LMZ10503EXT Application Circuit Schematic and BOMs

This section provides several application solutions with an

associated bill of materials. The compensation for each solu-

tion was optimized to work over the full input range. Many

applications have a fixed input voltage rail. It is possible to

modify the compensation to obtain a faster transient response

for a given input voltage operating point.

30118254

FIGURE 2.

TABLE 3. Bill of Materials, V

Capacitance

Designator

Description

Case Size

Manufacturer

Manufacturer P/N

Quantity

U1

SIMPLE SWITCHER ®

TO-PMOD-7

National

Semiconductor

LMZ10503EXTTZ

1

C

in1

150 µF, 6.3V, 18 m

Ω

C2, 6.0 x 3.2 x 1.8 mm

Sanyo

6TPE150MIC2

1

C

O1

330 µF, 6.3V, 18 m

Ω

D3L, 7.3 x 4.3 x 2.8 mm

Sanyo

6TPE330MIL

1

R

fbt

100 k

Ω

0603

Vishay Dale

CRCW0603100KFKEA

1

R

fbb

47.5 k

Ω

0603

Vishay Dale

CRCW060347K5FKEA

1

R

comp

15 k

Ω

0603

Vishay Dale

CRCW060315K0FKEA

1

C

comp

330 pF, ±5%, C0G, 50V

0603

TDK

C1608C0G1H331J

1

C

SS

10 nF, ±10%, X7R, 16V

0603

Murata

GRM188R71C103KA01

1

TABLE 4. Bill of Materials, V

Designator

Description

Case Size

Manufacturer

Manufacturer P/N

Quantity

U1

SIMPLE SWITCHER ®

TO-PMOD-7

National

Semiconductor

LMZ10503EXTTZ

1

C

47 µF, X5R, 6.3V

1206

TDK

C3216X5R0J476M

2

R

fbt

110 k

Ω

0402

Vishay Dale

CRCW0402100KFKED

1

R

comp

1.0 k

Ω

0402

Vishay Dale

CRCW04021K00FKED

1

C

comp

27 pF, ±5%, C0G, 50V

0402

Murata

GRM1555C1H270JZ01

1

C

SS

10 nF, ±10%, X7R, 16V

0402

Murata

GRM155R71C103KA01

1

In the case where the output voltage is 0.8V, it is recommended to remove R

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