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TMI3258/TMI3258B

600kHz, 18V, 3.0A Synchronous Step-Down Converter
零售价
0.0
市场价
0.0
浏览量:
1000
产品编号
VIN Range (V):
4.5 to 18
IOUT (A):
3
Switching Frequency (Hz):
600k
VFB (V):
0.807/ 0.798
Iq(μA):
300
HSFET Rds(on) (Ω):
0.07
LSFET Rds(on) (Ω):
0.035
Control Mode:
COT
Functions:
PFM/ Fast Response
Package:
SOT563
Status:
MP
数量
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库存:
0
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FEATURES
参数
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION

. High Efficiency: Up to 93%(@3.3V)

. 600kHz Frequency Operation

. Up to 3.0A Output Current

. Low RDS(ON) for internal switches: 70mΩ/35mΩ(top/bottom)

. 4.5V to 18V Input Voltage Range

. 0.807V Reference

. Current mode COT control to achieve fast   transient responses

. Integrated internal compensation

. Stable with Low ESR Ceramic Output Capacitors

. Over Current Protection with Hiccup Mode

. Thermal Shutdown

. Inrush Current Limit and Soft Start

. Available in SOT563 Package

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The TMI3258 is a high efficiency 600kHz current mode constant on-time (CM-COT) control mode synchronous step-down DC-DC converter capable of delivering 3A current. TMI3258 integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor size are achieved with 600kHz switching frequency. It adopts the CM-COT architecture to achieve fast transient responses for high voltage step down applications.

The TMI3258 requires a minimum number of readily available standard external components and is available in a space saving 6-pin SOT563 ROHS compliant package.

. Digital Set Top Boxes

. Flat Panel Television and Monitors

. Notebook computer

. Wireless and DSL Modems

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2020-09-16 16:28:21
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