1.
3MHz Step-Up Switching
Regulator with 1.
4A Switch
POWER MANAGEMENT Description
The SC4503 is a 1.
3MHz current-mode step-up switching
regulator with an integrated 1.
4A power
transistor.
Its high switching frequency allows the use of tiny surface-mount external passive components.
The SC4503 features a combined shutdown and soft-start pin.
The optional soft-start function eliminates high input current and output overshoot during start-up.
The internal compensation network accommodates a wide range of voltage conversion ratios.
The internal switch is rated at 34V www.
DataSheet4U.
com making the device suitable for high voltage applications such as Boost and SEPIC.
The SC4503 is available in lo...