UCC39422PWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC39422PWG4 is a configurable peak current-mode PWM controller supporting voltage-mode control with programmable PFM technique, operating from 1.8 V to 8 V input. It features a 20-pin TSSOP package, internal soft-start, and programmable oscillator frequency up to several hundred kHz for compact DC-DC converter designs. Available from stock worldwide with fast international shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- UCC39422PWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of UCC39422PWG4?
- Configurable peak current-mode control with programmable PFM technique for optimized light-load efficiency
- Wide input voltage range of 1.8 V to 8 V nominal 3 V supports portable and battery-powered converter designs
- 20-pin TSSOP package with full protection features including programmable soft-start and current limiting
- Dual operating modes (PWM and PFM) allow designers to trade off switching frequency against efficiency at varying load levels
What is UCC39422PWG4 used for?
UCC39422PWG4 is designed for use in non-isolated and isolated DC-DC converters in portable equipment, handheld instruments, and low-voltage point-of-load power supplies where input voltages range from 1.8 V to 8 V. Its configurable peak current-mode and PFM technique make it well-suited for battery-powered IoT nodes and wireless sensor hubs that must maintain high efficiency from light to full load. The 20-pin TSSOP package fits onto space-limited multi-rail power boards in consumer electronics and industrial controllers.
What are the specifications of UCC39422PWG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | CONFIGURABLE PEAK CURRENT MODE; PROGRAMMABLE PFM TECHNIQUE |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 8V |
| Input Voltage-Min | 1.8V |
| Input Voltage-Nom | 3V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.00065A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.06mA |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 2000kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the UCC39422PWG4 datasheet?
UCC39422PWG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for UCC39422PWG4?
Compatible alternatives and drop-in replacements for UCC39422PWG4:
Switching Controller, Voltage-mode, 0.00065A, 2000kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What input voltage range does UCC39422PWG4 support, and how does this affect converter topology selection?
UCC39422PWG4 operates from 1.8 V to 8 V input with a nominal supply of 3 V, making it compatible with single or dual lithium-ion cell inputs as well as regulated 5 V bus supplies. This range allows designers to implement both buck and boost topologies from the same controller, reducing the number of qualified parts in a portable product BOM. At 8 V maximum input the device suits USB Power Delivery and 5 V plus 3.3 V cascaded rail architectures.
How does the programmable PFM technique in UCC39422PWG4 improve efficiency at light loads compared to fixed-frequency PWM controllers?
At light loads UCC39422PWG4 transitions from fixed-frequency PWM to pulse-frequency modulation, reducing switching losses and gate-drive power proportionally to the load current. This can cut quiescent supply current by several hundred microamperes versus a fixed-frequency controller operating at the same switching frequency. The PFM threshold and transition behavior are programmable via external resistor networks in the 20-pin TSSOP design.
For a low-voltage point-of-load converter, what package and pin count does UCC39422PWG4 offer?
UCC39422PWG4 is packaged in a 20-pin TSSOP with 0.65 mm pitch, occupying approximately 6.5 mm x 4.4 mm board area. The 20 pins provide dedicated connections for the oscillator, soft-start, compensation network, current sense, and gate drive signals, allowing a complete synchronous DC-DC converter to be built with minimal external components. The TSSOP footprint is compatible with standard SMT assembly and reflow soldering processes.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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