DocID17785 Rev 3

3/22

STOD03A

Schematic

22

1

Schematic

Note:

All the above components refer to the typical application performance characteristics.

Operation of the device is not limited to the choice of these external components. Inductor

values ranging from 2.2 µH to 6.8 µH can be used together with the STOD03A. See

Section 7.1.1 for peak inductor current calculation.

Figure 1. Application schematic

L

2

C

MID

C

O2

C

REF

L

X2

V

O2

V

MID

PGND AGND

C

IN

L

X1

V

INA

V

INP

EN

S

WIRE

STOD03A

S-Wire

EN

L

2

C

MID

C

O2

C

REF

L

X2

V

O2

V

MID

PGND AGND

C

IN

L

X1

V

INA

V

INP

EN

S

WIRE

STOD03A

S-Wire

EN

Table 2. Typical external components

Component

Manufacturer

Part number

Value

Size

ABCO

LPF2807T-4R7M

4.7µH

2.8 x 2.8 x 0.7mm

(1)

ABCO

LPF3509T-4R7M

4.7µH

3.5 x 3.5 x 1.0mm

TDK

VLF4014AT-4R7M1R1

4.7µH

3.7 x 3.5 x 1.4mm

Murata

GRM21BR61E475KA12

4.7µF

0805

Murata

GRM21BR61E475KA12

4.7µF

0805

Murata

GRM21BR61E475KA12

4.7µF

0805

Murata

GRM155R60J105KE19

1µF

0402

1.

From - 5.0 V to -5.4 V, 200 mA load can be provided with inductor saturation current as a minimum of 1 A.