Obsolete

Product(s)

- Obsolete

Product(s)

21/26

L6995S

POWER SECTION

Notes: 1. N.M.=Not Mounted

with the integrator feature.

3. The diode efficiency impact is very low; it is not a necessary component.

4. All capacitors are intended ceramic type otherwise specified.

6.11.1Efficiency

Figure 21. Efficiency vs output current

Part name

Value

Dimension

Notes

C10

100nF

0603

C11

100nF

0603

DIODE

D1

BAR18

INPUT CAPACITORS

C7, C13

10

µF

C34Y5U1E106ZTE12 TOKIN

OUTPUT CAPACITORS

C14, C15

330

µF

EEFUE0D331R

PANASONIC

INDUCTOR

L1

2.7

µH

DO3316P-272HC

COILCRAFT

2.2

µH

ETQP6H2R2GF

PANASONIC

3.3

µHDQ7545

COEV

POWER MOS

Q1,Q2

STS8DNF3LL

STMicroelectronics

Dual MOSFETS in single package

DIODE

D2

STPS3L40U

STMicroelectronics

3

30

40

50

60

70

80

90

0,0

0,5

1 ,0

1,5

2,0

2,5

3,0

3,5

4,0

4,5

5,0

5 ,5

6, 0

Cu r r e n t [A]

Ef f [ %]

V in=20V V ou t=1.8V Fs w =270K hz PW M

V in=2 0V V out=1 .8V Fs w =2 70Khz PFM