Datasheet Linear Technology LT1959IR#PBF — 数据表

LT1959
4.5A, 500kHz Step-Down
Switching Regulator
U FEATURES
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■ DESCRIPTIO The LT ®1959 is a 500kHz monolithic buck mode switching
regulator functionally identical to the LT1506 but optimized
for lower output voltage applications. It will operate down
to 1.21V output compared to 2.42V for the LT1506. A 4.5A
switch is included on the die along with all the necessary
oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast
transient response and good loop stability. Operates with Input as Low as 4V
Output Range Down to 1.21V
Constant 500kHz Switching Frequency …