MAX8680 Datasheet, PDF (2/2 Pages) Maxim Integrated Products – Smallest, All-Internal MOSFET, 7-Channel DSC PMIC in Tiny 5mm x 5mm Thin QFN

ABRIDGED
Smallest, All-Internal MOSFET, 7-Channel
DSC PMIC in Tiny 5mm x 5mm Thin QFN
V_BATT OR V_SU
V_BATT
(2V TO 5.5V)
C1
22μF
C20
0.1μF
C2
22μF
L1
2μH
V_SU
(5V, 500mA)
C3
22μF
R1
402kΩ
C4
22μF
R17
100Ω
C16
0.1μF
R2
100kΩ
C5
V_SU
1μF
V_MAIN
(3.3V, 300mA)
C6
C7
R3 10μF
10μF
232kΩ
L2
4.7μH
R4
100kΩ
C8
10μF
V_BATT
V_SD
(1.8V, 250mA)
C10
C9
R5 10μF
10μF
80kΩ
L3
4.7μH
R6
100kΩ
NOTE: ALL CONVERTERS’ POWER GROUND CONNECTIONS
ARE THROUGH THE EXPOSED PADDLE (EP).
24
REF
33 _BATT
32 _LXSU
31 _LXSU
29
PVSU
30 _PVSU
16
PVINV
LXINV ¹⁵
C18
1μF
D3
L7
4.7μH
FBINV ²³
SWBST ¹⁷
C19
4.7μF
V_CCDINV
(-7.5V, 100mA)
R13
604kΩ
R14
100kΩ
26 _SU
MAX8680
27 _FBSU
PGSU
(EP)
PGSU
(EP)
38 _PVM
39 _LXM
1 _FBM
PGM
(EP)
34 _PVSD
35 _LXSD
5
FBSD
PGSD
(EP)
28 _ONSU
40 _ONM
6 _ONSD
10 _ONLED
21 _ONBST
7 _ONINV
2 _ONZ
LXBST ^{19, 20}
PGBST
(EP)
FBBST ²²
L6
4.7μH
D2
PVBST ¹⁸
V_BATT
V_{REF VCCDBST}
(15V, 30mA)
C17
1μF
R11
1.4MΩ
R12
C16
100kΩ
1μF
V_BATT
PVLED ¹³
L5
SWLED ^{14 4.7μH}
D1
LXLED ^{11, 12}
OVLED ⁹
C14
1μF
C15
1μF
V_LEDBST
(16V, 30mA)
R9
D4
1.6MΩ
D5
R10
D6
100kΩ
D7
FBLED ⁸
PGLED
(EP)
EP
25
GND
PVZ ³⁶
LXZ ³⁷
V_BATT OR
V_SU
C11
1μF
L4
4.7μH
C12
C13
10μF
10μF
FBZ ³
PGZ
(EP)
SDOK ⁴
R16
100kΩ
V_BATT
R15
10Ω
V_DDRZ
(2.5V, 200mA)
R7
150kΩ
R8
100kΩ
Figure 1. MAX8680 Typical Application Circuit (for Li+ Cell Design, Connect PVZ and PVINV to BATT; for Two-AA or Dual-Battery
Design, Connect PVZ and PVINV to PVSU)
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