UCC25705DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC25705DG4 is a voltage-mode PWM controller IC from Texas Instruments, featuring up to 4000kHz switching frequency, 20mA drive capability, and an input voltage range of 9V to 15V. Housed in an 8-pin SOIC surface-mount package, it enables precise pulse-width modulation control for compact switching power supply designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC25705DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- High switching frequency up to 4000kHz enabling use of smaller passive components and compact converter designs
- Voltage-mode PWM control for straightforward loop compensation and stable regulation across load conditions
- Input voltage range from 9V to 15V ideal for 12V bus-powered power supply applications
- 20mA output drive current in compact 8-pin SOIC package for space-efficient PCB layouts
Applications
The UCC25705DG4 is used in high-frequency switch-mode power supplies where compact magnetics and small passive components are required, such as point-of-load converters, isolated DC-DC modules, and telecom power stages. Its voltage-mode PWM control simplifies the error amplifier compensation network while the 4MHz switching capability significantly reduces transformer and inductor size. It is well suited for embedded systems, industrial automation, and communications equipment powered from 9V to 15V input rails.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 9V |
| Input Voltage-Nom | 11V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.02A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 4000kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC25705DG4:
Switching Controller, Voltage-mode, 0.02A, 4000kHz Switching Freq-Max, PDSO8
Switching Controller, Voltage-mode, 0.02A, 4000kHz Switching Freq-Max, PDSO8
Frequently Asked Questions
What is the maximum switching frequency of the UCC25705DG4?
The UCC25705DG4 supports switching frequencies up to 4000kHz (4MHz), which allows designers to use significantly smaller inductors, transformers, and filter capacitors compared to lower-frequency controllers, reducing overall converter size and cost.
What control mode does the UCC25705DG4 use?
The UCC25705DG4 uses voltage-mode PWM control, where the output voltage error signal directly modulates the duty cycle through a sawtooth ramp comparator, providing predictable loop dynamics and straightforward Type-II or Type-III compensation network design.
What is the input voltage range of the UCC25705DG4?
The UCC25705DG4 operates from 9V minimum to 15V maximum input voltage with a nominal operating voltage of 11V, making it directly compatible with 12V supply rails widely used in industrial, telecom, and embedded system power architectures.
What package does the UCC25705DG4 come in?
The UCC25705DG4 is housed in an 8-pin PDSO SOIC surface-mount package, providing a compact footprint with standard SMT land pattern compatibility, simplifying PCB layout and enabling automated pick-and-place assembly.
Is the UCC25705DG4 RoHS compliant?
Yes, the UCC25705DG4 carries a JESD-609 code of e4, confirming it is a lead-free and RoHS-compliant component, suitable for use in products destined for markets in Europe, Asia, and other regions with environmental substance restrictions.
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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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