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PDF NJU7640 Data sheet ( Hoja de datos )
| Número de pieza | NJU7640 | |
| Descripción | Switching Regulator IC / TVSP8 | |
| Fabricantes | JRC | |
| Logotipo |  |
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NJU7640
Step-Down switching regulator IC with Over Current Protection
■GENERAL DESCRIPTION
NJU7640 is a high speed low voltage operation switching
regulator control IC with over current protection. It features a totem
pole driver that can directly drive an external MOS-FET.
It includes pulse-by-pulse over current protection to limit switching
current.
■PACKAGE OUTLINE
NJU7640RB1
■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
● Soft-Start Function
800µA typ.
Internal : 16ms typ. or adjustable
● Dead Time Control
● C-MOS Technology
● Package Outline
NJU7640RB1 : TVSP8
■PRODUCT VARIATION
NJU7650
Constant Current Control
NJU7640
Over Current Protection
NJU7630
PWM Control
■PIN CONFIGURATION
18
27
36
45
NJU7640RB1
PIN FUNCTION
1. OUT
2. V+
3. FB
4. IN-
5. SENSE
6. DTC
7. RT
8. GND
Ver.2006-07-11
-1-
1 page  
www.DataSheet4U.com
■ TYPICALAPPLICATIONS
Step-Down Converter
RSC
VIN
CIN
C
FET
L
SBD
COUT
NJU7640
1 OUT GND 8
2 V+
RT 7
3 FB
DTC 6
CNF
RNF 4 IN- SENSE 5
RT
RDTC
CS
NJU7640
VOUT
R2
R1
Ver.2006-07-11
-5-
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet NJU7640.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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