Datasheet

Analog Integrated Circuit Device Data
143 Freescale Semiconductor
MC34708
Typical Applications
8.2 Bill of Material
The following table provides a complete list of the recommended components on a full featured system using the MC34708
Device. Critical components such as inductors, transistors, and diodes are provided with a recommended part number, but
equivalent components may be used.
Table 161. MC34708 Bill of Material
(83)
Item
Quantity Component Description Vendor Comments
1 1
MC34708 Freescale PMIC
Battery Interface
2 1 C1
10 F TDK Battery Filter
3 2 R1
20 mOhm Battery Sense (Optional for battery current sensing)
4 1 C2
10 F BP/ buck charging capacitor
5 1 C67
1 uF VBUS 1 uF input cap
6 1 D2
Green LED Green general purpose LED indicator
7 1 D1
Red LED Red General purpose LED indicator
Miscellaneous
8 1 C56
1.0 F VALWAYS
9 1 C43
100 nF VSRTC
10 1 C50
1.0 F VCORE
11 1 C51
1.0 F VCOREDIG
12 1 C52
100 pF VDDLP
13 1 C49
100 nF VCOREREF
14 1 C46
100 nF Coin cell
15 1 Y1
Crystal 32.768 kHz CC7 Oscillator
16 1 C44
18 pF Oscillator load capacitor
17 1 C45
18 pF Oscillator load capacitor
18 2 R3, R4
100 k RESETB, RESETBMCU Pull-ups
19 1 R20
100 k SDWNB Pull-up
Boost
20 1 L9
2.2 H LPS3015-222ML Coilcraft Boost Inductor
21 1 D3
Diode BAS52 Infineon Boost diode
22 1 C26
2.2 F 16 V Boost Output Capacitor
23 2 C25
22 F Boost Input Capacitor