1 Features

• High-density DC/DC module with optimized

integrated transformer technology

• Input voltage range: 4.5 V to 5.5 V

• Output voltages (selectable): 5.4 V, 5.0 V, 3.7 V,

3.3 V

• Output power: 500 mW

• Peak efficiency: 60%

• Line regulation (typical): 1%

• Load regulation (typical): 1.5%

• Meets CISPR32 Class B EMI limits without ferrite

beads on a 2-layer PCB

• Spread spectrum modulation (SSM)

• Robust isolation barrier:

– Isolation rating: 5 kVRMS

– Surge capability: 10 kVPK

– Working voltage: 1.2 kVRMS

– CMTI (typical): ±100 V/ns

• Short circuit recovery

• Thermal shutdown

• 16-pin wide-body SOIC package with > 8-mm

creepage and clearance

• Extended temperature range: –40°C to 125°C

• Safety-related certifications:

– 7071-VPK reinforced isolation per DIN V VDE V

0884-11:2017-01

– 5000-VRMS isolation for 1 minute per UL 1577

– UL certification per IEC 60950-1, IEC 62368-1

and IEC 60601-1 end equipment standards

– CQC approval per GB4943.1-2011

2 Applications and Uses

• On-board charger

• Battery management system

• Traction inverter

• DC/DC converter for HEV/EVs

3 Description

UCC12050 is an automotive qualified DC/DC power

module with 5-kVRMS reinforced isolation rating

designed to provide efficient, isolated power to

isolated circuits that require a bias supply with a

well-regulated output voltage. The device integrates

a transformer and DC/DC controller with a proprietary

architecture to provide 500 mW (typical) of isolated

power with low EMI.

The UCC12050 integrates protection features for

increased system robustness. The device also has an

enable pin, synchronization capability, and regulated

5-V or 3.3-V output options with headroom. The

UCC12050 is a low-profile, miniaturized solution

offered in a wide-body SOIC package with 2.65-mm

height (typical).