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NJU7632

JRC
Part Number NJU7632
Manufacturer JRC
Description Step-Down switching regulator IC
Published Jun 12, 2009
Detailed Description NJU7632 Step-Down switching regulator IC with standby function ■ GENERAL DESCRIPTION The NJU7632 is a low voltage oper...
Datasheet PDF File NJU7632 PDF File

NJU7632
NJU7632

Overview
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 2kΩ 1V 0.
5 RT A DTC 0.
8V 0.
2V OSC 0.
5V PW M Buffer OUT Standby ON/OFF RT RT V+ GND RP ON/OFF High: ON Low : OFF (Standby) -2- Ver.
2012-08-03 NJU7632 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Output Pin Current Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL V+ IO PD TOPR TSTG MAXIMUM RATINGS +9 ±50 MSOP8 (TVSP8) :320 -40 to +85 -40 to +125 (Ta=25°C) UNIT V mA mW °C °C ■ RECOMMENDED OPERATING CONDITIONS PARAMETER Operating Voltage Oscil...


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