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MB3887
ELECTRICAL CHARACTERISTICS
Parameter
Output voltage
1.
Reference
Input stability
voltage block
Load stability
[REF]
Short-circuit output
current
Threshold voltage
2.
Under voltage
lockout protec-
Hysteresis width
tion circuit
block
Threshold voltage
[UVLO]
Hysteresis width
3.
Soft-start block
Charge current
[SOFT]
4.
Oscillation
Triangular
frequency
waveform os-
Frequency
cillator circuit
temperature
block
stability
[OSC]
Input offset voltage
Input bias current
In-phase input
voltage range
5-1.
Error amplifier
Voltage gain
block
Frequency
[Error Amp1,
bandwidth
Error Amp2]
Output voltage
Output source
current
Output sink current
* : Standard design value.
8
(Ta
25 C, VCC
Sym-
Pin
Conditions
bol
No.
V
6
Ta
25 C
REF1
V
6
Ta
10 C to 85 C
REF2
Line
6
VCC
8 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
H
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
BW
5, 7 AV
0 dB
V
5, 7
FBH
V
5, 7
FBL
I
5, 7 FB1
FB2
SOURCE
I
5, 7 FB1
FB2
SINK
19 V, VCC (O)
Value
Min
Typ
4.967
5.000
4.95
5.00
3
1
50
25
6.2
6.4
5.2
5.4
1.0*
2.6
2.8
2.4
2.6
0.2
14
10
260
290
1*
2 V
1
100
30
0
100*
2*
4.7
4.9
20
2 V
2
2 V
150
300
19 V, VREF
0 mA)
Unit
Max
5.041
V
5.05
V
10
mV
10
mV
12
mA
6.6
V
5.6
V
V
3.0
V
2.8
V
V
6
A
320
kHz
5
mV
nA
V
1.8
V
CC
dB
MHz
V
200
mV
1
mA
A
(Continued)
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