LN5058 - natlinear

LN5058 PWM/PFM control DC-DC Synchronous Step-Down Converter

The LN5058 is a current mode monolithic buck switching regulator. Operating with an input range of 2.5V-6.2V, the LN5058 delivers 1.5A of continuous output current with integrated P-Channel and N-Channel MOSFETs. The internal synchronous power switches provide high efficiency. At light loads, the regulator operate in low frequency to maintain high efficiency.

Features

 1.5MHz switching frequency
 Up to 1.5A output current
 Up to 95% peak efficiency
 2.5V to 6.2V operating input range
 can reach 100% duty cycle
 PWM automatic/PFM switching duty cycle adjustable to maintain a large load range of high efficiency, low ripple
 Short circuit protection
 SOT-23-5L
■ Typical Application Circuit VIN CIN 10uF GND VIN LX LN5058 L 2.2uH CE FB GND R1 200K 1% R2 100K 1% C1 22pF opt. VOUT=1.8V COUT 10uF GND
■ Ordering Information LN5058A①②③ Item ① ② ③ NO.: NL-QR-730-16 VER: 17C04 Symbol Description F Automatic switching mode PWM and PFM W Pure P.