XC6371_1 Datasheet, PDF (8/18 Pages) Torex Semiconductor – PWM Controlled Step-Up DC/DC Controllers/Converters

XC6371/6372/6373 Series
■BLOCK DIAGRAMS
XC6371/72/73A, C
(The₍VOUT pin serve_ps also as VDD)
Lx
VLx limiter
Buffer
)
Soft Start
V re f
VDD
VSS
EXT
PWM Control
OSC 50/100/180KHz
Chip Enable
Phase comp
+
－
CE
Note: The CE pin is only used with the XC6371C.
XC6371/72/73E
Lx
VSS
EXT
VDD
VLx limiter
Buffer
Soft Start
V re f
PWM Control
OSC 50/100/180KHz
Phase comp
+
－
VOUT
VDD
VOUT
Note: Built-in transistor type units use the Lx pin.
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
VOUT Input Voltage
LX pin Voltage
LX pin Current
CE Input Voltage
Power Dissipation
SOT-89, 89-5
USP-6B
VDD Input Voltage
Operating Temperature Range
Storage Temperature Range
SYMBOL
VOUT
VLX
ILX
VCE
Pd
VDD
Topr
Tstg
RATINGS
12
12
400
12
500
100
12
-30~＋80
-40~＋125
Ta=25℃
UNITS
V
V
mA
V
mW
V
℃
℃
588