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 Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
Total Device
001 VB
Permissible Supply Voltage
Range
8
36
V
Linear Regulator VCC (200 mA)
101
VCCnom
Output Voltage
I(VCC) = -200...0 mA;
WD, WDC
4.75
3.135
5.00
3.30
5.25
3.465
V
V
WDA, WDB
102 I(VCC)
103 CVCC
104 VCCrip
Permissible Load Current
Min. Output Capacity for Stability
Residual Ripple
-200
4.7
0
mA
µF
Evaluation Board (see Fig. 8), Tj = 27 °C:
I(VCC) = -200 mA, I(VCCA) = -20 mA
35
mVss
Linear Regulator VCCA (25 mA)
201
VCCAnom Output Voltage
I(VCCA) = -25...0 mA;
WD, WDB
4.75
3.135
5.00
3.30
5.25
3.465
V
V
WDA, WDC
202 I(VCCA)
203 CVCCA
Permissible Load Current
Min. Output Capacity for Stability
Residual Ripple
-25
1
0
mA
µF
204 VCCArip
Evaluation Board (see Fig. 8), Tj = 27 °C:
I(VCC) = -200 mA, I(VCCA) = -20 mA
30
mVss
Switching Regulator VB, VBR, VHL, VH
301
I0(VB)
Quiescent Current in VB
I(VCC) = 0, I(VCCA) = 0, Tj = 25 °C;
VB = 12 V
VB = 24 V
VB = 30 V
4.5
3.0
2.5
mA
mA
mA
302
I(VB)
Current in VB with partial load
I(VCC) + I(VCCA) = -100 mA, Tj = 25 °C,
WD, WDB, WDC;
VB = 12 V
VB = 24 V
72
37
30
mA
mA
mA
VB = 30 V
303
304
I(VB)
I(VB)
Current in VB with partial load
Current in VB with full load
I(VCC) + I(VCCA) = -100 mA, Tj = 25 °C, WDA;
VB = 12 V
VB = 24 V
VB = 30 V
61
33
24
mA
mA
mA
I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C,
WD, WDB, WDC;
VB = 12 V
VB = 24 V
132
69
55
mA
mA
mA
VB = 30 V
305
I(VB)
Current in VB with full load
Charging Capacitor at VH
I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C, WDA;
VB = 12 V
VB = 24 V
VB = 30 V
116
62
43
mA
mA
mA
306 CVH
4.7
µF
307 R(CVH
)
Series Resistance of CVH for
stability
12
Ω
308 f0(VHL)
Switching Frequency with no load I(VCC) = 0, I(VCCA) = 0
20
60
kHz
309
fl(VHL)
Switching Frequency with load
I(VCC) + I(VCCA) = -200 mA
Tj = 27 °C
120
7.5
5.8
kHz
kHz
90
7
310
V0(VH)
No-load Voltage VH
WD, WDB, WDC;
I(VCC) = 0, I(VCCA) = 0, VB = 36 V
Tj = 27 °C
V
V
311
312
V0(VH)
Vl(VH)
No-load Voltage VH
Voltage VH with load
WDA;
I(VCC) = 0, I(VCCA) = 0, VB = 36 V
Tj = 27 °C
V
V
5.4
6.3
WD, WDB, WDC;
I(VCC) + I(VCCA) = -200 mA, VB = 8 V
Tj = 27 °C
6
V
V
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