NJU7632
Step-Down switching regulator IC with standby function
■ GENERAL DESCRIPTION The NJU7632 is a low voltage oper...
NJU7632
Step-Down switching
regulator IC with standby function
■ GENERAL DESCRIPTION The NJU7632 is a low voltage operation high-speed
switching
regulator control IC for step-down converter, with a standby function. It incorporates a totem pole output, which can drive an external MOS-FET easily. The NJU7632 also has a soft-start function, dead time control and timer latch for short circuit protection and their times are all adjustable with external parts. Further the internal standby function minimize the current during non-active condition. It is available in a small and thin 8-lead MSOP (TVSP) package, and it is suitable for battery powered applications.
■ PACKAGE OUTLINE
NJU7632RB1 (MSOP8 (TVSP8))
■ FEATURES
■ PRODUCT VARIATION
● PWM switching control
● Standby Function
NJU763x**
● Operating Voltage ● Wide Oscillator Range
2.2V to 8V 300kHz to 1MHz
Standby Terminal
● Maximum Duty Cycle
100%
NJU7632
● Quiescent Current ● Soft-Start Function
Operating :800µA typ. Standby :1µA max. Internal :16ms typ. or adjustable
Standby Function
NJU7630
● Dead Time Control ● Timer Latch for Short Circuit Protection
PWM Control
● C-MOS Technology
** Planning
● Package Outline
NJU7632RB1 : MSOP8 (TVSP8)*
*MEET JEDEC MO-187-DA / THIN TYPE
■ PIN CONFIGURATION
1 2 3 4
NJU7632RB1
8 7 6 5
PIN FUNCTION 1. OUT 2. V+ 3. FB 4. IN5. SCP 6. DTC 7. RT 8. GND
Ver.2012-08-03
-1-
NJU7632
■ BLOCK DIAGRAM
FB
IN-
1V Vref
V+
ER⋅AMP
Soft Start
Latch
UVLO
SCP
1V
2µA SCP
2k...