Description
The SC4607 is a voltage mode step down (buck) regulator controller that provides accurate high efficiency power conversion from an input supply range of 2.25V to 5.5V. The SC4607 is capable of producing an output voltage as low as 0.5V and has a maximum duty cycle of 97%. A high level of integration reduces external component count, and makes it suitable for low voltage applications where cost, size, and efficiency are critical.

FEATUREs
‹Asynchronous start up
BiCMOS voltage mode PWM controller
Operation of frequency to 1MHz
2.25V to 5.5V input voltage range
Output voltages as low as 0.5V
+/-1% reference accuracy
Sleep mode (Icc = 10µA typ)
Adjustable lossless short circuit current limiting
Combination pulse by pulse & hiccup mode current limit
High efficiency synchronous switching
Up to 97% duty cycle
1A peak current driver
10-pin MSOP package