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L5953 Datasheet(PDF) 1 Page - STMicroelectronics |
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L5953 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 31 page  September 2007 Rev 2 1/31 1 L5953 Multiple switching voltage regulator Features ■ PWM: adjustable 2.5/10V - 1A switching voltage regulator ■ External POWER MOS ability for output current enhancement ■ Synchronization function ■ REG1- Linear low drop 3.3/5V - 250mA STBY voltage regulator (low current consumption) with RESET ■ REG2- Linear voltage regulator 1.5V to 3.3V externally adjustable - 300mA maximum current ■ HSD1 : 500mA High side driver ■ HSD2 : 200mA High side driver ■ SPI Interface ■ SPI Diagnostics HSD1, HSD2 ■ Double switching frequency SPI selectable ■ Double inpuT LVW SPI functions ■ Input controls – Turn-on/off PWM – Turn-on/off REG2 – Turn-on/off HSD1 – Turn-on/off HSD2 – Switching frequency selection f1- f2 ■ Output functions: – HSD1 & HSD2 short to gnd, open load and short to battery (Test mode) – Thermal warning Protections ■ Over voltage protection ■ Internal current limiting ■ Thermal shutdown ■ ESD Description The L5953 is the integration of one switching regulator, two linear voltage regulators, two low voltage warnings and two high side drivers. It has a stand-by operation mode (low current consumption) where only the stand-by voltage regulator plus the low voltage warnings are active. The other regulators and high side drivers are controlled by the SPI interface. PowerSO36 Table 1. Device summary Part number Package Packing L5953 PowerSO36 Tray www.st.com |
Similar Part No. - L5953_07 |
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Similar Description - L5953_07 |
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