NJU7640 - JRC

NJU7640 Step-Down switching regulator IC

The NJU7640 is a low voltage operation high-speed switching regulator control IC for step-down converter, with a pulse-by-pulse over-current protection. The pulse-by-pulse over-current protection circuit can limit the over current in switching operation. It incorporates a totem pole output, which can drive an external MOS-FET easily. It also has a soft-start.

Features

● PWM switching control
● Pulse-by-pulse over current protection
● Operating Voltage 2.2V to 8V
● Wide Oscillator Range 300kHz to 1MHz
● Maximum Duty Cycle 100%
● Quiescent Current 800µA typ.
● Soft-Start Function Internal : 16ms typ. or adjustable
● Dead Time Control
● C-MOS Technology
● Package Outline NJU7640RB1 : MSOP8 (TVSP8)
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*MEET JEDEC MO-187-DA / THIN TYPE
■ PACKAGE OUTLINE NJU7640RB1 (MSOP8 (TVSP8))
■ PRODUCT VARIATION NJU7650 Constant Current Control NJU7640 Over Current Protection NJU7630 PWM Control
■ PIN CONFIGURATION 1 2 3 4 NJU7640RB1 8 7 6 5 PIN FUNCTION 1..