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22
DEMOBOARD INFORMATIONS
Figure 20. Demoboard Schematic
COMPONENTS SELECTION
Inductor Selection
The inductance of the inductor is determined by given peak−to−peak ripple current I
L_PP
of approximately 20% to 50% of
the maximum output current I
OUT_MAX
for a trade−off between transient response and output ripple. The inductance
corresponding to the given current ripple is:
L +
ǒ
V
IN
* V
OUT
Ǔ
@ V
OUT
V
IN
@ f
SW
@ I
L_PP
The selected inductor must have high enough saturation current rating to be higher than the maximum peak current that is
I
L_MAX
+ I
OUT_MAX
)
I
L_PP
2
The inductor also needs to have high enough current rating based on temperature rise concern. Low DCR is good for
efficiency improvement and temperature rise reduction. Table 39 shows recommended.
NCP6915
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Table 39. INDUCTOR SELECTION
Supplier Part Value (mH) Size (mm) DC Rated Current (A) DCR Max at 25°C (mW)
TOKO
DFE201610R-H-1R0N
1 2.0x1.6 mm 2.2 48
TOKO
MDT2012-CLR1R0AM
1 2.0x1.2 mm 2.15 80
Murata LQM21PN1R0NGR 1 2.0x1.2 mm 1.3 66
Murata LQM2MPN1R0NG0 1 2.0x1.6 mm 1.4 85
Cyntec PIFE2016T-1R0 1 2.0x1.6 mm 2 80
Table 40. BOARD COMPONENTS DESCRIPTION
Quantity Reference schem Part description Part number Manufacturer
1 B1 HEADER200 4 SL 5.08/4/90B Weidmuller
1 B2 HEADER200_12 2.54 mm, 77313-101-06LF FC
3 C1,C3,C5 100uF GRM31CR60J107ME39# Murata
2 C7,C8 2.2uF GRM188R60J225KE19# Murata
2 C9,C11 10uF GRM188R60J106ME47# Murata
1 C10 100nF GRM033C801J104KE84B Murata
5 C12,C13,C14,C15,C16 1uF GRM155R70J105KA12# Murata
2 GND2,GND GND JUMPER D3082F05 Harvin
1 J1 CON26A N2526-5002RB 3M
1 L1 1uH
DFE201610R-H-1R0N
Toko
1 Q3 Nmos BSS138LT1 ON Semiconductor
1 Q4 Nmos NTD4969NT4G ON Semiconductor
2 R1,R2 50 Ohms FC0603E50R0BTBST1 Vishay
4 S1,S2,S3,S11 STRAP 2pins 77311-401-36LF FCI
1 TP2 HWEN 77311-401-36LF FCI
1 S12 LOGIC_SUPPLY 77311-401-36LF FCI
1 TP1 VBAT 77311-401-36LF FCI
1 TP3 SDA 77311-401-36LF FCI
1 TP4 SCL 77311-401-36LF FCI
1 TP5 VIN1 77311-401-36LF FCI
1 TP6 VIN2 77311-401-36LF FCI
1 TP7 DCDC_VOUT 77311-401-36LF FCI
1 TP8 VOUT1 77311-401-36LF FCI
1 TP9 VOUT2 77311-401-36LF FCI
1 TP10 VOUT3 77311-401-36LF FCI
1 TP11 VOUT4 77311-401-36LF FCI
1 TP12 VOUT5 77311-401-36LF FCI
1 TP13 FB1 77311-401-36LF FCI
1 TP14 SMB4 77311-401-36LF FCI
1 TP15 SMB3 77311-401-36LF FCI
1 U1 PMIC NCP6915 ON Semiconductor
ORDERING INFORMATION
Device Marking Package Shipping
NCP6915AFCCLT1G 6915A WLCSP 1.56x1.56 mm
(Pb−Free)
3000 / Tape & Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NCP6915
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24
PACKAGE DIMENSIONS
WLCSP16, 1.56x1.56
CASE 567GF
ISSUE D
SEATING
PLANE
0.10 C
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. COPLANARITY APPLIES TO SPHERICAL
CROWNS OF SOLDER BALLS.
2X
DIM
A
MIN MAX
−−−
MILLIMETERS
A1
D 1.56 BSC
E
b 0.24 0.29
e 0.40 BSC
0.60
D
E
A
B
PIN A1
REFERENCE
e
A0.05 BC
0.03
C
0.05 C
16X
b
4
C
B
A
0.10 C
A
A1
A2
C
0.17 0.23
1.56 BSC
0.25
16X
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
0.40
0.40
0.10 C
2X
TOP VIEW
SIDE VIEW
BOTTOM VIEW
NOTE 3
e
RECOMMENDED
PACKAGE
OUTLINE
123
PITCH
D
PITCH
A1
A2 0.33 0.39
DETAIL A
e/2
e/2
A3
DETAIL A
A2
A3
0.04 BSC
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limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications
and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC
does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for
surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where
personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly,
any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture
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P
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Phone: 81−3−5817−1050
NCP6915/D
LITERATURE FULFILLMENT:
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NCP6915AFCCLT1G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators USR 1DCDC 5LDO
Lifecycle:
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