MCP1632-BAE/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP1632-BAE/MS is a 600 kHz PWM switching controller with combined current and voltage-mode control, adjustable soft start, and 3V to 5.5V input voltage range. It is housed in a compact 8-pin MSOP package for space-constrained DC-DC converter designs. Ideal for LED drivers, battery chargers, and low-voltage boost or buck converter applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP1632-BAE/MS Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 600 kHz fixed-frequency PWM operation reducing external component size in compact DC-DC converter designs
- Combined current-mode and voltage-mode control for flexible loop compensation and improved transient response
- Adjustable soft-start function preventing inrush current during power-up in sensitive load applications
- 3V to 5.5V input voltage range supporting single-cell Li-Ion, USB, and 5V regulated bus operation
- 8-pin MSOP package enabling high-density PCB layouts for portable chargers and LED driver modules
Applications
The MCP1632-BAE/MS is suited for LED backlighting drivers, lithium battery chargers, and low-power boost converters in handheld devices, portable instruments, and IoT nodes operating from 3V to 5.5V input rails. Its 600 kHz switching frequency reduces inductor and capacitor values, minimizing solution size in wearable electronics and compact power modules. The adjustable soft-start and current-mode control simplify design of chargers with controlled charging profiles and overcurrent protection.
Specifications
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 14 |
| Additional Feature | ADJUSTABLE SOFT START |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT/VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 690kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What switching frequency does the MCP1632-BAE/MS operate at and how does this reduce external component size?
The MCP1632-BAE/MS operates at a fixed 600 kHz PWM frequency, allowing the use of inductors as small as 4.7 µH and ceramic capacitors below 10 µF for output filtering. These small component values reduce PCB area and cost compared to 100 kHz to 200 kHz controllers, enabling compact single-layer board designs in space-constrained LED drivers and portable chargers.
How does the adjustable soft-start in the MCP1632-BAE/MS protect sensitive loads during power-up?
The MCP1632-BAE/MS soft-start ramps the duty cycle from 0% to its operating value over a programmable time set by an external capacitor, typically 1 ms to 10 ms. This controlled ramp limits inrush current to the output capacitor and connected load, preventing voltage overshoot and protecting sensitive LEDs, RF modules, and microcontrollers during converter startup from 3V to 5.5V input.
What control mode does the MCP1632-BAE/MS use and how does current-mode operation simplify overcurrent protection?
The MCP1632-BAE/MS uses combined current-mode and voltage-mode PWM control, sensing peak inductor current on a cycle-by-cycle basis. Current-mode operation inherently limits peak current to a programmable threshold set by an external resistor, providing automatic overcurrent protection without additional circuitry in battery charger and LED driver designs requiring short-circuit tolerance.
In which package does the MCP1632-BAE/MS come and how does this benefit space-constrained designs?
The MCP1632-BAE/MS is packaged in an 8-pin MSOP measuring approximately 3 mm x 3 mm, roughly 50% smaller than an equivalent 8-pin SOIC footprint. This miniature package allows placement adjacent to 4.7 µH inductors and 10 µF ceramic capacitors on dense multi-layer PCBs in wearable devices, handheld meters, and IoT modules where every square millimeter of board space is critical.
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