G1442 Global Mixed-mode Technology Inc. 2.6W Mono Audio Amplifier with Shutdown Mode Features General Description The G1442 is a mono audio power amplifier in 8 pin SOP-8, MSOP-8, SOP-8 (FD) or TDFN3X3-8 with thermal pad package. It can drive 2W continuous RMS power into 4Ω load in Bridge-Tied Load (BTL) mode at 5V supply voltage. Its THD is smaller than 1% under the above operation condition. For the low current consumption applications, the SHDN mode is supported to disable the G1442 when it is idle. The current consumption can be further reduced to below 1µA. Depop Circuitry Integrated 2.7V to 5.5V Operation Output Power at 10% THD+N, VDD=5V --2.6W (typical) into a 3Ω Load Output Power at 1% THD+N, VDD=5V --2W (typical) into a 4Ω Load --1.3W (typical) into a 8Ω Load Mono Bridge-Tied Load (BTL) Shutdown Control Available SOP-8, MSOP-8, SOP-8 (FD) and TDFN3X3-8 Package Available Giving the SHUTDOWN pin low level will drive the G1442 entering the shutdown. Applications PDAs Portable Devices Notebook Ordering Information ORDER NUMBER MARKING TEMP. RANGE PACKAGE (Green) G1442P11U G1442P81U G1442F11U G1442 G1442 G1442 -40°C to +85°C -40°C to +85°C -40°C to +85°C SOP-8 MSOP-8 SOP-8 (FD) G1442RD1D G1442RD1U 1442 1442 -40°C to +85°C -40°C to +85°C TDFN3X3-8 TDFN3X3-8 Note:P1: SOP-8 P8: MSOP-8 1: Bonding Code U & D: Tape & Reel F1: SOP-8 (FD) RD: TDFN3X3-8 Pin Configuration G1442 G1442 G1442 SHUTDOWN 1 8 VO2 SHUTDOWN 1 8 VO2 SHUTDOWN 1 BYPASS 2 7 GND BYPASS 2 7 GND BYPASS 2 IN+ 3 6 VDD IN+ 3 6 VDD IN+ 3 IN- 4 5 VO1 IN- 4 5 VO1 SOP-8/MSOP-8 Thermal Pad Top View SOP-8 (FD) IN- Thermal Pad 4 8 VO2 7 GND 6 VDD 5 VO1 TDFN3X3-8 Note: Recommend connecting the Thermal Pad to the GND for excellent power dissipation. TEL: 886-3-5788833 http://www.gmt.com.tw Ver: 1.5 May 21, 2009 1