Miniature, 1 W DC/DC Converters feature 3 kV isolation.

Press Release Summary:

Supplied in RoHS-compliant package measuring 20 x 8 x 10 mm, DCH01 series provides up to 85% efficiency and meets UL60950 specifications with EN55022 Class B EMC performance. Unregulated dc/dc converters offer point-of-load power conversion and ground loop elimination for noise-sensitive applications. With open-frame design, plug-in power modules operate from 5 V input and provide single voltages of 5, 12, and 15 V as well as complementary dual-output voltages of ±5, ±12, and ±15 V.

Original Press Release:

TI Introduces Miniature, 1-W DC/DC Converters with 3-kV Isolation

DALLAS (June 27, 2006) - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a 1-W, unregulated DC/DC converter in a miniature package that features 3-kV isolation. The new DCH01 family of plug-in power modules operates from a 5-V input and provides single voltages of 5 V, 12 V, and 15 V and complementary dual-output voltages of ±5 V, ±12 V and ±15 V. The tiny modules are ideal for industrial applications such as data acquisition, motor control, programmable logic control, test and measurement, medical instrumentation and professional audio. See

TI's DCH01 series provides up to 85-percent efficiency and easily meets UL60950 specifications with 3 kVrms isolation and EN55022 Class B EMC performance. Supporting an operating temperature range of -40° C to 85° C, the modules easily power TI's new ISO721 and ISO721M high-speed digital isolators, which were introduced in January (see: In addition, the DCH01 provides highly effective point-of-load power conversion and ground loop elimination for noise-sensitive applications.

The DCH01 uses reliable PC-board construction, and is housed in an industry standard 20 mm x 8 mm x 10 mm SIP-7 package that is Pb-free/RoHS compliant. DCH01's open-frame design enhances reliability by eliminating potting commonly found in competitive products.

Available Today

The DCH01 series is currently shipping in volume production from TI and its authorized distributors. The modules are priced at $4.25 in 1,000 piece quantities (suggested resale pricing).
Part Number      Vin    Vout
DCH010505SN7 5 V 5 V
DCH010505DN7 5 V ±5 V
DCH010512SN7 5 V 12 V
DCH010512DN7 5 V ±12 V
DCH010515SN7 5 V 15 V
DCH010515DN7 5 V ±15 V

Texas Instruments Incorporated provides innovative DSP and analog technologies to meet our customers' real world signal processing requirements. TI is headquartered in Dallas, Texas, and has manufacturing, design or sales operations in more than 25 countries.

Texas Instruments is traded on the New York Stock Exchange under the symbol TXN. More information is located on the World Wide Web at

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