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

Parameter

Conditions

Unit

No.

Min.

Typ.

Max.

Total Device

001

VB

Permissible Supply Voltage

Range

8

36

V

Linear Regulator VCC (200 mA)

101

Output Voltage

I(VCC) = -200...0 mA;

WD, WDC

4.75

5.00

5.25

V

WDA, WDB

3.135

3.30

3.465

V

102

I(VCC)

Permissible Load Current

-200

0

mA

103

Min. Output Capacity for Stability

4.7

µF

104

Residual Ripple

Evaluation Board (see Fig. 8), Tj = 27 °C:

I(VCC) = -200 mA, I(VCCA) = -20 mA

35

mVss

Linear Regulator VCCA (25 mA)

201

Output Voltage

I(VCCA) = -25...0 mA;

WD, WDB

4.75

5.00

5.25

V

WDA, WDC

3.135

3.30

3.465

V

202

I(VCCA)

Permissible Load Current

-25

0

mA

203

Min. Output Capacity for Stability

1

µF

204

Residual Ripple

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

4.5

mA

VB = 24 V

3.0

mA

VB = 30 V

2.5

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

72

mA

VB = 24 V

37

mA

VB = 30 V

30

mA

303

I(VB)

Current in VB with partial load

I(VCC) + I(VCCA) = -100 mA, Tj = 25 °C, WDA;

VB = 12 V

61

mA

VB = 24 V

33

mA

VB = 30 V

24

mA

304

I(VB)

Current in VB with full load

I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C,

WD, WDB, WDC;

VB = 12 V

132

mA

VB = 24 V

69

mA

VB = 30 V

55

mA

305

I(VB)

Current in VB with full load

I(VCC) + I(VCCA) = -200 mA, Tj = 25 °C, WDA;

VB = 12 V

116

mA

VB = 24 V

62

mA

VB = 30 V

43

mA

306

Charging Capacitor at VH

4.7

µF

307

stability

12

Ω

308

f0(VHL)

Switching Frequency with no load I(VCC) = 0, I(VCCA) = 0

20

kHz

309

fl(VHL)

Switching Frequency with load

I(VCC) + I(VCCA) = -200 mA

60

120

kHz

Tj = 27 °C

90

kHz

310

V0(VH)

No-load Voltage VH

WD, WDB, WDC;

I(VCC) = 0, I(VCCA) = 0, VB = 36 V

7.5

V

Tj = 27 °C

7

V

311

V0(VH)

No-load Voltage VH

WDA;

I(VCC) = 0, I(VCCA) = 0, VB = 36 V

5.8

V

Tj = 27 °C

5.4

V

312

Vl(VH)

Voltage VH with load

WD, WDB, WDC;

I(VCC) + I(VCCA) = -200 mA, VB = 8 V

6

V

Tj = 27 °C

6.3

V