My Inquiry
My Account
Microchip Technology MCP1663T-E/MNY
- Part No.:
- MCP1663T-E/MNY
- Manufacturer:
- Microchip Technology
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
MCP1663T-E/MNY.pdf
- Description:
- IC REG BOOST ADJ 375MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,899
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP1663T-E/MNY from Microchip Technology is a non-synchronous, fixed-frequency PWM boost DC-DC converter with an integrated 36V/400 mΩ NMOS switch, 1.227V feedback reference, and 500 kHz switching frequency. It operates from 2.4V–5.5V input to deliver up to 32V output, supports 1.8A peak inductor current limiting, and achieves up to 92% efficiency in portable Li-Ion to 12V/24V conversion.
For engineers reviewing the MCP1663T-E/MNY datasheet, MCP1663T-E/MNY pinout, MCP1663T-E/MNY application, or MCP1663T-E/MNY equivalent, this page provides verified technical context for battery-powered high-voltage step-up design-covering UVLO thresholds (2.3V rising / 1.85V falling), shutdown quiescent current (300 nA), OVP protection, and topology flexibility (boost/SEPIC/flyback).
Technical Context
The MCP1663T-E/MNY uses peak current-mode control with internal slope compensation derived from VIN, enabling stable operation across input voltage variations. Its 1.227V feedback reference and transconductance error amplifier support adjustable output via external resistor divider without affecting loop stability.
It integrates cycle-by-cycle overcurrent protection (1.8A peak limit), thermal shutdown (150°C trip, 15°C hysteresis), and output overvoltage protection triggered by VFB < 80 mV-activated only after startup and thermal events. The device enters sleep mode at EN = GND, drawing just 300 nA typical input current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V to 5.5V - supports single-cell Li-Ion (3.0–4.2V) and multi-cell alkaline/Li primary sources without external LDO pre-regulation. |
| Output Voltage Range | Up to 32V - configurable via resistor divider; enables LCD bias, camera flash, and medical sensor bias rails from low-voltage batteries. |
| Switch Rating | 36V breakdown, 400 mΩ RDS(ON) - handles 12V/200 mA or 24V/150 mA loads directly without external MOSFET. |
| UVLO Thresholds | 2.3V (rising), 1.85V (falling) - prevents erratic startup from weak two-cell alkaline/NiMH batteries and avoids brownout oscillation. |
| Shutdown Quiescent Current | 300 nA typical - ensures ultra-low standby drain in battery-critical applications like handheld instruments and portable medical devices. |
| Switching Frequency | 500 kHz ±15% - balances EMI control and inductor size; supports compact 4.7 µH (12V) or 10 µH (24V) designs. |
| Feedback Reference | 1.227V ±3% - enables precise output regulation; tolerance directly impacts VOUT accuracy when using standard resistors. |
Pinout & Package
Package: 8-Lead 2x3 mm TDFN with exposed thermal pad (EP). Thermal resistance θJA = 52.5°C/W enables high-power density operation in space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VFB | Feedback voltage input | Connects to resistor divider midpoint; 1.227V reference sets output voltage; OVP triggers if pulled below 80 mV. |
| 2 - SGND | Signal ground reference | Return for internal bandgap and error amplifier; must be connected to PGND at single point to avoid noise coupling. |
| 3 - SW | Switch node | Drain of internal NMOS; carries full inductor current (1.8A peak); requires short, low-inductance routing to minimize ringing. |
| 4,6 - NC | No connection | Unbonded pins; must remain unconnected and not tied to any net including ground or power. |
| 5 - VIN | Input supply | Accepts 2.4–5.5V; requires ≥4.7 µF ceramic decoupling close to pin; powers internal bias circuitry. |
| 7 - PGND | Power ground return | High-current return path for NMOS source; separate from SGND but joined externally at one point near input capacitor. |
| 8 - EN | Enable control input | Logic-level active-high; enables switching when >85% of VIN, disables with <7.5% of VIN; pulls device into 300 nA shutdown. |
| 9 - EP | Exposed thermal pad | Electrically isolated from SGND/PGND; must be soldered to large copper pour for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 36V/400 mΩ NMOS switch | Eliminates external high-voltage MOSFET; reduces BOM count and layout area for 12V/24V boost converters. |
| Internal compensation network | Removes need for external RC compensation components; simplifies design while maintaining stability across load/input ranges. |
| Output overvoltage protection (OVP) | Shuts down PWM if VFB drops below 80 mV-prevents destructive output overshoot during feedback divider disconnection or short-to-ground. |
| Inrush current limiting & soft-start | 3 ms typical soft-start time limits peak inductor current during startup; prevents battery stress and output overshoot in high-ratio boosts. |
| Topology flexibility (boost/SEPIC/flyback) | Single IC supports three topologies via external component reconfiguration-ideal for prototyping and multi-platform power supply reuse. |
Applications
| Portable Medical Sensors | Camera Phone Flash Driver |
|---|---|
Use Scenario: Powering high-voltage bias for photodiode amplifiers or piezoelectric sensors in handheld ultrasound or glucose monitors. IC Role / Device Role / Timing Role: Non-synchronous boost regulator generating stable 24V from single Li-Ion cell; manages transient load steps during sensor activation. Use Value: 150 mA output capability at 4.2VIN/24VOUT and 300 nA shutdown current extend battery life between clinical measurements. |
Use Scenario: Driving white LED flash in smartphone front/rear cameras requiring 12–20V pulses with fast turn-on. IC Role / Device Role / Timing Role: Fixed-frequency PWM boost controller delivering regulated 12V output; enables precise current control via external LED driver IC. Use Value: 500 kHz switching allows small 4.7 µH inductors and tight ripple control (<50 mVPP) critical for consistent flash intensity. |
| LCD Bias Supply | Hand-Held Instrument Power |
Use Scenario: Generating dual-polarity or high-voltage bias rails (e.g., +15V/–10V) for segment LCDs in portable test meters and barcode scanners. IC Role / Device Role / Timing Role: Configured as flyback converter to isolate and step up from 3.3V system rail; provides clean, low-noise HV output. Use Value: Internal OVP and thermal shutdown prevent display damage during feedback fault or ambient temperature rise above 85°C. |
Use Scenario: Powering mixed-signal circuits (ADC, MCU, op-amps) in portable oscilloscopes and multimeters operating from 2×AA alkaline cells. IC Role / Device Role / Timing Role: Step-up regulator converting 2.4–3.2V battery range to stable 5.0V system rail; maintains regulation down to 1.85V input. Use Value: UVLO hysteresis (2.3V/1.85V) avoids cycling during battery sag under load, ensuring uninterrupted measurement capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRBT | Higher 28V switch rating, 0.55Ω RDS(ON), 1.25V feedback reference; no OVP or thermal shutdown. | Lacks integrated OVP and thermal protection; requires external fault management for safety-critical medical or industrial use. | Select when cost sensitivity outweighs protection requirements and output ≤24V; verify external OVP implementation. |
| LT3467EDD#TRPBF | 36V switch, 0.45Ω RDS(ON), 1.25V reference, 1.3A peak current limit; includes soft-start but no OVP. | Missing VFB-based OVP; relies on external monitoring for feedback fault detection-increases BOM and layout complexity. | Prefer for higher efficiency at light loads due to lower quiescent current (25 µA vs. 250 µA), but add discrete OVP if required. |
Compared with TPS61040DRBT and LT3467EDD#TRPBF, the MCP1663T-E/MNY delivers superior system-level robustness through integrated OVP, thermal shutdown, and precise 1.227V reference-reducing validation effort and field failure risk in battery-powered portable equipment.
Availability
MCP1663T-E/MNY is available at Aetrix Electronics and suitable for portable medical sensors, camera flash drivers, LCD bias supplies, and hand-held instrument power requiring stable component supply across extended production lifecycles.
Supply support for MCP1663T-E/MNY 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
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog, interface, and power management ICs for embedded control applications.
The MCP1663 product line delivers compact, high-efficiency boost regulators optimized for battery-powered portable electronics-designed to replace discrete boost solutions with integrated protection, low quiescent current, and topology flexibility.
FAQ
What is the maximum output voltage supported by the MCP1663T-E/MNY?
The MCP1663T-E/MNY supports an output voltage range up to 32V, set by an external resistor divider connected to the VFB pin. This is enabled by its 36V-rated internal NMOS switch and internal overvoltage protection that activates if VFB falls below 80 mV-ensuring safe operation even during feedback faults. Output voltage accuracy depends on resistor tolerance and VFB reference (1.227V ±3%).
How does the MCP1663T-E/MNY handle undervoltage conditions?
The MCP1663T-E/MNY implements undervoltage lockout (UVLO) with asymmetric thresholds: it starts switching when VIN rises above 2.3V (typical) and stops when VIN falls below 1.85V (typical). This hysteresis prevents oscillation during battery sag. Below UVLO stop, the output remains at VIN minus diode forward drop-no active regulation, but no damage occurs.
Can the MCP1663T-E/MNY be used in SEPIC or flyback configurations?
Yes, the MCP1663T-E/MNY is explicitly designed for topology flexibility: it supports classic boost, SEPIC, and flyback configurations via external component selection. Its peak current-mode architecture, internal compensation, and 36V switch rating make it suitable for isolated or non-isolated high-voltage step-up-verified in Microchip's application notes DS20005406A Figures 5-1 and 5-2.
What is the shutdown current of the MCP1663T-E/MNY and how is it achieved?
The MCP1663T-E/MNY draws just 300 nA typical shutdown current when EN is pulled to GND. This is achieved by disabling all internal bias circuitry-including oscillator, error amplifier, and gate driver-while maintaining isolation of the feedback divider current path. The specification excludes feedback resistor current, so actual system shutdown current depends on RTOP/RBOT values.
Does the MCP1663T-E/MNY include overvoltage protection, and how does it work?
Yes, the MCP1663T-E/MNY includes output overvoltage protection (OVP) that disables PWM switching if the VFB pin voltage drops below 80 mV-indicating feedback disconnection or short-to-GND. This prevents uncontrolled duty cycle and destructive output overshoot. OVP is disabled during startup and thermal shutdown to avoid false triggering.
MCP1663T-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- 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):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.4V
- Voltage - Output (Max):
- 32V
- Current - Output:
- 375mA
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
MCP1663T-E/MNY FAQ
1.How can I place an order for MCP1663T-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP1663T-E/MNY 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 MCP1663T-E/MNY reliable?
The price and inventory of MCP1663T-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP1663T-E/MNY is usually 5 days.
3.What payment methods are accepted for MCP1663T-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP1663T-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP1663T-E/MNY?
MCP1663T-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP1663T-E/MNY 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 MCP1663T-E/MNY?
For technical support, including MCP1663T-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP1663T-E/MNY requirements.
6.How does Aetrix verify that MCP1663T-E/MNY is sourced from the original manufacturer or authorized distributors?
All MCP1663T-E/MNY 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 MCP1663T-E/MNY meets industry standards.
7.What is the process for return or replacement of MCP1663T-E/MNY?
All MCP1663T-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with MCP1663T-E/MNY, 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 MCP1663T-E/MNY part is unused and in its original packaging.
Return procedure for MCP1663T-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP1663T-E/MNY 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…
