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TMI3112H

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产品编号
Vin Range (V):
2.7 to 5.5
Iout (A):
2
Switching Frequency (Hz):
2.3M
VFB (V):
0.6
Iq(μA):
50
HSFET Rds(on) (Ω):
0.16
LSFET Rds(on) (Ω):
0.07
Control Mode:
CM
Functions:
"PFM/PWM/ High Frequency"
Package:
SOT23-5
Status:
MP
数量
-
+
库存:
0
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FEATURES
参数
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION
High Efficiency: Up to 95% (@3.3VOUT)
2.3MHz Co Frequency Operation
2A Output Current
No Schottky Diode Required
2.7V to 5.5V Input Voltage Range
Output Voltage as Low as 0.6V
PFM Mode for High Efficiency in Light Load
100% Duty Cycle in Dropout Operation
Low Quiescent Current: 40µA
Short Circuit Protection
Thermal Fault Protection
Inrush Current Limit and Soft Start
Input over voltage protection (OVP)
<1µA Shutdown Current
SOT23-5 Package
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The TMI3112H is a 2.3MHz constant frequency, current mode step-down converter. It is ideal for portable equipment requiring very high current up to 2A from single-cell Lithium-ion batteries while still achieving over 95% efficiency during peak load conditions with 5V input and 3.3V output application. The TMI3112H also can run at 100% duty cycle for low dropout operation, extending battery life in portable systems while light load operation provides very low output ripple for noise sensitive applications. The TMI3112H can supply up to 2A output load current from 2.7V to 5.5V input voltage and the output voltage can be regulated as low as 0.6V. The high switching frequency minimizes the size of external components while keeping switching losses low. The internal slope compensation setting allows the device to operate with smaller inductor values to optimize size and provide efficient operation. The TMI3112H is offered in a 5-pin, SOT package, and is available in an adjustable version.
This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load.
Set Top Box
Wireless and DSL Modems
PDAs
Portable Instruments
Digital Still and Video Cameras
PC Cards

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2022-10-25 11:03:29
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