SC560 SEMTECH [Semtech Corporation], SC560 Datasheet
SC560
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SC560 Summary of contents
Page 1
... The SC560A provides superior low-noise performance by using an external bypass capacitor connected to pin lter the bandgap reference. The SC560B uses pin separate enable pin for the second regulator output so the two outputs can be controlled independently. ...
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... The device variant is denoted by the x. 5 Pinout and Voltage Options Device Pin 4 SC560A FBA SC560B FBA SC560C FBA SC560D ENB SC560E ENB SC560F ENB SC560G ENB SC560H ENB SC560 Package (1)(2)(3) MLPQ-UT8 1.5×1.5 (3) Evaluation Board Output Voltage Pin Options Options Code ...
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... LOAD OUTx Δ 1mA LINE OUTx LIM (2) = 25°C. All A Min Typ 2.5 1 300mA -3 300 100 0.1 = 25°C 100 A MAX -6 0.985 1 350 SC560 < +85 A < 5.5 IN < 3.3 OUT (°C/ 157 Max Units 5 200 mV 1 μA μ 1.015 V 850 mA 3 ...
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... Logic Input Low Current Digital Outputs PGOOD Output voltage Low Notes: (1) Dropout voltage is defi ned OUTx (2) SC560A, SC560B and SC560C only (3) Except SC560B and fi xed output versions (4) Except SC560A and SC560B (5) SC560A and SC560C only Symbol Conditions V = 3.7V 50mA , IN OUTx 10Hz < ...
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... Line Regulation — LDOB V = 2.8V 1mA OUTB OUTB ° 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 Input Voltage (V) Dropout Voltage LDOB V = 2.8V 200mA OUTB OUTB ° =25 ° C ° 2.5 2.55 2.6 2.65 2.7 2.75 2.8 2.85 2.9 Input Voltage (V) SC560 ° C 200 250 T =-40 ° ° 4.9 5.1 5.3 5.5 2.95 3 3.05 3.1 5 ...
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... Frequency (Hz) Output Noise vs. Load Current (Both LDOs 2.8V 3.7V OUT IN BYP T =85 ° =25 ° =-40 ° 100 150 Output Current (mA) Load Transient Response Falling Edge (Both LDOs 3.6V 2.8V IN OUT V OUT SC560 10000 200 250 6 ...
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... Feedback sense pin for LDOA — Connect this pin to an FBA external resistor divider to set V 5 GND Analog and digital ground Logic input — active HIGH enables both LDOs for the SC560A and 6 EN SC560C, or LDOA for all other variants. 7 BYP LDO bypass output — ...
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... Block Diagrams VIN VIN 2 5 GND EN 6 VIN VIN 2 5 GND ENB SC560A VREF UVLO O/T Power- ON Logic SC560B VREF UVLO O/T Power- ON Logic 7 BYP VIN 3 OUTA LDOA 4 FBA VIN 1 OUTB LDOB 8 FBB VIN 3 OUTA LDOA 4 FBA VIN 1 OUTB LDOB 8 FBB SC560 8 ...
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... Block Diagrams (continued) VIN VIN 2 VREF 5 GND Power VIN 2 VIN VREF 5 GND 6 EN Power- 4 ENB SC560C UVLO O/T ON Logic SC560 – Fixed Output Versions UVLO O/T ON Logic 7 PGOOD PGOOD Logic VIN 3 OUTA LDOA 4 FBA VIN 1 OUTB LDOB 8 FBB 7 BYP 8 PGOOD PGOOD Logic ...
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... Applications Information General Description The SC560 is a family of dual output linear regulator devices intended for applications where low dropout voltage, low supply current, and low output noise are critical. Each device provides a very simple, low cost solution for two separate regulated outputs. Very little PCB area is required due to the miniature package size and the need for only four external capacitors ...
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... ESR X5R or X7R capacitor to minimize noise and improve transient response. Note: Tantalum and Y5V capacitors are not recommended. The BYP pin on the SC560D and the fi xed output versions must have a minimum of 22nF connected to ground to meet all noise-sensitive requirements. Increasing the capacitance to 100nF will further improve PSRR and output noise ...
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... Applications Information (continued) Thermal Considerations Although each of the two LDOs in the SC560 can provide 300mA of output current, the maximum power dissipation in the device is restricted by the miniature package size. The graphs in Figure 3 and Figure 4 can be used as a guideline to determine whether the input voltage, output ...
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... While layout for linear devices is generally not as critical as for a switching application, careful attention to detail will ensure reliable operation. The diagram below illustrates proper layout of a circuit using the SC560A. • Attach the part to a large copper footprint, to enable better heat transfer from the device on PCBs where there are internal power and ground planes ...
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... PLANE C LxN e N bxN bbb DIMENSIONS INCHES MILLIMETERS DIM MIN NOM MAX MIN NOM - - A .018 .024 0. .000 .002 0.00 A2 (.006) (0.1524) b .006 .008 .010 0.15 0.20 D .059 BSC 1.50 BSC E .059 BSC 1.50 BSC e .016 BSC 0.40 BSC L 0.12 .014 0.16 0.30 0. aaa .004 0.10 bbb .004 0.10 SC560 MAX 0.60 0.05 0.25 0.40 14 ...
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... COMPANY'S MANUFACTURING GUIDELINES ARE MET. Contact Information DIM (Z) ( Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 www.semtech.com SC560 DIMENSIONS INCHES MILLIMETERS (.057) (1.45) .028 0.70 .016 0.40 .004 0.10 .008 0.20 .030 0.75 .087 2.20 ...