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ST-NXP Wireless 34.807IRELESS www.stnwireless.com STw4410 2 Step down DC/DC converter/4 LDO/MMC interface power management Data Brief Features ■ ■ ■ ■ STw4410T/LF TFBGA 84 6x6x1.2mm 0.5mm pitch 2 Step-down converters – Vsdc1: 1 to 1.5 V with 15 steps at 650 mA, and 1.2, 1.3, 1.4 & 1.5 V by ball programming – Vsdc2: 1.8 V at 600 mA for general purpose usage STw4410/LF VFBGA 84 4.6x4.6x1.0mm 0.4mm pitch 4 Low-drop output regulators for different uses – Vdig: 1.0, 1.2, 1.5 - 250 mA, supplied by Vsdc2 – Vana1: 1.5, 1.8, 2.5, 2.8 V - 150 mA – Vana2: 1.5, 1.8, 2.5, 2.8 V - 150 mA – Vana3: 1.5, 1.8, 2.5, 2.8 V - 150 mA The high level of the dynamic performances allows to use the product to supply all processors used mobile phone or in multimedia platform, furthermore, the output voltage programming of Vsdc1 SMPS converter allows to use this power management unit with all actual processors. Mass memory cards (SD/MMC/SDIO) – Vmmc: 1.8, 2.5, 2.85, 3 V - 150mA – Level shifters The second SMPS has been designed with a fixed voltage of 1.8V that can be used to supply a wild range of external devices as memory devices for instance. Miscellaneous – 32 kHz control for processor – Processor supply monitoring – Processor reset control – Serial I2C interface – Thermal shutdown, thermal interruption warning for processor – Clock squarer for master clock The four LDO’s can supply all the peripheral devices that can be used on a multimedia platform like audio or TV out devices for example. Vdig is a high current capability LDO and it is supplied by the Vsdc2 SMPS to reduce the power dissipation. This product has also embedded MMC level shifters and the associated LDO to be used to address the MMC card. Description STw4410 is a power management device with advanced features. The two Switched Mode Power Supplies (SMPS) and the four Low Drop Output regulators (LDO) had been designed to use the better external components, to have the better efficiency and the better noise rejection to the load and line transient perturbation. Soft-start procedure had been embedded in the device managing the internal clock and the start of the different voltage of the DC/DC regulators. OTG programming could be done to change the power supply start timing to let customer the flexibility needed in their applications. STw4410 has got an internal clock that can be used to switch the SMPS without any external clock. This product suits well all mobile applications thanks to its very low consumption in sleep mode. December 2006 The STw4410 typical applications are imaging processor, application processor supply solutions, mobile phones, personal digital assistants (PDA). Rev 1 For further information contact your local STMicroelectronics sales office. 1/3 www.st.com 3 Block diagram STw4410 Block diagram Figure 1. STw4410 block diagram Ordering information Table 1. Order codes Part number(1) Package STw4410T/LF TFBGA84 STw4410/LF VFBGA84 1. Specific programming of OTP parameters are possible, for OTP customization, contact your ST local sale representative Revision history Table 2. 2/3 Document revision history Date Revision 22-Dec-2006 1 Changes Initial release. STw4410 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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