Datasheet Texas Instruments LM3152MHE-3.3/NOPB — 数据表

LM3151, LM3152, LM3153
www.ti.com SNVS562G – SEPTEMBER 2008 – REVISED MARCH 2011 LM3151/LM3152/LM3153 SIMPLE SWITCHER® CONTROLLER, High Input Voltage
Synchronous Step-Down
Check for Samples: LM3151, LM3152, LM3153 FEATURES DESCRIPTION The LM3151/2/3 SIMPLE SWITCHER Controller is an
easy to use and simplified step down power controller
capable of providing up to 12A of output current in a
typical application. Operating with an input voltage
range from 6V-42V, the LM3151/2/3 features a fixed
output voltage of 3.3V, and features switching
frequencies of 250 kHz, 500 kHz, and 750 kHz. The
synchronous architecture provides for highly efficient
designs. The LM3151/2/3 controller employs a
Constant On-Time (COT) architecture with a
proprietary Emulated Ripple Mode (ERM) control that
allows for the use of low ESR output capacitors,
which reduces overall solution size and output
voltage ripple. The Constant On-Time (COT)
regulation architecture allows for fast transient
response and requires no loop compensation, which
reduces external component count and reduces
design complexity. 1 234 PowerWiseв„ў Step-down Controller
6V to 42V Wide Input Voltage Range
Fixed Output Voltage of 3.3V …