NJU7630_12 Datasheet, PDF (1/9 Pages) New Japan Radio – PWM control Step-Down switching regulator IC

NJU7630
PWM control Step-Down switching regulator IC
■ GENERAL DESCRIPTION
The NJU7630 is a low voltage operation high-speed switching
regulator control IC for step-down converter, with PWM control.
It incorporates a totem pole output, which can drive an external
MOS-FET easily. The NJU7630 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. It is available in
8-lead DMP and MSOP (TVSP) packages. It is suitable for
battery powered applications.
■ PACKAGE OUTLINE
NJU7630M
(DMP8)
NJU7630RB1
(MSOP8 (TVSP8))
■ FEATURES
■ PRODUCT VARIATION
● PWM switching control
● Operating Voltage
● Wide Oscillator Range
● Maximum Duty Cycle
2.2V to 8V
300kHz to 1MHz
100%
NJU7631
PWM/PFM
Light Load to
Efficiency
NJU7632
Standby Function
● Quiescent Current
800µA typ.
● Soft-Start Function
Internal : 16ms typ. or adjustable
● Dead Time Control
● Timer Latch for Short Circuit Protection
● C-MOS Technology
NJU7630
PWM Control
Over Current Protection
NJU7640
Constant Current Control
NJU7650
● Package Outline
NJU7630M : DMP8
NJU7630RB1 : MSOP8 (TVSP8)*
*MEET JEDEC MO-187-DA / THIN TYPE
■ PIN CONFIGURATION
1
8
2
7
3
6
4
5
NJU7630M
NJU7630RB1
PIN FUNCTION
1. OUT
2. V⁺
3. FB
4. IN-
5. SCP
6. DTC
7. RT
8. GND
Ver.2012-08-03
-1-