UG-179 Datasheet, PDF (7/12 Pages) Analog Devices – Automatic PFM/PWM mode switching

Evaluation Board User Guide
UG-179
DEMONSTRATION BOARD SCHEMATICS AND BILL OF MATERIALS
ADP2300 SCHEMATIC AND BILL OF MATERIALS
J2
VOUT
L1
10µH
C4
C3
NC 22µF
J4
GND
D1
B230A
C1
0.1µF
U1
1 BST
SW 6
R2
31.6kΩ
R4
10.2kΩ
2 GND VIN 5
3 FB
EN 4
ADP2300
(700kHz)
R1
10kΩ
R3
1.8kΩ
1 ^J5
2
3
EN
C2
10µF
Figure 14. ADP2300 Demonstration Board Schematic
J1
VIN
J3
GND
Table 2. ADP2300 Demonstration Board Bill of Materials
Qty Reference Designator Description
1 C1
Capacitor, 0.1 μF, 25 V, 0603, X7R
1 C2
Capacitor, 10 μF, 25 V, 1206, X5R
1 C3
Capacitor, 22 μF, 6.3 V, 1206, X5R
1 C4
No assembly
1 D1
Schottky diode, 2 A, 30 V, SMA
4 J1, J2, J3, J4
Header, 1 × 2, 0.1 pitch
1 J5
Header, 1 × 3, 0.1 pitch
1 L1
Shielded power inductor, 10 μH, 2.1 A
1 R1
Resistor, 10 kΩ, 1%, 0603
1 R2
Resistor, 31.6 kΩ, 1%, 0603
1 R3
Resistor, 1.8 kΩ, 1%, 0603
1 R4
Resistor, 10.2 kΩ, 1%, 0603
1 U1
1.2 A, 20 V, 700 kHz nonsynchronous step-down
switching regulator
1 _{N/A is not applicable.}
Manufacturer
Murata
Murata
Murata
N/A¹
Diodes, Inc.
Harwin
Harwin
Coilcraft, Inc.
Vishay
Vishay
Vishay
Vishay
Analog Devices, Inc.
Part Number
GRM188R71E104KA01
GRM31CR61E106KA12
GRM31CR60J226KE19
N/A¹
B230A
M20-9990246
M20-9990346
LPS6225-103MLC
CRCW060310K0FKEA
CRCW060331K6FKEA
CRCW06031K80FKEA
CRCW060310K2FKEA
ADP2300
Rev. 0 | Page 7 of 12