iC-WD
A/B/C
SWITCHED-MODE DUAL VOLTAGE REGULATOR
Rev D1, Page 4/12
ELECTRICAL CHARACTERISTICS
Operating Conditions: VB = 8...36 V, LVH = 220 µH, Ri(LVH)
<
2
Ω,
CVH = 4.7 µF, RVB = 1
Ω,
Tj = -40...125 °C, unless otherwise noted
Item
No.
001
Symbol
Parameter
Conditions
Min.
VB
Permissible Supply Voltage
Range
I(VCC) = -200...0 mA;
WD, WDC
WDA, WDB
8
Typ.
Max.
36
V
Unit
Total Device
Linear Regulator VCC (200 mA)
101 VCC
nom
Output Voltage
4.75
3.135
-200
4.7
5.00
3.30
5.25
3.465
0
V
V
mA
µF
mVss
102
103
104
I(VCC)
C
VCC
VCC
rip
Permissible Load Current
Min. Output Capacity for Stability
Residual Ripple
Evaluation Board (see Fig. 8), Tj = 27 °C:
I(VCC) = -200 mA, I(VCCA) = -20 mA
I(VCCA) = -25...0 mA;
WD, WDB
WDA, WDC
35
Linear Regulator VCCA (25 mA)
201 VCCA
nom
Output Voltage
4.75
3.135
-25
1
5.00
3.30
5.25
3.465
0
V
V
mA
µF
mVss
202
203
204
I(VCCA)
C
VCCA
VCCA
rip
Permissible Load Current
Min. Output Capacity for Stability
Residual Ripple
Evaluation Board (see Fig. 8), Tj = 27 °C:
I(VCC) = -200 mA, I(VCCA) = -20 mA
I(VCC) = 0, I(VCCA) = 0, Tj = 25 °C;
VB = 12 V
VB = 24 V
VB = 30 V
I(VCC) + I(VCCA) = -100 mA, Tj = 25 °C,
WD, WDB, WDC;
VB = 12 V
VB = 24 V
VB = 30 V
I(VCC) + I(VCCA) = -100 mA, Tj = 25 °C,
WDA;
VB = 12 V
VB = 24 V
VB = 30 V
I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C,
WD, WDB, WDC;
VB = 12 V
VB = 24 V
VB = 30 V
I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C,
WDA;
VB = 12 V
VB = 24 V
VB = 30 V
30
Switching Regulator VB, VBR, VHL, VH
301 I0(VB)
Quiescent Current in VB
4.5
3.0
2.5
mA
mA
mA
302
I(VB)
Current in VB with partial load
72
37
30
61
33
24
mA
mA
mA
mA
mA
mA
303
I(VB)
Current in VB with partial load
304
I(VB)
Current in VB with full load
132
69
55
116
62
43
4.7
12
20
60
90
7.5
7
5.8
5.4
6
6.3
120
mA
mA
mA
mA
mA
mA
µF
Ω
kHz
kHz
kHz
V
V
V
V
V
V
305
I(VB)
Current in VB with full load
306
307
308
309
310
C
VH
R(C
VH
)
f0(VHL)
fl(VHL)
V0(VH)
Charging Capacitor at VH
Series Resistance of C
VH
for
stability
Switching Frequency with no load I(VCC) = 0, I(VCCA) = 0
Switching Frequency with load
No-load Voltage VH
I(VCC) + I(VCCA) = -200 mA
Tj = 27 °C
WD, WDB, WDC;
I(VCC) = 0, I(VCCA) = 0, VB = 36 V
Tj = 27 °C
WDA;
I(VCC) = 0, I(VCCA) = 0, VB = 36 V
Tj = 27 °C
WD, WDB, WDC;
I(VCC) + I(VCCA) = -200 mA, VB = 8 V
Tj = 27 °C
311
V0(VH)
No-load Voltage VH
312
Vl(VH)
Voltage VH with load
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