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TMI3257

800kHz, 18V, 2.0A Synchronous Step-Down Converter
Retail price
0.0
元
Market price
0.0
元
Number of views:
1000
Product serial number
VIN Range (V):
4.5 to 18
IOUT (A):
2
Switching Frequency (Hz):
800k
VFB (V):
0.807
Iq(μA):
300
HSFET Rds(on) (Ω):
0.09
LSFET Rds(on) (Ω):
0.045
Control Mode:
COT
Functions:
PFM / Fast Response
Package:
SOT563
Status:
MP
Quantity
-
+
Stock:
0
Category
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1
Honor
FEATURES
Parameters
GENERAL DESCRIPTION
APPLICATIONS
TYPICAL APPILCATION

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

. 800kHz Frequency Operation

. Up to 2.0A Output Current

. Low RDS(ON) for internal switches:90mΩ/45mΩ(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

We could not find any corresponding parameters, please add them to the properties table

The TMI3257 is a high efficiency 800kHz current mode constant on-time (CM-COT) control mode synchronous step-down DC-DC converter capable of delivering 2A current. TMI3257 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 800kHz switching frequency. It adopts the CM-COT architecture to achieve fast transient responses for high voltage step down applications.

The TMI3257 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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TMI3255T
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STI3482

Relevant documents

TMI3257_DS_EN_V1.1
TMI3257_DS_EN_V1.1
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File size:
241KB
Number of downloads:
77
2020-09-14 15:55:01
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