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Monolithic Power Systems Inc. MP62170ES-LF-P
- Part No.:
- MP62170ES-LF-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP62170ES-LF-P.pdf
- Description:
- NRFND: USE MP62550, MP62551 AS R
- Quantity:
- Payment:
- Shipping:
Inventory:2,540
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Product details
Overview
MP62170ES-LF-P from Monolithic Power Systems is a single-channel, active-low enable, current-limited power distribution switch with 1.5A continuous load capability, 75mΩ RDS(on), and integrated thermal shutdown and under-voltage lockout. It operates from 2.7V to 5.5V input and delivers precise current limiting (typ. 2.3A short-circuit trip) for USB power distribution and portable device load switching.
For engineers reviewing the MP62170ES-LF-P datasheet, MP62170ES-LF-P pinout, MP62170ES-LF-P application, or MP62170ES-LF-P equivalent, this device is selected for robust overcurrent protection in space-constrained 5V rail management-especially where reverse current blocking, 8ms FLAG deglitching, and SOIC8 footprint compatibility are required.
Technical Context
The MP62170ES-LF-P integrates a low-RDS(on) N-channel MOSFET with analog current-sense amplifier and thermal foldback logic. Its constant-current limiting activates at ≥2.3A (typ.) during overload, transitioning smoothly from linear regulation to current clamp without oscillation.
It features an open-drain FLAG output with 8ms deglitch timeout, UVLO with 2.65V rising threshold and 250mV hysteresis, and reverse current blocking that limits leakage to 0.2µA when VOUT > VIN. The EN pin is active-low and TTL/CMOS-compatible.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 1.5A - Sustained load current without thermal shutdown under 25°C ambient and proper PCB copper area. |
| Current Limit Trip | 2.3A (typ.) - Triggers constant-current mode within microseconds to protect downstream circuitry during short circuits. |
| RDS(on) | 75mΩ (typ.) - Minimizes voltage drop (<75mV @ 1A) and power loss (75mW @ 1A) on 5V rails. |
| Supply Voltage Range | 2.7V to 5.5V - Supports direct integration into USB 5V, Li-ion battery-backed, and 3.3V–5V system rails. |
| FLAG Deglitch Time | 8ms - Suppresses transient fault pulses, eliminating need for external RC filtering on fault reporting lines. |
| Quiescent Current | 90µA (typ.) - Enables low-power standby operation without compromising fast turn-on response (3ms typical). |
| Thermal Shutdown | 140°C - Automatically disables output to prevent permanent junction damage; recovers at ~120°C. |
Pinout & Package
MP62170ES-LF-P is housed in an 8-pin SOIC package (5.0mm × 6.2mm, 1.27mm pitch) with no exposed pad. Pin 1 is marked by a notch or circle; leads are gull-wing, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference for internal bias, current sense, and thermal sensing; must connect to low-impedance system ground plane. |
| 2, 3 | IN | Input power rail connection (2.7V–5.5V); dual pins reduce trace resistance and improve current handling up to 1.5A. |
| 4 | EN* | Active-low enable control; pulls low to activate switch; high-Z when disabled; compatible with 3.3V/5V logic. |
| 5 | FLAG | Open-drain fault indicator; asserts low after 8ms deglitched overcurrent or thermal event; requires external pull-up. |
| 6, 7, 8 | OUT | Switched output terminals; paralleled internally to deliver full 1.5A load current with minimal IR drop. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Current Blocking | 0.2µA max reverse leakage ensures no backfeed from powered loads into source rail during hot-swap or fault conditions. |
| No FLAG Glitch During Power-Up | Internal power-on reset prevents false fault assertion during VIN ramp, eliminating need for external POR circuitry. |
| Under-Voltage Lockout (UVLO) | 2.65V rising threshold with 250mV hysteresis guarantees clean enable/disable behavior across brown-out conditions. |
| Thermal-Shutdown Hysteresis | 20°C hysteresis (140°C trip / 120°C recovery) prevents oscillation near thermal limit and supports safe auto-restart. |
| Low Quiescent Power | 90µA supply current enables use in always-on subsystems (e.g., USB-C accessory detection) without battery drain penalty. |
Applications
| Smartphone Peripheral Power | USB 2.0 VBUS Switching |
|---|---|
|
Use Scenario: Managing power to removable accessories (e.g., OTG adapters, card readers) in smartphones with strict thermal and size constraints. IC Role / Device Role / Timing Role: Single-channel load switch controlling VBUS delivery with current-limiting and fault flagging for host processor monitoring. Use Value: Prevents system reset during accessory short-circuit events while maintaining <10ms fault response and zero external components for FLAG debouncing. |
Use Scenario: Enabling/disabling 5V power to downstream USB ports in embedded hubs or docking stations. IC Role / Device Role / Timing Role: High-side power switch with reverse-blocking and UVLO ensuring safe hot-plug compliance per USB 2.0 spec. Use Value: Eliminates risk of backfeed into upstream port and guarantees clean power sequencing with 3ms turn-on and 10ms turn-off timing. |
| Notebook PC Card Slot | Portable GPS Power Management |
|
Use Scenario: Isolating PCMCIA/ExpressCard slot power in ultrabooks to meet platform-level power budget and thermal targets. IC Role / Device Role / Timing Role: Current-limited distribution switch with thermal foldback protecting main PMIC during card insertion faults. Use Value: Delivers 1.5A peak load current with 75mΩ RDS(on) to minimize voltage droop, while thermal shutdown prevents sustained >140°C die temperature. |
Use Scenario: Controlling power to GPS RF front-end and baseband ICs in handheld navigation devices operating on single-cell Li-ion. IC Role / Device Role / Timing Role: Low-quiescent (90µA), wide-input (2.7–5.5V) load switch enabling efficient battery-powered operation. Use Value: Extends runtime by minimizing idle power loss and maintains stable 5V output even as battery discharges from 4.2V to 3.0V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar current-limited power distribution switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TI TPS2051BDBVR | 1.5A limit, 120mΩ RDS(on), no reverse blocking, 20ms FLAG deglitch | Lacks reverse current blocking and has higher conduction loss; suitable only where backfeed is not possible | Select if cost sensitivity outweighs reverse-blocking requirement and board space allows larger thermal pad. |
| ON Semi NCP45520MUTBG | 2.5A limit, 32mΩ RDS(on), active-high EN, 10ms FLAG deglitch, thermal warning flag | Higher current rating and lower RDS(on), but requires redesign for active-high enable and adds thermal warning signal | Choose for higher efficiency in 2A+ loads, provided system firmware supports dual-flag (FAULT + THERMAL_WARN) interface. |
Compared with TPS2051BDBVR and NCP45520MUTBG, MP62170ES-LF-P offers optimal balance of low RDS(on), reverse blocking, and compact SOIC8 footprint-making it preferred for USB and portable designs where layout area and fault immunity are critical.
Availability
MP62170ES-LF-P is available at Aetrix Electronics and suitable for smartphone peripheral power, USB 2.0 VBUS switching, and notebook PC card slot applications requiring stable component supply, RoHS-compliant packaging, and long-term industrial availability.
Supply support for MP62170ES-LF-P 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with design centers in the US, China, and Taiwan, and global manufacturing partnerships.
The MP62170 series belongs to MPS's load switch product line, engineered specifically for reliable, low-footprint power rail control in portable and USB-powered systems where fault resilience and minimal BOM count are essential.
FAQ
What is the logic polarity of the EN pin on MP62170ES-LF-P?
The EN pin on MP62170ES-LF-P is active-low: the switch turns ON when EN is pulled low (≤0.8V) and turns OFF when EN is high (≥2V). This matches the "MP62170" variant designation in the ordering table and differs from the MP62171's active-high EN.
Does MP62170ES-LF-P support reverse current flow from OUT to IN?
Yes-MP62170ES-LF-P provides reverse current blocking with ≤0.2µA leakage when VOUT = 5.5V and VIN = GND. This prevents backfeeding into the source rail during hot-swap or fault conditions, a key requirement for USB and battery-backed systems.
What is the minimum input voltage required for reliable operation?
The MP62170ES-LF-P requires a minimum input voltage of 2.7V to operate. Below this, the under-voltage lockout (UVLO) circuit disables the switch; the rising UVLO threshold is guaranteed at 1.95V min and 2.65V typ, with 250mV hysteresis.
How does the FLAG pin behave during thermal shutdown?
During thermal shutdown, the FLAG pin asserts low immediately-without deglitching-as the thermal fault takes priority over current-limit events. The 8ms deglitch applies only to overcurrent detection; thermal and UVLO faults trigger FLAG instantly.
Can MP62170ES-LF-P drive a 100µF output capacitor safely?
Yes-the device specifies 3ms typical turn-on time with CL = 100µF and RL = 5.5Ω, confirming safe inrush control. Its internal slew-rate limiting and current limiting prevent destructive inrush currents, eliminating need for external soft-start circuitry.
Is the SOIC8 package of MP62170ES-LF-P lead-free and RoHS-compliant?
Yes-the "-LF" suffix in MP62170ES-LF-P explicitly denotes lead-free, RoHS-compliant packaging per EU Directive 2011/65/EU, verified through MPS's material declarations and third-party testing reports.
What is the maximum power dissipation in SOIC8 at 25°C ambient?
The maximum continuous power dissipation for MP62170ES-LF-P in SOIC8 is 1.4W at TA = +25°C, calculated from θJA = 90°C/W and TJ(MAX) = 150°C. Derating is required above 25°C ambient per the PD(MAX) = (150 – TA)/90 formula.
MP62170ES-LF-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- MP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N/P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1.5A
- Rds On (Typ):
- 75mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MP62170ES-LF-P FAQ
1.How can I place an order for MP62170ES-LF-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP62170ES-LF-P 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 MP62170ES-LF-P reliable?
The price and inventory of MP62170ES-LF-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP62170ES-LF-P is usually 5 days.
3.What payment methods are accepted for MP62170ES-LF-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP62170ES-LF-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP62170ES-LF-P?
MP62170ES-LF-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP62170ES-LF-P 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 MP62170ES-LF-P?
For technical support, including MP62170ES-LF-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP62170ES-LF-P requirements.
6.How does Aetrix verify that MP62170ES-LF-P is sourced from the original manufacturer or authorized distributors?
All MP62170ES-LF-P 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 MP62170ES-LF-P meets industry standards.
7.What is the process for return or replacement of MP62170ES-LF-P?
All MP62170ES-LF-P units undergo pre-shipment inspection (PSI). If there is an issue with MP62170ES-LF-P, 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 MP62170ES-LF-P part is unused and in its original packaging.
Return procedure for MP62170ES-LF-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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