The UCC38C44DGK is a high-performance, current-mode PWM controller designed for switch-mode power supplies and isolated power converters. It operates with a maximum frequency of 1MHz and features a low startup current of 50OºA, making it suitable for applications requiring efficient power management. The device supports a peak output current of ¬±1A and has fast rise and fall times of 25ns and 20ns, respectively, which enhances its capability to drive large external MOSFETs directly. This controller includes essential protections such as undervoltage lockout and fast cycle-by-cycle overcurrent limiting with a response time of 35ns. The UCC38C44DGK is housed in an 8-pin VSSOP package, which minimizes board space. It is specified for operation within a temperature range of 0¬8C to 85¬8C and is compliant with halogen-free standards. The device is an enhanced replacement for the UCx84x family, offering pin-to-pin compatibility, making it a versatile choice for engineers looking to upgrade or design new power supply solutions.
BiCMOS Low-Power Current Mode PWM Controller 8-VSSOP 0 to 70
Manufacturer: Texas Instruments
Win Source Part Number: 798739-UCC38C44DGK
Packaging: Tube
Operating Temperature Range: 0°C ~ 70°C (TA)
Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting: SMD
Output Isolation: Isolated
Internal Switch(s): No
Topology: Forward
Voltage - Start Up: 14.5V
Duty Cycle: 48%
Frequency - Switching: Up to 1MHz
Fault Protection: Current Limiting
Control Features: Frequency Control
Supply Voltage: 9 V ~ 18 V
Family Name: UCC38C44
Categories: Integrated Circuits (ICs)
Manufacturer Package: 8-VSSOP
Alternative Parts (Cross-Reference): LT1619EMS8#TRM; MAX15001BEUB+; LT1619EMS8#TR; LT1619EMS8#TRMPBF;
Introduction Date: April 01, 2005
ECCN: EAR99
Estimated EOL Date: 2031
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 67 pct.
Supply and Demand Status: Balance
20V, 1-A, Low current 1MHz current mode PWM controller with 14.5V/9V UVLO 50% duty cycle, 0C to 70C 8-VSSOP 0 to 70 Product overview: UCC38C44DGK from Texas Instruments is a DC-DC Converter IC for stable power rails, DC-DC conversion, battery-powered electronics, automotive modules, and embedded power management. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 20V, 1MHz, 14.5V. Search-friendly keywords include voltage regulator, LDO, buck converter, boost converter, power rail, 20V, 1MHz, 14.5V, DC-DC Converter IC, DC DC Switching Controllers. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 715-UCC38C44DGK can be used for catalog matching and distributor lookup.
| Texas Instruments | Win Source Electronics | ERSAELECTRONICS PTE. LTD. | |
|---|---|---|---|
| Product Category | IC Power Supplies | AC-DC Converter Chips | DC-DC Converter Chips |
| Product Number | UCC38C44DGK | 798739-UCC38C44DGK | 715-UCC38C44DGK |
| Product Name | UCC38C44 BiCMOS Low-Power Current Mode PWM Controller | PMIC - PMIC - AC DC Converters, Offline Switchers - UCC38C44DGK | 20V 1MHz 14.5V DC-DC Converter IC |
| Package Type | Other; PDIP,SOIC,VSSOP | SSOP; Other; 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Other; VSSOP |
| Features | Error Amplifier | ||
| Operating Temperature | 0.0 to 70 C (32 to 158 F) | 0.0 to 70 C (32 to 158 F) | 0.0 C (32 F) |
