Rainbow Electronics BD9718G - Manual (Page 2)

BD9718G
Regulators
2/2
!
! ! ! Electrical Characteristics (Unless otherwise noted, Ta=25 °C, V
CC
=5V)
Conditions Parameter
Output sense voltage
Switching frequency
Maxim ON duty cycle
Output SAT voltage 1
Output SAT voltage 2
− 5.00
Typ.
900
V CC -0.8
80
30
3.8
kHz
Unit
V
V
%
mV
V
Vs
Fosc
V UT
V SAT1
V SAT2
D ON
Symbol
I OUT
−= 20mA, Vs =− 5.5V
I OUT
+= 20mA, Vs =− 4.5V
V CC : sweep up
V FB
= 1.0V
V FB
= 0.75V
V FB
= 0.75V
− 5.05
Min.
70
3.5
V CC -1
600
−
− 4.95
Max.
Bias current 4.6 mA I CC V FB
= 1V − 8
1200
90
150
−
4.0 UVLO threshold voltage
!
! ! ! Application circuit
V CC
V S
V IN = 5V V O =− 5V (300mA)
FB
GND
OUT