MAX1586A_08 Datasheet, PDF (26/30 Pages) Maxim Integrated Products – High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones

High-Efficiency, Low-I_Q PMICs with
Dynamic Core for PDAs and Smart Phones
BATT
C11
MAIN
10μF
BATT
DBI (3.2V OR ADJ)
TO
BATT TO V1
C19
R19
R20 _0.1μF
1MΩ 1MΩ
LOW-BATT
WARNING
TO CPU
nBATT_FAULT
LBI (3.6V OR ADJ)
REF
REF
1.25V
LBO
DBO
UVLO
AND
BATT
MON
IN SLPIN
MAX1586
STEP-DOWN
PWM
REG1
ON
FROM CPU
SYS_EN
RUN
SLEEP
Li+
BACKUP
BATTERY
C25
1μF
V7, VCC_BATT
(ALWAYS ON)
C24
1μF
TO CPU
nRESET
RESET INPUT
R18
1MΩ
TO V1
TO CPU
nVCC-FAULT
C18
1500pF
ON1
ON2
SLP
BKBT
V7
TO V1
REG1 OK
RSO
MR
PWM3
V7
RESET
2.3V
65ms
POK
RAMP
V1–V6
POWER-
OK
100kΩ
SLEEP
LDO
ON
STEP-DOWN
PWM
REG2
SLEEP
LDO
STEP-DOWN
PWM
REG3
PWM
ADJ
ON
LDO
REG
4
V3
DAC
LDO
REG
5
CC1
CC2
R21
CC3
240kΩ R22
240kΩ R23
C26
330pF
C27
240kΩ
I²C
270pF
C28
SERIAL
LDO
330pF
REG
6
GND
SRAD SCL SDA
PV1
C12
4.7μF
LX1
L1
3.3μH
PG1
V1
FB1
PV2
TO BATT
C13
4.7μF
LX2
L2
6.8μH
PG2
V2
FB2
PV3
TO BATT
C14
4.7μF
LX3
L3
10μH
PG3
FB3
ON3
IN45
TO V2
V4
C23
BYP
1μF
C20
0.01μF
ON4
ON5
V1
C15 VCC_IO
22μF 3.3V
1300mA
V2
C16 VCC_MEM
22μF 2.5V
900mA
V3
C17 VCC_CORE
22μF 0.7V TO 1.475V
500mA (MAX1586A, MAX1586B, MAX1587A)
900mA (MAX1586C, MAX1587C)
FROM CPU
PWR_EN
V4, VCC_PLL
1.3V, 35mA
C22
V5
1μF
IN6
TO V2
V6
C21
1μF
V5
VCC_SRAM
1.1V, 35mA
V6
VCC_USIM
0V, 1.8V, 3.0V (DEF = 0V)
35mA
ON6
FROM CPU
SYS_EN
Figure 6. MAX1586 Typical Applications Circuit (The MAX1587 omits some features. See the Pin Description section.)
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