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MB3878
ELECTRICAL CHARACTERISTICS
Parameter
Output voltage
Reference
Input stability
voltage block
Load stability
(Ref)
Short-circuit
output current
Threshold voltage
Under voltage
lockout protection
Hysteresis width
circuit block
(UVLO)
Threshold voltage
Hysteresis width
Soft-start block
Charge current
(SOFT)
Oscillation
Triangular
frequency
waveform
Frequency
oscillator circuit
temperature
block (OSC)
stability
Input offset
voltage
Input bias current
Common mode
input voltage
range
Error amplifier
Voltage gain
block
(Error Amp.1,
Frequency
Error Amp.2)
bandwidth
Output voltage
Output source
current
Output sink
current
* : Standard design value.
6
(Ta
25 C, VCC
Pin
Symbol
Conditions
No.
Ta
25 C
V
6
REF
Ta
30 C to 85 C
Line
6
VCC
7 V to 25 V
Load
6
VREF 0 mA to 1 mA
Ios
6
VREF
1 V
VCC
VCC (O) ,
V
18
TLH
VCC
VCC
VCC (O) ,
V
18
THL
VCC
V
18 VCC
VCC (O)
H
V
6
VREF
TLH
V
6
VREF
THL
V
6
V
V
H
H
TLH
I
22
CS
f
20 RT
47 k
OSC
f/fdt
20 Ta
30 C to 85 C
3, 4,
V
FB1
FB2
IO
8, 9
3, 4,
I
B
8, 9
3, 4,
V
CM
8, 9
A
5, 7 DC
V
B
5, 7 A
0 dB
W
V
V
5, 7
FBH
V
5, 7
FBL
I
5, 7 FB1
FB2
SOURCE
I
5, 7 FB1
FB2
SINK
19 V, VCC (O)
19 V, VREF
Value
Min
Typ
4.995
5.000
4.945
5.000
3
1
25
15
6.1
6.4
5.1
5.4
0.7
1.0
2.6
2.8
2.4
2.6
V
0.05
0.20
THL
1.3
0.8
260
290
1*
2 V
1
100
30
0
100*
2.0*
4.7
4.9
20
2 V
2.0
2 V
150
300
0 mA)
Unit
Max
5.045
V
5.055
V
10
mV
10
mV
5
mA
6.7
V
5.7
V
1.3
V
3.0
V
2.8
V
0.35
V
0.5
A
320
kHz
5
mV
nA
V
CC
V
1.8
dB
MHz
V
200
mV
0.6
mA
A
(Continued)
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