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TMI5101

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Product serial number
Vin Range (V):
2.5 to 5.5
Iout (A):
1
Switching Frequency (Hz):
1.5M
VFB (mV):
100
Iq (μA):
50
HSFET Rds(on) (Ω):
0.29
LSFET Rds(on) (Ω):
0.18
Control Mode:
CM
Functions:
PFM
Package:
SOT23-5
Status:
MP
Quantity
-
+
Stock:
FEATURES
Parameters
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION

• 1.5MHz Constant Frequency Operation
• 1.0A Output Current
• No Schottky Diode Required
• 2.5V to 5.5V Input Voltage Range
• Feedback Voltage as Low as 0.1V
• 100%Duty Cycle in Dropout
• Low Quiescent Current:50µA
• Short Circuit Protection
• Thermal Fault Protection
• Input over voltage protection(OVP)
• <1µA Shutdown Current
• SOT23-5 Package

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The TMI5101 is a constant frequency,current mode PWM step-down LED driver with 1A output current and 1.5MHz switch frequency.The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode.This device offers two operation modes,PWM control and PFM Mode switching control,which allows a high efficiency over the wider range of the LED current.The feedback voltage is 0.1V typically.The device also integrates many protection features includedinput OVP,cycle-by-cycle current limit,over temperature protection.

• LED Drivers

Figure 1.Typical Application Circuits

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2020-09-14 16:13:55
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