Circuit configuration 1 for QFN48 (QFAA)

nRF54LS05A | nRF54LS05B Preliminary Datasheet

This circuit configuration uses an external supply on VDD and has the DC/DC converter enabled.

Figure 1. Circuit configuration 1 schematic
Schematic of circuit configuration 1 for nRF54LS05B-QFAA
Table 1. Bill of material for circuit configuration 1
Designator Value Description Footprint
C1 10 µF Capacitor, X6S, ±20%, 6.3 V 0402
C2 100 nF Capacitor, X7R, ±10%, 10 V 0201
C3, C4, C5 2.2 µF Capacitor, X6T, ±20%, 2.5 V 0201
C6, C7, C8 1.5 pF Capacitor, NP0, ±0.05 pF, 25 V, high Q 0201
FB1 120 Ω Ferrite bead, 120 Ω at 100 MHz, 200 mA, 500 mΩ max 0201
L1 4.7 µH Inductor, 120 mA, ±20%, 650 mΩ 0603
L2, L3, L4 2.7 nH Inductor, 600 mA, ±0.1 nH, 120 mΩ 0201
U1 nRF54LS05B-QFAA Bluetooth® Low Energy and 2.4 GHz proprietary System on Chip QFN-48
X1 32 MHz Crystal SMD 2016, 32 MHz, Cl = 8 pF, Total tol: ±40 ppm. For frequency tolerance requirements, see 32 MHz crystal oscillator (HFXO). XTAL_2016
X2 32.768 kHz Crystal SMD 2012, 32.768 kHz, Cl = 9 pF, Total tol: ±20 ppm XTAL_2012