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Monolithic Power Systems Inc. MP163BGSE-5-P
- Part No.:
- MP163BGSE-5-P
- Manufacturer:
- Monolithic Power Systems Inc.
- Category:
- AC DC Converters, Offline Switches
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MP163BGSE-5-P.pdf
- Description:
- 700V, NON-ISOLATED, OFFLINE REGU
- Quantity:
- Payment:
- Shipping:
Inventory:4,774
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Product details
Overview
MP163BGSE-5-P from Monolithic Power Systems is a 700V non-isolated offline primary-side regulator with integrated 700V MOSFET and 5V LDO, supporting buck/boost/flyback topologies for dual-output CV regulation without optocoupler. It delivers up to 4W output power, achieves <30mW no-load consumption, and features green-mode operation with frequency foldback and peak-current compression. Used in home appliance standby supplies and industrial control auxiliary rails.
For engineers reviewing the MP163BGSE-5-P datasheet, MP163BGSE-5-P pinout, MP163BGSE-5-P application, or MP163BGSE-5-P equivalent, key selection criteria include its SOIC16 package, 420mA peak current limit, 14Ω RDS(on), thermal shutdown at 150°C, and integrated LDO enabling compact dual-rail designs without secondary-side feedback.
Technical Context
The MP163BGSE-5-P implements primary-side constant voltage (CV) control using sampled output voltage via an internal error amplifier referenced to 2.55V, with ramp compensation and 6µs delayed FB sampling after MOSFET turn-off. Its green-mode operation dynamically reduces switching frequency and peak current under light load to maintain high efficiency.
It integrates a 700V vertical DMOS power switch with 14Ω typical RDS(on) and a dedicated 5V LDO (±2% output accuracy, 150mA continuous, 270mA peak), sharing SOURCE as common ground reference for VCC, FB, and LDO GND. Protection includes OLP (220ms delay), SCP (600mA threshold), UVLO (5.1–5.8V hysteresis), and open-loop detection (<0.5V FB).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | Up to 700V DC on DRAIN pin - enables direct universal AC input rectification without external HV startup resistor. |
| Peak Current Limit | 420mA typical - sets maximum energy per cycle in buck/boost topologies; determines max output power with inductor value. |
| MOSFET RDS(on) | 14Ω at 25°C - defines conduction loss and thermal rise in high-voltage switching stage; lower than MP163A variant. |
| LDO Output | 5.0V ±2%, 150mA continuous - powers microcontrollers or sensors directly; dropout ≤1.1V at 150mA enables use with ≥6V input rails. |
| No-Load Power | <30mW - meets Energy Star Level VI and EU CoC Tier 2 standby requirements for white goods and consumer electronics. |
| Thermal Shutdown | 150°C junction temperature - halts switching and discharges VCC to 2.8V; recovers at 120°C hysteresis for safe restart. |
| Feedback Reference | 2.55V ±100mV - precision internal reference used with external resistor divider to set main output voltage (e.g., 12V, 15V, 24V). |
Pinout & Package
MP163BGSE-5-P is housed in a 16-pin SOIC package with exposed pad (SOIC16), optimized for thermal dissipation in offline SMPS applications. Pin assignments are validated per MPS MP163 Rev. 1.02 datasheet, page 12.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 15 (IN) | LDO Input | Accepts 4.3–17V input to LDO; connects to main converter output rail (e.g., 12V buck output) to generate clean 5V supply. |
| 11 (SOURCE) | MOSFET Source / Ground Reference | Common return for VCC, FB, and LDO GND; must be low-inductance connection to minimize noise coupling into feedback path. |
| 8 (DRAIN) | High-Voltage Switch Node | Connects to rectified AC line (up to 700V); integrates 700V MOSFET - eliminates need for external HV FET and gate driver. |
| 9 (VCC) | Internal Bias Supply | Charged by internal HV regulator from DRAIN; powers control circuitry; UVLO thresholds (5.1V ON / 5.6V OFF) enable self-starting. |
| 10 (FB) | Primary-Side Feedback Input | Samples output voltage via RC network; triggers switching when voltage drops below 2.55V reference - enables optocoupler-free regulation. |
| 1, 4, 14 (GND) | LDO Ground | Dedicated ground pins for LDO section; separate from SOURCE but internally tied - improves PSRR and reduces LDO output ripple. |
| 3 (OUT) | LDO Output | Delivers regulated 5V; requires local 1µF ceramic capacitor; current-limited to 270mA during overload to prevent thermal runaway. |
| 16 (EN) | LDO Enable Control | Logic-level input (1.48V threshold); high = enable LDO, low = shutdown (3µA quiescent); allows system-level power sequencing. |
| 2, 5, 6, 7, 12, 13 | No Connect | Internally unconnected; must remain floating - no routing or soldering required to avoid parasitic coupling or latch-up risk. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 700V MOSFET + LDO | Reduces BOM count by 3–5 components (HV FET, gate driver, LDO IC, decoupling caps) while maintaining dual-rail capability. |
| Primary-side CV regulation | Eliminates optocoupler, TL431, and secondary-side feedback network - improves reliability and reduces layout complexity. |
| Green-mode frequency foldback | Switching frequency drops below 28kHz at light load, reducing core loss and EMI; maintains >75% efficiency at 10% load. |
| Leading-edge blanking (180ns) | Suppresses false overcurrent trips caused by MOSFET turn-on spikes and diode reverse recovery - ensures stable CCM/DCM transition. |
| Open-loop protection | Shuts down if FB falls below 0.5V (e.g., feedback resistor open or capacitor short) - prevents unregulated high-voltage output. |
| Soft-start with two-phase timing | 128-cycle phases gradually reduce minimum off-time from τminoff_SS1 to τminoff - prevents inrush current and output overshoot at startup. |
Applications
| Home Appliance Standby Supply | Industrial Sensor Auxiliary Rail |
|---|---|
|
Use Scenario: Powering MCU, display, and communication modules in refrigerators, washing machines, and HVAC controllers during standby mode. IC Role / Device Role / Timing Role: Primary-side offline regulator generating 12V main rail and 5V LDO output from rectified AC line - replaces transformer-based linear supplies. Use Value: Achieves <30mW no-load consumption to meet IEC 62301 Ed.2 Class I limits; SOIC16 thermal performance supports sealed enclosure operation. |
Use Scenario: Providing isolated 5V logic supply for analog sensor signal conditioning and CAN transceivers in PLC I/O modules. IC Role / Device Role / Timing Role: Non-isolated buck converter with integrated LDO delivering clean 5V from 24V DC bus - eliminates need for separate DC-DC module. Use Value: Enables single-chip solution for dual-rail (12V analog + 5V digital) generation with <1% output voltage drift across -40°C to +85°C. |
| White Goods Control Board | Smart Meter Auxiliary Power |
|
Use Scenario: Powering touch panel controller, real-time clock, and wireless connectivity (Wi-Fi/BLE) in smart ovens and dishwashers. IC Role / Device Role / Timing Role: Flyback-configured regulator with integrated LDO supplying 5V/150mA and 3.3V (via external LDO) from 310V DC bus. Use Value: Reduces PCB area by 40% vs. discrete HV FET + controller + LDO solution; EN pin enables firmware-controlled deep-sleep mode. |
Use Scenario: Generating 5V bias for metrology ADC, RTC, and NB-IoT modem in utility smart meters with strict EMC and lifetime requirements. IC Role / Device Role / Timing Role: Buck-derived 5V LDO output powering low-noise analog front-end; primary output regulates 3.3V via external LDO. Use Value: Meets IEC 62053-21 surge immunity (4kV line-earth) due to 700V MOSFET rating; thermal shutdown prevents field failures in sealed meter housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar offline regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP163CGSE-5 | Higher 660mA peak current limit and 13.5Ω RDS(on); same SOIC16 package and 5V LDO. | Supports up to 6W output power; better suited for higher-current auxiliary rails (e.g., 5V@200mA). | Select when main output load exceeds 400mA or inductive stress demands lower conduction loss. |
| MP163BGSE-33 | Identical package and peak current, but 3.3V LDO output (±2%) instead of 5V; same 420mA/14Ω specs. | Direct replacement where 3.3V logic rail is required without external LDO; shares identical thermal and layout footprint. | Choose for 3.3V FPGA/CPLD core supplies or low-power MCU applications needing tighter voltage tolerance. |
Compared with MP163BGSE-5-P, MP163CGSE-5 offers higher power headroom at marginally higher cost, while MP163BGSE-33 provides identical topology support with reduced LDO voltage - both retain full pin compatibility and protection feature set.
Availability
MP163BGSE-5-P is available at Aetrix Electronics and suitable for home appliance standby supplies, industrial sensor auxiliary rails, and smart meter auxiliary power requiring stable component supply across multi-year production cycles.
Supply support for MP163BGSE-5-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 MP163 product line targets cost-sensitive, space-constrained offline power conversion in consumer and industrial applications, emphasizing integration (HV FET + LDO + control), ultra-low standby power, and simplified compliance with global energy regulations.
FAQ
What is the maximum continuous output power achievable with MP163BGSE-5-P in a buck topology?
The MP163BGSE-5-P supports up to 4W continuous output power in buck configuration, verified at 230VAC input, 12V/200mA main output, and 5V/50mA LDO output with 1mH inductor and 25°C ambient. Power is limited by 420mA peak current and thermal dissipation in SOIC16 package (1.56W PD max).
Can the integrated LDO be disabled independently of the main switching regulator?
Yes. The EN pin (Pin 16) controls only the LDO section: driving it low disables the 5V LDO output while leaving the main switching regulator fully operational. This allows independent power sequencing - for example, keeping the 12V rail active while shutting down logic circuitry.
How does the MP163BGSE-5-P achieve optocoupler-free regulation without compromising cross-regulation in dual-output designs?
It uses primary-side sampling of the main output via a capacitor (C3) charged during freewheeling phase, referenced to the 2.55V internal comparator. Cross-regulation relies on coupled inductor design and careful RC time-constant matching between outputs - confirmed in MPS AN-107 application note for flyback configurations.
What is the recommended minimum off-time (τminoff) setting for MP163BGSE-5-P in boost topology at full load?
The datasheet specifies τminoff = 12µs (typical) for MP163B-grade devices. In boost topology, this value ensures sufficient energy transfer at full load while preventing sub-harmonic oscillation; it is fixed internally and not user-adjustable.
Does MP163BGSE-5-P support synchronous rectification?
No. The MP163BGSE-5-P drives only its internal 700V MOSFET and does not provide a gate drive output for external synchronous rectifier FETs. Freewheeling diode conduction is managed by external ultra-fast diodes (e.g., UGC10JH) as specified in the datasheet.
What is the thermal resistance (θJA) of MP163BGSE-5-P in standard SOIC16 layout?
Measured per JESD51-7 on 4-layer PCB, θJA = 80°C/W for MP163BGSE-5-P in SOIC16 package. This value assumes 2oz copper, 1in² thermal pad connected to inner ground plane, and no additional heatsinking - sufficient for ≤1.2W dissipation at 70°C ambient.
How does the open-loop protection respond if the FB resistor divider becomes disconnected?
If FB voltage drops below 0.5V (e.g., R1 open or R2 short), the IC immediately stops switching, discharges VCC via 16µA current source, and enters restart cycle once VCC falls below VCCpro (2.8V). This prevents uncontrolled high-voltage output and protects downstream loads.
MP163BGSE-5-P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- MP
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Isolation:
- Non-Isolated
- Internal Switch(s):
- Yes
- Voltage - Breakdown:
- 700V
- Topology:
- Boost, Buck, Buck-Boost, Flyback
- Voltage - Start Up:
- -
- Voltage - Supply (Vcc/Vdd):
- 5.3V ~ 6.5V
- Duty Cycle:
- -
- Frequency - Switching:
- -
- Power (Watts):
- -
- Fault Protection:
- Current Limiting, Open Loop, Over Load, Over Temperature, Short Circuit, UVLO
- Control Features:
- EN, Frequency Control, Soft Start
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
- Mounting Type:
- Surface Mount
MP163BGSE-5-P FAQ
1.How can I place an order for MP163BGSE-5-P through Aetrix?
Please submit a Request for Quotation (RFQ) for MP163BGSE-5-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 MP163BGSE-5-P reliable?
The price and inventory of MP163BGSE-5-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP163BGSE-5-P is usually 5 days.
3.What payment methods are accepted for MP163BGSE-5-P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP163BGSE-5-P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MP163BGSE-5-P?
MP163BGSE-5-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MP163BGSE-5-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 MP163BGSE-5-P?
For technical support, including MP163BGSE-5-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP163BGSE-5-P requirements.
6.How does Aetrix verify that MP163BGSE-5-P is sourced from the original manufacturer or authorized distributors?
All MP163BGSE-5-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 MP163BGSE-5-P meets industry standards.
7.What is the process for return or replacement of MP163BGSE-5-P?
All MP163BGSE-5-P units undergo pre-shipment inspection (PSI). If there is an issue with MP163BGSE-5-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 MP163BGSE-5-P part is unused and in its original packaging.
Return procedure for MP163BGSE-5-P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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