DSPIC30F2020-30I/MMB32 - 16-bit 30MIPS SMPS DSC, 28-QFN | Microchip
MPN: DSPIC30F2020-30I/MMB32 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.1 | $6.10 |
| 10 | $5.48 | $54.80 |
| 100 | $4.86 | $486.00 |
| 500 | $4.32 | $2,160.00 |
| 1,000 | $3.78 | $3,780.00 |
DSPIC30F2020-30I/MMB32 Overview
A Digital Signal Controller (DSC) is a hybrid between a microcontroller (MCU) and a digital signal processor (DSP). DSCs integrate MCU peripherals (timers, GPIO, communication ports) with DSP-grade computational throughput for high-speed, closed-loop control. Within the Microchip taxonomy, the dsPIC30F SMPS family targets digital power conversion, sitting under DSCs -> 16-bit DSC -> dsPIC30F family. The DSPIC30F2020 is the 28-pin member optimized for compact, single- or multi-loop SMPS designs where PCB area and component count are constrained.
Key differentiating features include up to 4 PWM channels with up to 8 outputs (complementary mode), 1 Msps 10-bit ADC with dual sample-and-hold, four analog comparators with 6-bit DAC references, and dedicated analog slope compensation for peak current-mode control. The device integrates Cycle-by-Cycle current limiting and supports leading-edge blanking to suppress switching-noise-induced MOSFET false triggering. A Hardware Fault Input with FLTA/FLTB pins enables sub-microsecond PWM shutdown on overcurrent events.
Architecturally, the DSPIC30F2020 uses a 16-bit modified Harvard core with separate program and data buses plus a 40-bit barrel shifter. The SMPS-targeted analog front-end includes a dedicated 1 Msps ADC with simultaneous sampling of two channels and high-speed comparators trimmed for sub-50 ns response, supporting multi-MHz switching frequencies and tight regulation bandwidths. The device operates from 3.0 V to 5.5 V and is rated for the industrial temperature range (-40 °C to +85 °C).
Typical applications include single-stage and two-stage AC/DC converters, isolated DC/DC brick modules, power-factor correction (PFC) boost stages, uninterruptible power supplies, and digital LED drivers. The 28-QFN package suits high-density designs where the 44-pin variants are not needed and where routing density is a primary constraint.
Design consideration: When designing with this DSC, route the analog and digital ground planes separately and join them under the IC exposed pad to avoid switching noise coupling into ADC and comparator inputs. The on-chip slope-compensation DAC eliminates one external analog block; use it for peak current-mode control loops above 50% duty cycle to prevent subharmonic oscillation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, including cross-package alternatives and parametric comparison data sourced from manufacturer specifications and authorized distributor listings.
Drop-in alternatives for DSPIC30F2020-30I/MMB32 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC30F2020-30I/MMB32 (same form factor and footprint) — differing in Core Architecture, ADC, Package, Data RAM, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2020-30I/MM
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC30F2010-30I/MM
✅ Drop-In✓ In Stock
$6.86 / Unit
View Datasheet →DSPIC30F2011-30I/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F1010-30I/MM
✅ Drop-In✓ In Stock
$3.25 / Unit
View Datasheet →DSPIC30F2020-30I/MMB32 Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F 16-bit DSC (modified Harvard + DSP engine) |
| CPU Speed | 30 MIPS |
| Program Memory (Flash) | 12 KB (4K x 24) |
| Data RAM | 512 bytes |
| ADC | 10-bit, up to 1 Msps, up to 9 channels with dual sample-and-hold |
| PWM Channels | Up to 4 PWM generators, up to 8 outputs (complementary mode) |
| Analog Comparators | 4 comparators with 6-bit DAC references |
| Supply Voltage (Vdd) | 3.0 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C (Industrial, I-grade) |
| Package | 28-QFN-S (6 x 6 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS3 Compliant |
| Fault Inputs | FLTA / FLTB (hardware PWM shutdown) |
| IC Package Type | 28-pin QFN-S (MMB32) |
DSPIC30F2020-30I/MMB32 28-pin qfn-s (mmb32) Pin Configuration Guide
Pin configuration for DSPIC30F2020-30I/MMB32 (28-pin qfn-s (mmb32) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC30F2020-30I/MMB32.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC30F2020-30I/MMB32 is suitable for 6 applications: Single-Stage Power-Factor Correction (PFC), Isolated DC/DC Brick Modules, Digital LED Drivers, Uninterruptible Power Supplies (UPS), AC/DC Adapters with Active PFC, Solar Micro-Inverters and Optimizers.
Single-Stage Power-Factor Correction (PFC)
The DSPIC30F2020-30I/MMB32 is a strong fit for single-stage boost PFC stages because of its 1 Msps ADC with dual sample-and-hold, which enables simultaneous measurement of input voltage and inductor current - the two signals required for average-current-mode control. Its 30 MIPS core sustains the digital control loop at typical 50-100 kHz PFC switching frequencies while the four analog comparators with 6-bit DAC references deliver hardware-cycle-by-cycle current limiting with no firmware latency. Hardware FLTA/FLTB inputs shut down the PWM outputs within nanoseconds on overcurrent, protecting the boost switch. Compared with using a general-purpose MCU + external analog front-end, the integrated peripherals eliminate one or two external op-amps and a current-sense comparator, reducing both BOM cost and board area in the 28-QFN-S footprint.
Recommended
Isolated DC/DC Brick Modules
For telecom and server 48 V brick converters, the DSPIC30F2020-30I/MMB32 delivers the digital control bandwidth and peripheral integration needed to implement peak current-mode control with active clamp reset, digital slope compensation, and primary-side regulation. Its 40-bit accumulator and hardware 16x16 multiplier execute PID + feed-forward + slope-compensation math in under 1 µs per switching cycle, well within the budget for typical 250 kHz brick designs. The on-chip 4-channel PWM with programmable dead time supports full-bridge and active-clamp topologies without external gate-driver timing logic. Compared with analog UC3842-style control, the DSPIC30F2020 enables programmable soft-start, adaptive dead-time, and telemetry over UART without extra components.
Recommended
Digital LED Drivers
The DSPIC30F2020-30I/MMB32 is well-matched to digitally controlled high-brightness LED drivers requiring constant-current regulation with analog dimming. Its 1 Msps ADC samples the high-side current-sense amplifier at the PWM switching node, while the 4-channel PWM generator drives the buck/boost/SEPIC power stage at high frequency with tight duty-cycle resolution (TCY = 33 ns). The 30 MIPS throughput runs digital PI control plus thermal-foldback algorithms without taxing CPU budget. In contrast to analog LED-driver ICs, the DSPIC30F2020 enables per-channel current calibration, programmable thermal derating curves, and DMX/RDM-style communication stacks in firmware.
Recommended
Uninterruptible Power Supplies (UPS)
Low-power line-interactive and online UPS designs benefit from the DSPIC30F2020-30I/MMB32's combination of fast ADC, hardware comparators for battery monitoring, and PWM generators for inverter control. The device can simultaneously execute inverter sinusoidal PWM at 20 kHz, sample battery voltage and current, monitor AC-mains zero-crossing, and run state-machine logic for line/battery transfer. The 12 KB Flash accommodates inverter control plus charger control plus a basic communication stack (Modbus/UART). Hardware fault inputs ensure sub-microsecond shutdown on short-circuit or battery overcurrent conditions.
Recommended
AC/DC Adapters with Active PFC
For notebook and consumer AC/DC adapters in the 65-150 W range, the DSPIC30F2020-30I/MMB32 supports combined PFC + LLC or PFC + flyback digital control in a single 28-QFN-S device, replacing the conventional PFC controller IC + LLC controller IC pair. The device's 4 analog comparators monitor cycle-by-cycle currents, while the 1 Msps ADC samples bulk-capacitor voltage for output regulation. Reduced BOM count (one DSC replaces two analog controllers) saves PCB area and enables programmable features like adaptive dead-time and dynamic-voltage-scaling.
Recommended
Solar Micro-Inverters and Optimizers
Sub-300 W solar micro-inverters and module-level power electronics (MLPE) optimizers benefit from the DSPIC30F2020-30I/MMB32's mixed-signal peripheral set: the ADC performs MPPT voltage/current sampling, while the PWM channels drive the high-frequency DC/DC or DC/AC conversion stage. The 30 MIPS DSP engine computes perturb-and-observe or incremental-conductance MPPT plus inverter control in real time. The 28-QFN-S industrial-temperature rating supports outdoor power-electronics enclosures. The 3.0-5.5 V supply range allows direct operation from auxiliary rails without additional LDO stages.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2020-30I/MMB32 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2020-30I/MM | DSPIC30F2010-30I/MM | DSPIC30F2011-30I/MM | DSPIC30F1010-30I/MM |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Core / Architecture | dsPIC30F 16-bit DSC, 30 MIPS | dsPIC30F 16-bit DSC, 30 MIPS | dsPIC30F 16-bit DSC, 30 MIPS | dsPIC30F 16-bit DSC, 30 MIPS | dsPIC30F 16-bit DSC, 30 MIPS |
| ADC | 10-bit, 1 Msps, 9 ch, dual S&H | 10-bit, 1 Msps, 9 ch, dual S&H | 10-bit, 1 Msps, 8 ch, dual S&H | 10-bit, 1 Msps, 9 ch, dual S&H | 10-bit, 1 Msps, 6 ch, dual S&H |
| PWM Channels / Outputs | 4 ch / 8 outputs | 4 ch / 8 outputs | 4 ch / 6 outputs | 4 ch / 8 outputs | 2 ch / 4 outputs |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Temperature Grade | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Key Differentiators
- Smallest-footprint dsPIC30F SMPS DSC with full SMPS peripheral set (vs DSPIC30F2023 (44-pin variants))
- Hardware fault inputs vs general-purpose DSC (vs dsPIC33FJ64GP204 (general-purpose 44-QFN DSC))
- On-chip SMPS peripherals eliminate external analog blocks (vs DSPIC30F1010-30I/MM (entry-level 28-QFN-S DSC))
Design Notes
Route analog and digital ground planes as separate regions and join them under the IC exposed pad to prevent switching-noise coupling into the ADC and analog comparator inputs. Place the 0.1 µF Vdd bypass ceramic capacitor within 3 mm of each Vdd pin and use a single 10 µF bulk decoupling capacitor at the PCB supply entry. The 28-QFN-S exposed pad must be soldered to a properly sized thermal land for electrical grounding and thermal dissipation.
Keep current-sense traces (analog comparator inputs and ADC channels used for current sensing) as short as possible and route them away from the PWM gate-drive traces. Add a small RC filter (typ. 100 Ω + 1 nF) on current-sense inputs to attenuate leading-edge switching spikes without distorting the average current waveform. The FLTA and FLTB hardware fault traces must be impedance-controlled and pulled high with a 10 kΩ resistor to ensure sub-microsecond PWM shutdown on faults.
When using peak current-mode control above 50% duty cycle, slope compensation is required to prevent subharmonic oscillation - enable the on-chip 6-bit DAC slope-compensation feature rather than implementing it in software. The PWM fault inputs (FLTA/FLTB) are active-low and must be properly pulled up to avoid false triggering during board power-up. Do not exceed 5.5 V on any Vdd pin, as the device is not 5 V-tolerant beyond the specified range.
Compliance Information
RoHS3 Compliant per Microchip product page. Industrial temperature grade -40 °C to +85 °C. AEC-Q100 qualification not applicable for this industrial-grade part; consult Microchip for automotive-grade SMPS DSCs.
