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UCC3803D The Texas Instruments UCC3803D is a current mode PWM controller designed for DC/DC switching power supplies. It operates within a voltage range of 3.6V to 12V and is suitable for surface mount applications.
Mfr Part #:

UCC3803D

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments UCC3803D is a current mode PWM controller designed for DC/DC switching power supplies. It operates within a voltage range of 3.6V to 12V and is suitable for surface mount applications.
✓ Total Stock: 47,700 pcs
$ Price Range: $1.56

UCC3803D Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
45,200 pcs
On Request
45200 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

UCC3803D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Sync
Control Features
Duty Cycle (Max)
Frequency
Function
Mounting Type
Number of Outputs
Operating Temperature
Output Configuration
Output Phases
Output Type
Supplier Device Package
Supplier Package
Synchronous Rectifier
Topology
Voltage
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UCC3803D Description

Short technical summary and product information.

The Texas Instruments UCC3803D is a low-power BiCMOS current-mode PWM controller. It integrates control and drive components for off-line and DC-to-DC fixed frequency switching mode power supplies.

 

This controller supports multiple topologies including Buck, Boost, Flyback, and Forward converters. It features an operating voltage range of 3.6V to 12V and a maximum duty cycle of 99%. The operating temperature range is specified from 0°C to 70°C (TA).

 

Key electrical characteristics include a typical operating frequency of 31kHz and a typical starting supply current of 100µA, with an operating current of 500µA. It offers features like frequency control, internal soft start, and internal leading-edge blanking of the current-sense signal. The device is housed in an 8-SOIC package suitable for surface mounting.

 

The UCC3803D is designed for applications requiring efficient power conversion with minimal external components. Its pinout is compatible with the UC3842 family, offering an upgrade path for existing designs.

UCC3803D Quick Information

Product Type: DC DC Switching Controller
Canonical Name: UCC3803D Current Mode PWM Controller
Subcategory: Current Mode

UCC3803D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UCC3803D Estimated Pricing

Qty Low High
1+ $1.56 $1.56

Estimated market price range - modelled values for guidance only, not live distributor offers.

UCC3803D Features

  • Current mode PWM controller for power supplies.
  • Supports multiple converter topologies.
  • Wide operating voltage range of 3.6V to 12V.
  • Surface mountable 8-SOIC package.
  • Low power consumption for efficiency.

UCC3803D Applications

  • Used in DC-to-DC power conversion.
  • Suitable for off-line power supplies.
  • Ideal for battery-powered devices.
  • Enables efficient switching regulators.

UCC3803D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the UCC3803D?

3.6V to 12V.

What package is the UCC3803D available in?

8-SOIC (8-pin small outline IC).

What is the operating temperature range?

0°C to 70°C.

What topologies does the UCC3803D support?

Buck, boost, flyback, and forward converter.

What is the maximum duty cycle?

99%.

What is the typical oscillator frequency?

31kHz.

What is the maximum switching frequency?

1MHz.

UCC3803D Alternate Parts

Same form/fit/function or matching attribute configuration across different manufacturers.
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UCC3803DTR
UCC3803DTR
Texas Instruments
The Texas Instruments UCC3803DTR is a current mode PWM controller designed for DC-to-DC power supplies. It supports multiple topologies including Buck, Boost, Flyback, and Forward Converter.
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