GENERAL DESCRISSION The SS6640S is a high efficiency boost regulators targeted for general step-up applications.
3.0A Step-Up , 1M Hz , High Efficiency , Converter
The SS6640S is available in SOT23-6 packages.
FEATURES
z Wide input range: 2.0-16V bias input, 25Vout max z 1MHz switching frequency z z
0.6V Feedback Voltage
Minimum off time: 100ns typical
z z z
Low Rdson: 0.12ohm
RoHS Compliant and Halogen Free
SOT23-6 Package
APPLICATIONS z Cell Phones z Digital Cameras z Handheld Computers and PDAs z LCD Displays / WLED Driver TYPICAL APPLICATIONS PIN ASSIGNMENT
Figure 1. Typical Schematic Diagram
PIN DESCRISSION SOT PIN Pin No. NAMES
1 3
LX FB
2 GND Ground
Feedback input pin. FB=0.6V
DESCRISSION
Power Switch Output. Connect the inductor and the blocking Schottky diode to LX.
4 EN Enable control, High to turn on the part , don’t leave it floated ,
Input pins. Decouple this pin to GND pin with 1uF ceramic cap. 5/6 IN ORDERING INFORMATION
PACKAGE
TEMPERATURE
RANGE
ORDERING PART
NUMBER SS6640STR
TRANSPORT MEDIA Tape and Reel 3000 units
SOT23-6 -40 oC to 85 oC
SS6640S Rev 1_3 Page 1 Senior Semiconductor Manufacturing Limited
SS6640S Pb-free
TYPICAL PERFORMANCE CHARACTERISTICS
3.0A Step-Up , 1M Hz , High Efficiency , Converter
ABSOLUTE MAXIMUM RATINGS (Note 1)
SYMBOL
IN
ITEMS
Input Voltage Voltage at LX Pin Voltage at EN Pin All Other I/O Pins Power Dissipation
Thermal Resistance，SOT-23-6, ΘJA
VALUE -0.3～18 -0.5～26 16 6 220
-55 to 150 260℃, 10s
2
UNIT V V V V ℃/W ℃ kV
LX EN VIO PDMAX SSR1
0.4 W
Tstg Storage Temperature
Tsolder Package Lead Soldering Temperature
ESD Suscessibility (Note 3)
RECOMMANDED OPERATING RANGE (Note 1)
SYMBOL
IN TOSS
ITEMS
VIN Supply Voltage Operating Temperature
VALUE 2 to 16 VIN to25 -40 to +85
UNIT V V ℃
LX Output Voltage
SS6640S Rev 1_3 Page 2 Senior Semiconductor Manufacturing Limited
SS6640S Pb-free
ELECTRICAL CHARACTERISTICS
The following specifications apply for VIN= VEN =3.6V TA=25 oC, unless specified otherwise. SYMBOL ITEMS
CONDITIONS
VEN =0, VLX =20V
Min. 2 Typ. Max.
UNIT
3.0A Step-Up , 1M Hz , High Efficiency , Converter
IN Input Voltage
FB
16 V FB Pin Voltage
LX Pin leakage Current Operating Current（Shutdown）
588 600 612 mV
1
µA
Isw Ioff Isby VEN_H VEN_L ILIMIT
VIN,UVLO
0.1 1 µA 100 µA 0.8 1. 1.2 MHz 1.5 3.0
0.4 4.0
V V A
VFB0.5V Operating Current（Quiescent） =EN Minimum High Level EN Maximum Low Level SW Current Limit
IN UVLO rising Threshold
Fsw Switching Frequency
RON SW On Resistance 0.10 0.15 Ω
2.7 V Note 1: Typical parameters are measured at 25˚C and represent the parametric norm.
Note2: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.
TYPICAL APPLICATIONS
1、 Vin=3.0V , Vout=5.0V I out=1.5A
SS6640S Rev 1_3 Page 3 Senior Semiconductor Manufacturing Limited
SS6640S Pb-free
2、 Vin=12V , Vout=13V/18V I out=0.8A
3.0A Step-Up , 1M Hz , High Efficiency , Converter
SS6640S Rev 1_3 Page 4 Senior Semiconductor Manufacturing Limited
SS6640S Pb-free
PACKAGE INFORMATION
3.0A Step-Up , 1M Hz , High Efficiency , Converter
SOT23-6
SYMBOL
MILLIMETERS MIN
MAX
INCHES MIN
MAX
A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.400 0.012 0.016 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950TYP 0.037TYP e1 1.800 2.000 0.071 0.079 L 0.700REF 0.028REF L1 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8°
SS6640S Rev 1_3 Page 5 Senior Semiconductor Manufacturing Limited
因篇幅问题不能全部显示，请点此查看更多更全内容