single-IC integrated 500 mA current limit and fault flag (לעומתDiscrete P-MOSFET + sense resistor + op-amp current-sense circuit)
- Drop-in upgrade path within MIC20XX family (לעומתMIC2009A-2YM6-TR (900 mA))
- 70 mΩ typical RON in SOT-23-6 (לעומתTPS2553DBVR (~100 mΩ))
הערות תכנון
Place the VIN and VOUT bulk capacitors as close as possible to the MIC2005A-2YM6-TR pins. Per the MIC20XX family datasheet, a 1 uF ceramic on VIN and a 1 uF to 22 uF bulk on VOUT are typical. Short, wide traces from VOUT to the load reduce voltage drop during high di/dt load steps on USB VBUS. Keep the /FAULT pull-up resistor close to the IC to avoid false trips from leakage.
Estimated: at VIN=5 V, VOUT=5 V, and 500 mA continuous load, the IC dissipates approximately P = I² * RON = 0.5² * 0.07 = 17.5 mW, which is negligible in the SOT-23-6 footprint. Under fault conditions in current-limit, however, dissipation can rise sharply (P_fault ≈ (VIN - VOUT_fault) * ILIMIT); thermal shutdown will engage. Ensure the layout copper area keeps θJA low enough to ride out transient faults.
Do not exceed 5.5 V on VIN: the MIC2005A-2YM6-TR is rated for USB VBUS and 5 V rails only, not 12 V. Do not leave VOUT floating when EN is asserted; an unloaded VOUT can ring and falsely assert /FAULT. For active-low enable systems, use the MIC2005A-1YM6-TR instead - swapping polarity at the board level is a common bring-up bug. Always populate a bulk cap on VOUT per the datasheet to avoid inrush-induced false trips.
מידע על תאימות
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified - not intended for automotive. Operating temperature -40 °C to +85 °C is industrial/commercial grade.
