Rainbow Electronics BD9300 - Manual (Page 2)

BD9300/F/FV
Regulators
2/2
zElectrical characteristics (Unless otherwise noted, Ta=25
°C, V
CC
=12V)
RT = 20k Ω , CT = 200pF 165
Min.
275
Max.
kHz
Unit Conditions
220
Typ. Parameter
Oscillating frequency
Iref = 1mA 2.475 2.525 V 2.500 Reference voltage Vref
fosc
− − V 2.8 UVLO threshold voltage V UT
Io = 30mA − 1.4 V 1.0 Saturation voltage (output) V SAT
2 − V − CTL ON threshold voltage V ON
−
0.7 V
−
CTL OFF threshould voltage V OFF
RT = VREF − 2.4 mA 1.2 Average current consumption I CC
Symbol
V CTL
= 0V − 10 µ A 0 Standby current I STB
zBlock diagram
GND N.C. OUT CT DTC RT FB
2.5V
NON
14
ERR
1.25V
TIMER
OSC
LATCH
1/2VREF
13
INV
12
VREF
11
CTL
VREF
PWM
10
SCP
9
V CC
8
7 6 5 4 3 2 1