sc183c Semtech Corporation, sc183c Datasheet
sc183c
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sc183c Summary of contents
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... The SC83C is available in a thermally-enhanced, 3mm x 3mm x 0.6mm MLPQ-UT6 package and has a rated tem- perature range of -40 to +85°C. L 2.2µH LX PVIN SC183C VOUT AVIN CTL0 CTL1 PGND CTL2 CTL3 AGND SC183C V OUT 1.50V / 2.0A C OUT 22µF www.semtech.com ...
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... CTL3 Device Package 3mm x 3mm x 0.6mm MLPQ-UT16 (2)(3) Evaluation Board (4) Table 1 – Output Voltage Settings CTL2 CTL1 CTL0 Output Voltage Shutdown www.semtech.com SC183C 0.80 .00 .025 .05 .20 .25 .30 .50 .80 2.20 2.50 2.60 2.80 3.00 3.30 ...
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... Unless otherwise noted typical values are J≤ Min Typ 2.70 2.80 240 300 (2) =0A -2.0 OUT 2.5 3 0.0 0. °C 0.09 0.25 = AGND 0-3 = AGND -0 - 0-3 =mA – 2A ±0.5 2.25 2.500 50 850 -2.0 -2.0 www.semtech.com SC183C ………… 40 °C/W Max Units 2. +2.0 % 3. µA 0.25 0.8 Ω 0.5 0.60 0 µA ±.0 % 2.875 MHz 980 µs 2.0 µA 2.0 µA ...
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... The negative current means the current flows through into the pin and the positive current means the current flows through out from the pin. © 2009 Semtech Corp. = 0µ 22µF; L= 2.2µH; -40°C≤ OUT Conditions EN_HI EN_LO V OVP T SD SD_HYS 4 SC183C ≤ +25 °C; Unless otherwise noted typical values are J≤ Min Typ Max .2 0.4 0 5 20 60 0 www.semtech.com Units ...
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... C A 0.0 0.4 0.8 1.2 Output Current (A) Total Loss vs. Load Current (V OUT Total Loss 3.3V OUT T =25° L=1071AS-2R2 (50m_typ) L=1071AS-1R0 (33m_typ) L=1127AS-2R2 (40m_typ) 0 0.0 0.4 0.8 1.2 Output Current (A) Load Regulation (V =3.3V) Load Regulation OUT 3.3V OUT T =25° 0.0 0.4 0.8 1.2 Output Current (A) www.semtech.com SC183C =3.3V) 1.6 2.0 =3.3V) 1.6 2.0 1.6 2.0 ...
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... N-Channel P-Channel -40 - Ambient Temperature (° C) Switching Frequency vs. Temperature Switching Frequency Variation OUT -40 - Ambient Temperature (° C) Line Regulation vs. Temperature Line Regulation over Temperature V = 1.5V OUT OUT -40 - Ambient Temperature (° C) www.semtech.com SC183C ...
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... L= 1127AS-2R2M (DCR=48m_max 0.0 0.4 0.8 Output Current (A) © 2009 Semtech Corp -1% -2% -3% -4% -5% - 1.2 1.6 2.0 7 SC183C UVLO Hysteresis Variation UVLO Hysteresis Variation OUT - Ambient Temperature (° C) www.semtech.com 85 ...
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... V LX 2V/div =3.3V) OUT =3.3V) OUT V OUT 10mV/div I LX 1A/div V LX 2V/div =1.5V) OUT Transient Response (V V OUT 100mV/div I OUT 500mA/div 8 SC183C Output Voltage Ripple (V =1.5V) OUT Output Voltage Ripple (V =1.5V) OUT V =3.3V 500ns/div IN I =2A OUT Output Voltage Ripple (V =3.3V) OUT Output Voltage Ripple (V =3.3V) OUT V =5.0V 500ns/div IN I =2A OUT Transient Response (V =3 ...
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... OUT V =5.0V 200µs/div IN R =0.75 (2A) OUT Start Up (V =1.5V), EN=VIN OUT Start Up (Power =1.5V) IN OUT OUT V =5.0V 200µs/div IN R =0.75 (2A) OUT Start Up (V =3.3V) OUT Start Up (Enable)(V =3.3V) OUT OUT V =5.0V 200µs/div IN R =1.65 (2A) OUT www.semtech.com SC183C ...
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... Semtech Corp. =3.3V) OUT 2V/div V 1.5V/div =1.5V) OUT V 2V/div V 2V/div V 1.5V/div 0 Start Up (V =3.3V), EN=VIN OUT Start Up (Power =3.3V) IN OUT V IN OUT V =5.0V 200µs/div IN R =1.65 (2A) OUT Shutdown-Disable (3.3V) Shutdown (Disable)(V =3.3V) OUT IN EN OUT V =5.0V 200µs/div IN R =3.3 OUT www.semtech.com SC183C ...
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... Output voltage sense pin. ,2,3 PGND Ground connection for converter power stage. 4,5,6 LX Switching node - connect an inductor between this pin and the output capacitor. T Thermal Pad Thermal pad for heatsinking purposes. Recommend to connect it to PGND not connected internally. © 2009 Semtech Corp. SC183C www.semtech.com ...
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... Block Diagram AVIN Oscillator & Slope Generator VOUT CTL0 CTL1 CTL2 CTL3 © 2009 Semtech Corp. Current Amp Plimit Amp Plimit Comp Voltage PWM Comp Select Error Amp 500mV Ref AGND 2 SC183C Control LX Logic www.semtech.com PVIN PGND ...
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... OSTD OSTD is the pre-determined output voltage via the OSTD calculated from equation . For and C need to be adjusted to meet FB FB2 few hundred milliampere. Under this CL_HOLD ) will be decreased when output voltage CL_HOLD www.semtech.com SC183C is needed for V OSTD (1) ) − CL_ ...
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... Switch peak current limit to 100% level Conditions J Inductor current hits peak current limit Peak current limit for 16 consecutive cycles K Vout 100% target L M Inductor current doesn't hit peak current limit 4 SC183C Operation description Operation description Operation description Operation description www.semtech.com ...
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... Load and/or line tran- sients can cause the peak current to exceed this level for 5 of 3.3V over any operating condition. The π ⋅ OUT www.semtech.com SC183C of 5V and IN (2) ...
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... Table 3 lists the manufacturers of recommended output 0.70 2.8x3.0x.5 capacitor options. .54 3.5x3.7x.8 C Selection 0.70 3.2x3.2x.5 IN The SC83C source input current supply current with a triangular ripple imposed on it. To prevent large 6 SC183C I LOAD ⋅ f OSC ( ) V ⋅ V − ...
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... Part Nunber (VDC) Murata 0±0% X5R 6.3 GRM21BR60J106K Murata 0±0% X5R 6.3 GRM219R60J106K Murata 22±20% X5R 6.3 GRM21BR60J226M Murata 47±20% X5R 6.3 GRM31CR60J476M Table 3 – Recommended Capacitors © 2009 Semtech Corp. (5) (6) Value Dimensions at LxWxH 3.3V (mm) (μF) 2.0x.25x.25 4.74 (EIA:0805) 2.0x.25x0.85 4.05 (EIA:0805) 2.0x.25x.25 6.57 (EIA:0805) 3.2x.6x.6 20.3 (EIA:206) 7 SC183C www.semtech.com ...
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... And it will also improve the overall efficiency by reducing the copper losses on the output and ground planes. © 2009 Semtech Corp. VIN GND Figure 5 — Recommended PCB Layout . OUT VIN Figure 6 — Bottom Layer Detail 8 SC183C L VOUT U1 C OUT GND CTLx GND VOUT GND www.semtech.com ...
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... A2 b .007 .009 .012 0.18 0.23 0.30 D .114 .118 .122 2.90 3.00 3.10 D1 .061 .067 .071 1.55 1.70 1.80 E .114 .118 .122 2.90 3.00 3.10 E1 .061 .067 .071 1.55 1.70 1.80 e .020 BSC 0.50 BSC L .012 .016 .020 0.30 0.40 0. aaa .003 0.08 bbb .004 0.10 DIMENSIONS INCHES MILLIMETERS (.114) (2.90) .083 2.10 .067 1.70 .067 1.70 .020 0.50 .006 0.15 .012 0.30 .031 0.80 .146 3.70 www.semtech.com SC183C ...