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BD9132MUV Datasheet(PDF) 1 Page - Rohm |
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BD9132MUV Datasheet(HTML) 1 Page - Rohm |
1 / 17 page TECHNICAL NOTE Single-chip Type with built-in FET Switching Regulator Series Output 2A or More High Efficiency Step-down Switching Regulator with Built-in Power MOSFET BD9132MUV ● Description ROHM’s high efficiency step-down switching regulator BD9132MUV is a power supply designed to produce a low voltage including 0.8 volts from 5.5/3.3 volts power supply line. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load. ● Features 1) Offers fast transient response with current mode PWM control system. 2) Offers highly efficiency for all load range with synchronous rectifier (Nch/Nch FET) and SLLM (Simple Light Load Mode) 3) Incorporates soft-start function. 4) Incorporates thermal protection and ULVO functions. 5) Incorporates short-current protection circuit with time delay function. 6) Incorporates shutdown function Icc=0μA(Typ.) 7) Employs small surface mount package : VQFN020V4040 ● Use Power supply for LSI including DSP, Micro computer and ASIC ● Absolute Maximum Rating (Ta=25℃) Parameter Symbol Limits Unit BD9132MUV VCC Voltage VCC -0.3~+7 * 1 V PVCC Voltage PVCC -0.3~+7 * 1 V BST Voltage VBST -0.3~+13 V BST_SW Voltage VBST-SW -0.3~+7 V EN Voltage VEN -0.3~+7 V SW,ITH Voltage VSW, VITH -0.3~+7 V Power Dissipation 1 Pd1 0.34 * 2 W Power Dissipation 2 Pd2 0.70 * 3 W Power Dissipation 3 Pd3 1.21 * 4 W Power Dissipation 4 Pd4 3.56 * 5 W Operating temperature range Topr -40~+105 ℃ Storage temperature range Tstg -55~+150 ℃ Maximum junction temperature Tj +150 ℃ * 1 Pd should not be exceeded. * 2 IC only * 3 1-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm 2 * 4 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 10.29mm 2 , in each layers * 5 4-layer. mounted on a 74.2mm×74.2mm×1.6mm glass-epoxy board, occupied area by copper foil : 5505mm 2, in each layers ● Operating Conditions (Ta=-40~+105℃) Parameter Symbol BD9132MUV Unit Min. Typ. Max. Power Supply Voltage VCC 2.7 3.3 5.5 V PVCC 2.7 3.3 5.5 V EN Voltage VEN 0 - 5.5 V Output voltage Setting Range VOUT 0.8 - 3.3* 6 V SW average output current ISW - - 3.0* 7 A * 6 In case set output voltage 1.6V or more, VccMin = Vout+1.2V. * 7 Pd should not be exceeded. Jul. 2008 |
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