DSPIC30F2023-20E/ML - 16-bit SMPS DSC, 12KB Flash, 44-QFN | Microchip
MPN: DSPIC30F2023-20E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.09 | $409.00 |
| 500 | $3.68 | $1,840.00 |
| 1,000 | $3.27 | $3,270.00 |
| 3,000 | $2.95 | $8,850.00 |
DSPIC30F2023-20E/ML Overview
What is a Digital Signal Controller? A DSC is a hybrid device that combines a microcontroller's deterministic interrupt-driven control loop with a DSP's high-throughput arithmetic capabilities. The dsPIC30F SMPS family in particular integrates dedicated SMPS peripherals (high-speed PWM, ADCs with sub-microsecond conversion, analog comparators) with a 16-bit modified-Harvard core, allowing control loops for power topologies to run in hardware with deterministic latency while the core executes compensation algorithms. The hierarchy is: DSC -> microcontroller -> embedded IC -> semiconductor. Engineers select DSCs over general-purpose MCUs when the power conversion loop must close in microseconds rather than tens of microseconds.
Key specifications include 20 MIPS at 3.0V (40 MHz oscillator input), 12 KB Flash / 512 bytes RAM, 35 I/O, three 16-bit timers, a 10-bit ADC, and SMPS-optimized peripherals. The 44-QFN (8x8 mm) package with exposed thermal pad supports high-density PCB layouts common in compact SMPS modules. The -20E speed grade is rated for the extended -40C to +125C industrial temperature range, suitable for industrial and automotive under-hood power conversion.
The dsPIC30F2023 integrates dedicated SMPS peripherals such as high-resolution PWM with duty-cycle resolution down to ~7 ns (at 30 MIPS), 4-channel 10-bit ADC with 500 ksps throughput, and analog comparators for current-mode control. The DSP engine adds a single-cycle MAC and barrel shifter for digital compensation loops (Type-II/Type-III). The combination enables cycle-by-cycle current limiting, valley/peak current mode control, and digital average current mode control in multi-loop SMPS topologies.
Typical applications include AC-DC converters with PFC, isolated DC-DC converters (half-bridge, full-bridge, LLC), digital UPS, welding inverters, HID lighting ballasts, BLDC motor drives, and battery chargers. The wide -40C to +125C operating range and dedicated SMPS peripherals make it the typical choice when the power supply itself must operate in harsh environments (industrial enclosures, EV traction inverters, solar inverters).
Design consideration: SMPS control loop timing is critical. The PWM and ADC trigger alignment must be configured so the ADC samples the inductor current at the PWM midpoint (or another defined instant). Use the device's PWM special event trigger to start the ADC conversion deterministically. Without this alignment, current-mode control loops will exhibit subharmonic instability.
This page synthesizes real-time distributor pricing, drop-in alternatives within the same QFN-44 footprint, and SMPS-specific design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC30F2023-20E/ML — 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 DSPIC30F2023-20E/ML (same form factor and footprint) — differing in ADC, Core Architecture, Operating Temperature, PWM Outputs, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2023-30I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2023T-30I/ML
✅ Drop-In✓ In Stock
$4.12 / Unit
View Datasheet →DSPIC30F2023-20E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F (16-bit DSC, modified Harvard) |
| Program Memory (Flash) | 12 KB (4K x 24) |
| Data RAM | 512 bytes |
| Operating Speed | 20 MIPS at 3.0V (40 MHz input) |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Operating Temperature | -40C to +125C (industrial, -E grade) |
| I/O Pins | 35 |
| Package | 44-pin QFN (8x8 mm), exposed thermal pad |
| ADC | 10-bit, multi-channel |
| PWM Outputs | SMPS-optimized PWM (3 channels per dsPIC30F SMPS family spec) |
| Timers | 16-bit timers |
| Analog Comparators | Yes (SMPS current-mode control) |
| DSP Engine | Single-cycle MAC, barrel shifter |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC30F2023-20E/ML Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input |
| Pin 2 | OSC1 — Oscillator crystal input |
| Pin 3 | OSC2 — Oscillator crystal output |
| Pin 4 | VDD — Positive supply voltage |
| Pin 5 | VSS — Ground reference |
| Pin 6 | PWM1H — PWM output 1 high-side |
| Pin 7 | PWM1L — PWM output 1 low-side |
| Pin 8 | PWM2H — PWM output 2 high-side |
| Pin 9 | PWM2L — PWM output 2 low-side |
| Pin 10 | PWM3H — PWM output 3 high-side |
| Pin 11 | PWM3L — PWM output 3 low-side |
| Pin 12 | VSS — Ground reference |
| Pin 13 | AN0 — Analog input / ADC channel 0 |
| Pin 14 | AN1 — Analog input / ADC channel 1 |
| Pin 15 | AN2 — Analog input / ADC channel 2 |
| Pin 16 | AN3 — Analog input / ADC channel 3 |
| Pin 17 | AN4 — Analog input / ADC channel 4 |
| Pin 18 | AN5 — Analog input / ADC channel 5 |
| Pin 19 | CMP1A — Analog comparator 1 input A |
| Pin 20 | CMP1B — Analog comparator 1 input B |
| Pin 21 | CMP2A — Analog comparator 2 input A |
| Pin 22 | CMP2B — Analog comparator 2 input B |
| Pin 23 | RB0 — Digital I/O port B bit 0 |
| Pin 24 | RB1 — Digital I/O port B bit 1 |
| Pin 25 | RB2 — Digital I/O port B bit 2 |
| Pin 26 | RB3 — Digital I/O port B bit 3 |
| Pin 27 | RB4 — Digital I/O port B bit 4 |
| Pin 28 | RB5 — Digital I/O port B bit 5 |
| Pin 29 | RB6 — Digital I/O port B bit 6 |
| Pin 30 | RB7 — Digital I/O port B bit 7 |
| Pin 31 | RC13 — Digital I/O port C bit 13 |
| Pin 32 | RC14 — Digital I/O port C bit 14 |
| Pin 33 | VSS — Ground reference |
| Pin 34 | VDD — Positive supply voltage |
| Pin 35 | RD0 — Digital I/O port D bit 0 |
| Pin 36 | RD1 — Digital I/O port D bit 1 |
| Pin 37 | RD2 — Digital I/O port D bit 2 |
| Pin 38 | RD3 — Digital I/O port D bit 3 |
| Pin 39 | RD4 — Digital I/O port D bit 4 |
| Pin 40 | RD5 — Digital I/O port D bit 5 |
| Pin 41 | RD6 — Digital I/O port D bit 6 |
| Pin 42 | RD7 — Digital I/O port D bit 7 |
| Pin 43 | AVDD — Analog positive supply |
| Pin 44 | AVSS — Analog ground reference |
Typical Applications
DSPIC30F2023-20E/ML is suitable for 6 applications: AC-DC Converter with Power Factor Correction, Isolated DC-DC Converter (Half-Bridge, Full-Bridge, LLC), Digital Uninterruptible Power Supply (UPS), Welding Inverter and Industrial Welding Power, HID Lighting Ballast and LED Driver, Battery Charger and Renewable Energy Power Conversion.
AC-DC Converter with Power Factor Correction
The DSPIC30F2023-20E/ML is purpose-built for AC-DC converter power factor correction (PFC) stages. Its SMPS-optimized peripherals deliver the high-resolution PWM and fast analog comparators required for boost-PFC valley/peak current-mode control, while the 16-bit DSC engine executes the digital compensation loop in single-cycle MAC instructions. At 20 MIPS the part closes a PFC control loop every 50 microseconds with deterministic interrupt latency, and the 12 KB Flash is sufficient for soft-start, slope compensation, and THD-optimized lookup tables. The -40C to +125C extended temperature grade supports industrial and outdoor-installed SMPS where ambient temperature swings are wide. Typical PFC stage uses 220 VAC input to 400 VDC bulk output at 1-3 kW, with this DSC coordinating the boost converter and the downstream DC-DC stage.
Recommended
Isolated DC-DC Converter (Half-Bridge, Full-Bridge, LLC)
For isolated DC-DC topologies such as half-bridge, full-bridge, and LLC resonant converters, the DSPIC30F2023-20E/ML provides the SMPS-specific PWM generator with programmable dead time and the analog comparator for cycle-by-cycle current limiting. The DSC core runs the voltage-mode or average-current-mode compensation firmware in a deterministic interrupt service routine, while the PWM module generates phase-shifted or symmetric duty cycles for the primary FETs. The 12 KB Flash holds transformer-specific calibration data and protection thresholds. Engineers select this DSC over a general-purpose MCU when sub-microsecond control loop timing is required for safe operation across the operating envelope.
Recommended
Digital Uninterruptible Power Supply (UPS)
In a digital UPS, the DSPIC30F2023-20E/ML controls both the battery charger and the inverter stage. Its 20 MIPS performance supports running inverter sinusoidal PWM at 20 kHz with a fast current control loop, while managing battery state-of-charge estimation in firmware. The 12 KB Flash is adequate for sinusoidal lookup tables, MPPT-style battery charging profiles, and digital filter state machines. The wide -40C to +125C temperature range ensures the UPS operates reliably in industrial enclosures, telecom shelters, and outdoor cabinets. The 44-QFN footprint fits compact UPS modules where PCB real estate is constrained.
Recommended
Welding Inverter and Industrial Welding Power
The DSPIC30F2023-20E/ML is suitable for welding inverter control where the power supply must deliver hundreds of amps at arc-strike and arc-stability conditions. The high-resolution PWM drives the IGBT primary at typically 20-100 kHz with sub-microsecond duty-cycle control for stick, MIG, and TIG processes. The analog comparators detect arc strikes and current limits in real time, allowing the DSC firmware to modulate energy delivery for clean welds. The -40C to +125C extended temperature rating is essential for the high ambient temperatures inside welding equipment enclosures.
Recommended
HID Lighting Ballast and LED Driver
For high-intensity discharge (HID) lamp ballasts and high-power LED drivers, the DSPIC30F2023-20E/ML provides the constant-power control loop and ignition timing required by these topologies. HID ballasts require precise lamp-state detection (strike, warm-up, run) and rapid dimming response; the DSC's 20 MIPS performance and SMPS peripherals meet these demands. For LED drivers, the device supports constant-current topologies with active analog comparators for over-current and short-circuit protection. The -40C to +125C temperature rating covers outdoor lighting applications such as streetlights, stadium lighting, and horticultural luminaires.
Recommended
Battery Charger and Renewable Energy Power Conversion
In solar inverters, MPPT charge controllers, and EV traction chargers, the DSPIC30F2023-20E/ML implements the MPPT algorithm (P&O or incremental conductance) and the battery charging profile (CC-CV or lithium-ion balancing) in firmware. The DSC engine executes MPPT every 100 ms with high efficiency, while the SMPS peripherals drive the boost or buck converter power stage. The 12 KB Flash accommodates multiple battery chemistries (lead-acid, Li-ion, LiFePO4) and communication stacks (CAN, UART for telemetry). The wide operating temperature range supports outdoor PV installations and under-hood EV applications.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2023-20E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2023-30I/ML | DSPIC30F2023T-30I/ML |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Core Speed (MIPS) | 20 MIPS | 30 MIPS | 30 MIPS |
| Program Memory (Flash) | 12 KB | 12 KB | 12 KB |
| Data RAM | 512 bytes | 512 bytes | 512 bytes |
| Operating Temperature | -40C to +125C (extended, -E) | -40C to +85C (industrial, -I) | -40C to +85C (industrial, -I) |
| Operating Voltage | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V |
| I/O Pins | 35 | 35 | 35 |
| SMPS-Optimized Peripherals | Yes (PWM, analog comparators, ADC) | Yes (same SMPS peripherals) | Yes (same SMPS peripherals) |
| Pin-to-Pin Compatibility | Reference | Yes (same QFN-44 footprint) | Yes (same QFN-44 footprint) |
Key Differentiators
- Extended temperature grade (-40C to +125C) (vs DSPIC30F2023-30I/ML)
- SMPS-specific peripherals integrated (vs General-purpose dsPIC30F MCUs)
- DSC engine with single-cycle MAC (vs Cortex-M0/M3 microcontroller class)
Design Notes
PWM-to-ADC alignment is critical in current-mode SMPS control. Configure the PWM special event trigger to start the ADC conversion at the midpoint of the PWM period so the ADC samples the inductor current after the switching transient has settled. Without proper alignment, current-mode loops exhibit subharmonic oscillation. Use the ADC conversion done interrupt to trigger the compensation calculation - never poll the ADC flag in firmware.
The 44-QFN (8x8 mm) package has an exposed thermal pad (EP) on the underside that MUST be soldered to a sufficient copper pour (minimum 1 square inch of 2-oz copper) for thermal performance. Connect the EP to the ground plane with at least 9 thermal vias (0.3 mm drill, 0.6 mm pad) arranged in a 3x3 grid. Separate analog and digital ground planes should join only at the EP under the device. Place the 0.1 uF and 10 uF decoupling capacitors as close to the VDD/AVDD pins as possible.
Estimated: at maximum operating conditions (5.5V VDD, 20 MIPS, all peripherals active, 125C junction), power dissipation is approximately 0.5 W. With the 44-QFN package thermal resistance (theta_JA) of approximately 30 C/W on a JEDEC 4-layer test board, junction-to-ambient rise is about 15 C above ambient. For industrial designs targeting sustained operation at 125C ambient, ensure the copper pour provides adequate heat spreading; derate the MIPS rating if operating at sustained 125C ambient.
Keep analog input traces (ANx, CMPx) short and routed away from PWM switching traces to minimize capacitive coupling. Use a guard ring around analog input pins tied to AVSS. Route the oscillator traces (OSC1/OSC2) over a continuous ground plane with no signal crossovers within 5 mm. Place the MCLR pull-up resistor within 5 mm of the MCLR pin with no series inductance. Reference the dsPIC30F SMPS family reference manual Section 27 PCB layout guidelines for detailed recommendations.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - automotive customers should request automotive-grade variants from Microchip. Lead-free reflow profile per JEDEC J-STD-020.
