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STI9287

零售价
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1000
产品编号
Vin Range (V):
2.7 to 24
Vout OVP (A):
30
Isw_Limit (A):
1.7
Switching Frequency (Hz):
1.0M
VFB (V):
0.2
Iq (μA):
20
LSFET Rds(on) (Ω):
0.2
Control Mode:
CM
Functions:
Non-sync.Boost
Package:
SOT23-6
Status:
MP
数量
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FEATURES
参数
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION
High Efficiency: Up to 90%
1.0MHz Constant Frequency Operation
Integrated Power MOSFET
Drives up to 7 Series WLEDs
202mV VFB Voltage with EN/PWM Pulling High
Soft-start/Dimming with wide PWM Frequency Range
UVLO, Thermal Shutdown
Internal Current limit
Over Voltage Protection
Small LC Filter Components
Minimize the External Component
<1µA Shutdown Current
SOT23-6 Package
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The STI9287 is a step-up converter designed for driving up to 7 series white LED's from a single cell Lithium Ion battery. The STI9287 uses current mode, fixed frequency architecture to regulate an LED current, which is measured through an external current sense resistor. Its low 202mV feedback voltage with EN/PWM Pulling High reduces power loss and improves efficiency.
 
The STI9287 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.
 
Optimized operation frequency can meet the requirement of small LC filters value and low operation
current with high efficiency. Internal soft start function can reduce the inrush current. Tiny package type provides the best solution for PCB space saving and total BOM cost.
Camera Flash White LED
Mobile Phone, Smart Phone LED Backlight
PDA LED Back light
Digital Still Cameras
Camcorder

 

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