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SY7102
High Efficiency 1MHz, 2.5A Step Up Regulator
General Description
SY7102 is a high efficiency boost regulator targeted for general step-up applications. The device integrates a low RDS(0N) switch to minnimize the conduction loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 1MHz switching frequency.
Ordering Information
SY7102 □(□□)□ Temperature Code Package Code Optional Spec Code
Temperature Range: -40°C to 85°C
Ordering Number SY7102ABC
Package type SOT23-6
Note ----
Features
• Wide input range:2-6V • 1MHz switching frequency • Minimum on time: 100ns typical • Minimum off time: 100ns typical • Max output voltage: 6V • Low RDS(0N): 120mΩ • RoHS Compliant and Halogen Free • Compact package: SOT23-6
Applications
• Solar Battery Charger • Backup Battery
Typical Applications
Fig. 1 Typical Schematic Diagram
SY7102 Rev. 0.2
1
Pinout (top view)
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SY7102
SOT23-6
Top Mark:EXxyz (Device code: EX, x=year code, y=week code, z= lot number code)
`
Pin Name Pin Number
Pin Description
GND
2 Ground pin
LX 1 Inductor node. Connect an inductor between power input and LX pin.
FB 3 Feedback pin. Connect a resistor R1 between V and FB, and a
resistor R2 between FB and GND to program the output voltage:
VOUT=0.6V*(R1/R2+1). EN 4 Enable control. Pull high to turn on. Do not float.
VDD
5 IC power supply input
NC 6 No connection.
Absolute Maximum Ratings
EN, VDD, LX----------------------------------------------------------------------------------------------------------------------7V FB-------------------------- ------------------------------------------------------------------------------------------------------3.6V Power Dissipation, PD @ TA = 25°C, SOT23-6 -------------------------------------------------------------------------- 0.6W Package Thermal Resistance (Note 2)
SOT23-6, θJA ---------------------------------------------------------------------------------------------------- 200°C/W SOT23-6, θJC ---------------------------------------------------------------------------------------------------- 130°C/W Junction Temperature Range ----------------------------------------------------------------------------------------------- 125°C Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------------ 260°C
Storage Temperature Range ------------------------------------------------------------------------------------- -65°C to 150°C
Recommended Operating Conditions (Note 3)
VDD pin-------------------------- ----------------------------------------------------------------------------------------- 2V to 6V FB----------------------------------------------- ---------------------------------------------------------------------------- 0V to 1V Junction Temperature Range ------------------------------------------------------------------------------------ -40°C to 125°C
Ambient Temperature Range ---------.
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