sip12203 Vishay, sip12203 Datasheet
sip12203
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sip12203 Summary of contents
Page 1
... DC/DC components from being damaged under overload or short circuit conditions. Other protection features include under voltage lockout, over voltage protection and thermal shutdown. The SiP12203 is available in a lead (Pb)-free MLP55-28 package and is specified to operate within - 40 °C to 125 °C junction temperature. TYPICAL APPLICATION CIRCUIT ...
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... RECOMMENDED OPERATING RANGE Parameter and I to GND IN SENSE DH and BST to LX All other pins to GND Output Voltage Operating Junction Temperature ORDERING INFORMATION Part Number SiP12203DLP-T1-E3 SPECIFICATIONS Parameter Symbol Controller Input Voltage Regulated Voltage a Oscillator Frequency ΔV Oscillator Ramp Amplitude b V Oscillator Ramp Offset ...
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... Pull-up resistor = 100 kΩ Lkg Percentage of set point when FB1 or FB2 is THH rising until Percentage of set point when FB1 or FB2 is THL falling until Percentage of set point when FB3 is falling LDO until SiP12203 Vishay Siliconix Limits a b Min. Typ. Max. 2 100 0.6 6.5 0.8 2 ...
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... SiP12203 Vishay Siliconix SPECIFICATIONS Parameter Symbol Protection Under Voltage Lockout for Under Voltage Lockout UVLO Hysteresis T Thermal Shutdown Threshold T Thermal Shutdown Hysteresis V Over Voltage Trip Threshold V Over Voltage Hysteresis OVHYS Hiccup Period Over Current Limit (Channel 1 and Channel 2) Current Limit Source Current ...
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... V. If one of the 2 channels powers the linear regulator, then during startup the output of the linear regulator will track the input with the voltage differential between the input and the output of the SiP12203 Vishay Siliconix voltage drop, the actual current limit has DS(ON) ...
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... Sync pin low and DS(ON) high, since the SiP12203 has an internal 100K pull down resistor. When not used, connect this pin to an adjacent analog ground pin or leave it open. Power good (PG) Power good is a system level feature. PG has an open-drain output so a pull-up resistor is required ...
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... LX1 to BST1 25 DL1 Converter 1 low-side gate drive 26 DL2 Converter 2 low-side gate drive Bootstrap voltage for converter 2 high-side MOSFET driver. Connect a 0.1 µF or greater capacitor 27 BST2 between LX2 to BST2 28 DH2 Converter 2 high-side gate drive Document Number: 69986 S-82337-Rev. B, 22-Sep-08 Vishay Siliconix Function L SiP12203 www.vishay.com 7 ...
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... SiP12203 Vishay Siliconix APPLICATION INFORMATION Startup Circuit What is a startup circuit? Why is it needed? To answer this question, let us take a look at an application example pulled through a 100k resistor. L After input power supply is turned on, V and V ramps up at the same rate regulated voltage, typical 5 V) ...
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... The SiP12203 uses voltage mode control in conjunction with a high frequency transconductance error amplifier. The volt- age feedback loop is compensated at the COMP pin, which is the output node of the error amplifier. The feedback loop is generally compensated with (one pole, one zero) network from COMP to AGND ...
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... However, noise levels can be minimized by properly laying out the components. Here are some general guidelines for laying out a step-down converter with the SiP12203. Since power traces in step down converters carry pulsating current, energy stored in trace inductance during the pulse can cause high-frequency ringing with input and output capacitors ...
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... Temperature (°C) Switching Frequency f SW Document Number: 69986 S-82337-Rev. B, 22-Sep-08 110 160 vs. Temperature 110 160 Max. Duty Cycle vs. Temperature in Steady State Mode 110 160 vs. Temperature SiP12203 Vishay Siliconix 100 120 140 160 Temperature (°C) Max ...
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... SiP12203 Vishay Siliconix TYPICAL CHARACTERISTICS 3 2 Temperature (°C) Quiescent Current I vs. Temperature Q 3.36 3.34 3.32 3.30 3.28 3.26 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Load Current (V) Channel 1 Load Regulation www.vishay.com 110 160 - 40 5.05 5. 4.99 4.97 4. 110 Temperature (°C) Current Limit I vs Temperature 5 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Load Current (A) ...
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... ms/div t: 1 ms/div V/div V/div (COMP2: 0.5 V/div V/div) O2 SiP12203 Vishay Siliconix V/div (EN2: 2 V/div) C3 (COMP2: 0.5 V/div 0.5 V/div 4.7 µ ms/div Channel 2 Startup (COMP1: 0.5 V/div) ...
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... SiP12203 Vishay Siliconix TYPICAL WAVEFORMS V/div) LDO_IN V/div) LDO_OUT C2 C3 C4: D3: 1 V/div) C4 LDO Steady State mV/div, AC coupled 0.5 A/div) O1 Slew Rate: 1 A/µs V set to 3.3 V/div 4.7 µ 600 µ 200 µs/div Channel 1 Transient Response mV/div, AC coupled) ...
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... Document Number: 69986 S-82337-Rev. B, 22-Sep-08 = 600 µ set to 3 ms/div set to 3 4.7 µ 600 µ SiP12203 Vishay Siliconix L = 4.7 µ 600 µ Over Current set A/div) O2 Load Current = V/div) V set to 1 ...
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... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...