SC190CIMLTRT Semtech, SC190CIMLTRT Datasheet
SC190CIMLTRT
Specifications of SC190CIMLTRT
Related parts for SC190CIMLTRT
SC190CIMLTRT Summary of contents
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... Cordless Phones Notebook and Subnotebook Computers PDAs and Mobile Communicators WLAN Peripherals 1 Li-Ion or 3 NiMH/NiCd Powered Devices 4.7µH SC190 VIN LX LOUT EN VOUT SYNC/PWM VID0 BP VID1 GND MODE 1 SC190 VOUT COUT 4.7µF CBP 4.7µF www.semtech.com ...
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... Electrical Characteristics Unless otherwise noted 3.6V, SYNC/PWM = V IN Use of standard ESD handling precautions is required. Parameter Symbol Input Voltage Range Input Voltage Ripple V V Line Regulation Load Regulation V LOADREG P-Channel On Resistance N-Channel On Resistance R Start Up Time T 2005 Semtech Corp. Symbol OUT V BP θ ...
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... N-Channel Current Limit I Quiescent Current Shutdown Current LX Leakage Current PMOS LX Leakage Current NMOS Output Voltage Noise Oscillator Frequency SYNC Frequency (upper) f SYNCU SYNC Frequency (lower) f 2005 Semtech Corp. , MODE = GND -40 to 85°C. Typical values are Conditions I = 150mA OUT MODE = 1mA ...
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... SC190C. This also forces the specification range to grow wider because it is expressed as a percentage of the input voltage range. (3) Tested 180mA. Equivalent ( OUT. 2005 Semtech Corp. , MODE = GND -40 to 85°C. Typical values are Conditions V UVL UVLHYS ...
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... LX Inductor connection to the switching FETs. T Thermal Pad for heatsinking purposes. Not connected internally. Connects to ground plane using multiple vias. 2005 Semtech Corp. Ordering Information Device SC190AIMLTRT SC190BIMLTRT LX 10 SC190CIMLTRT GND 9 SC190DIMLTRT SC190AEVB VID1 8 SC190BEVB VID0 7 SC190CEVB SC190DEVB SYNC/PWM 6 (1) Lead-free packaging only. This product is fully WEEE and RoHS compliant ...
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... Generator MODE Handover 5 Timing 500 mV reference LDO Error Amp Back-End VOUT LDO 3 VID0 Voltage 7 Select VID1 2005 Semtech Corp. REF LDO Error Amp P Limit Amp REF PWM comp Error Amp 6 SC190 Front-End LDO Current Amp Control Logic REF N Limit Comp www ...
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... SYNC/PWM pin. Efficiency at moderate to high loads can be improved by shorting the VIN to BP pins at the expense of higher input voltage ripple. 2005 Semtech Corp. Continuous Conduction & Oscillator Synchronization The SC190 is designed to operate in continuous conduction mode thereby maintaining a fixed frequency. When the SYNC/PWM pin is tied high the part runs under control of the internal oscillator ...
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... The back-end LDO regulator has a current limit feature which will limit the maximum output current during LDO regulator mode to 50mA. 2005 Semtech Corp. Overvoltage Protection Overvoltage protection is provided on the SC190. In the event of an overvoltage on the output in switcher mode, ...
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... Taiyo Yuden LMNP04SB100M Coilcraft LPS3015 Coilcraft LP06610-103M 2005 Semtech Corp. Inductor Selection As previously stated the value of the inductor should be in The internal the range 4.7µH to 10µH. The magnitude of the inductor current ripple is dependant on the inductor value and can ...
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... Poor regulation and instability can result. A few simple design rules can be implemented to ensure good layout: Suggested Layout 2005 Semtech Corp. 1. Place the inductor and filter capacitors as close to the device as possible and use short wide traces between the power components. 2. Route the output voltage feedback path away from inductor and LX node to minimize noise and magnetic interference ...
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... Do not use Y5V capacitors - their temperature coefficients make them impractical for this application. Table 3: Recommended Capacitors Manufacturer Part Number Murata GRM188R60J475KE19D Murata GRM188R60G106ME47D TDK C1608X5ROG106M 2005 Semtech Corp. ) Cout ( ESR ) • Value Rated Voltage (µF) 4.7 10 ...
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... POWER MANAGEMENT Typical Characteristics NOTE: Conditions 10µH, Cout = 10µF Input Voltage Ripple (FELDO bypassed) Handover Transition Linear to Switcher Mode 2005 Semtech Corp. Input Voltage Ripple (FELDO active) V (AC Handover Transition Switcher to Linear Mode LX V (AC) OUT SC190 V (AC (AC) OUT I L www.semtech.com ...
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... Maximum Input Voltage vs Synchronization Frequency - V OUT 6 5.5 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 0.7 0.8 0.9 1 1.1 1.2 FREQUENCY (MHz) 2005 Semtech Corp. SC190C Line Regulation (FELDO Active) 2.9 2 2.8V OUT I = 0.15A OUT 2.7 2.6 2 2.5V OUT I = 0.15A OUT 2.4 2.3 4.7 5.1 5 ...
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... TEMPERATURE (°C) Input Current vs Output Current 1000 100 10 1 0.1 0.01 0.01 0 OUTPUT CURRENT (mA) 2005 Semtech Corp. Oscillator Frequency vs Temperature 1200 1000 800 600 400 Vin = 2.7V Vin = 3.6V Vin = 5.5V 200 0 80 100 120 -40 Linear Regulator Switching Regulator 100 ...
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... POWER MANAGEMENT Evaluation Board Schematic TP1 VIN VIN 10uF TP2 EN TP3 MODE TP4 SYNC/PWM TP5 VID0 TP6 VID1 2005 Semtech Corp VIN MODE 6 SYNC/PWM 7 VID0 8 VID1 DIP_SW SC190 VIN J1 JUMPER1 TP7 TP8 TP13 LX NODE VOUT VOUT sense load SC190 L1 10 ...
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... POWER MANAGEMENT Evaluation Board Gerber Plots Top Copper Top Silkscreen 2005 Semtech Corp. Bottom Copper Bottom Silkscreen 16 SC190 www.semtech.com ...
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... MARK) aaa C LxN NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS TERMINALS. Marking Information 190n yyww xxxx yy = two digit year of manufacture ww = two digit week of manufacture xxxx = lot number "n" can 2005 Semtech Corp DIM aaa ...
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... POWER MANAGEMENT Land Pattern - MLP-10 3x3 (C) X NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information Phone: (805) 498-2111 FAX (805)498-3804 2005 Semtech Corp. K DIM INCHES Semtech Corporation ...