Datasheet

MAX8903A–E/G/H/J/N/Y
2A 1-Cell Li+ DC-DC Chargers
for USB and Adapter Power
25
Maxim Integrated
DC INPUT
VOLTAGE
RANGE
DC STEP-DOWN
OUTPUT
CURRENT LIMIT
(I
SDMAX
)
PART NUMBER,
SWITCHING
FREQUENCY*
RECOMMENDED INDUCTOR
9V ±10% 2A
MAX8903A/B/C/D/E,
4MHz
2.2µH inductor, DFE322512C-2R2N, TOKO
3.2mm x 2.5mm x 1.2mm, 91mΩ (max), 2.4A
or 2.2µH Inductor, IFSC1515AHER2R2M01, Vishay
3.8mm x 3.8mm x 1.8mm, 45mΩ (max), 3A
9V ±10% 1A
MAX8903A/B/C/D/E,
4MHz
2.2µH Inductor, IFSC1008ABER2R2M01, Vishay
2.5mm x 2mm x 1.2mm, 90mΩ (max), 2.15A
or 2.2µH Inductor, LQH3NPN2R2NJ0, Murata
3mm x 3mm x 1.1mm, 83mΩ (max), 1.15A
9V ±10% 2A MAX8903G, 1MHz
4.3uH Inductor, DEM4518C (1235AS-H-4R3M), TOKO
4.7mm x 4.5mm x 1.8mm, 84mΩ (max), 2.0A
or 4.7µH Inductor, IFSC1515AHER4R7M01, Vishay
3.8mm x 3.8mm x 1.8mm, 90mΩ (max), 2.0A
9V ±10% 1A MAX8903G, 1MHz
4.7µH inductor, DEM2818C (1227AS-H-4R7M), TOKO
3.2mm x 2.8mm x 1.8mm, 92mΩ (max), 1.1A
or 4.7µH inductor, IFSC1008ABER4R7M01, Vishay
2.5mm x 2mm x 1.2mm, 212mΩ (max), 1.2A
12V ±10% 2A MAX8903G, 1MHz
4.3µH inductor, DEM4518C (1235AS-H-4R3M), TOKO
4.7mm x 4.5mm x 1.8mm, 84mΩ (max), 2.0A
or 4.7µH inductor, IFSC1515AHER4R7M01, Vishay
3.8mm x 3.8mm x 1.8mm, 90mΩ (max), 2.0A
12V ±10% 1A MAX8903G, 1MHz
6.8µH, IFSC1515AHER6R8M01, Vishay
3.8mm x 3.8mm x 1.8mm, 115mΩ (max), 1.5A
or 6.8µH, LQH44PN6R8MP0, Murata
4mm x 4mm x 1.65mm, 144mΩ (max), 1.34A
Table 5. Recommended Inductor Examples (continued)
* See the Selector Guide for more information about part numbers.