MAX1587CETL Maxim Integrated Products, MAX1587CETL Datasheet - Page 17

• Manufacturer Part Number: MAX1587CETL
• Description: Other Power Management PMICs w/Dynamic Core for PDAs
• Manufacturer: Maxim Integrated Products

Figure 1. MAX1586 Functional Diagram (The MAX1587 omits some features. See the Pin Description section.)
OPEN-DRAIN DEAD-BATT OUT
Dynamic Core for PDAs and Smart Phones
OPEN-DRAIN LOW-BATT OUT
(1ST SUPPLY, ALWAYS ON)
BATTERY
BACKUP
______________________________________________________________________________________
FROM CPU
TO nBATT_FAULT
SYS_EN
MAIN
BATT
Li+
V7, VCC_BATT
RESET INPUT
nVCC_FAULT
FORCE REG3
SLEEP
TO PWM
TO CPU
TO CPU
nRESET
RUN
BATT
REF
LBO
DBO
ON1
ON2
SLP
V7
RSO
MR
PWM3
POK
CC1
CC2
CC3
DBI (3.15V OR ADJ)
LBI (3.6V OR ADJ)
BKBT
RAMP
GND
High-Efficiency, Low-I
1.25V
SRAD
REF
SERIAL
I
TO V1
2
REG1 OK
C
SCL SDA
POWER-
V1–V6
2.425V
RESET
65ms
OK
V7
DAC
V3
UVLO
BATT
MON
AND
100kΩ
IN
SLPIN
ON
ON
PWM
ADJ
STEP-DOWN
STEP-DOWN
STEP-DOWN
SLEEP
SLEEP
LDO
REG
LDO
REG
LDO
REG
PWM
REG1
PWM
REG2
PWM
REG3
LDO
LDO
MAX1586
4
5
6
ON
IN45
ON6
PV1
PV2
PV3
ON3
ON4
ON5
LX1
PG1
FB1
LX2
PG2
FB2
PG3
FB3
BYP
IN6
LX3
V5
V6
V1
V2
V4
TO BATT
TO BATT
TO V2
TO V2
FROM CPU
SYS_EN
Q
V1, VCC_IO
3.3V WITH FB1 = GND,
OR ADJ WITH RESISTORS
V2, VCC_MEM
2.5V WITH FB2 = GND,
1.8V WITH FB2 = IN (MAX1586A, MAX1587A)
3.3V WITH FB2 = IN (MAX1586B)
OR ADJ WITH RESISTORS
V3, VCC_CORE
0.7V TO 1.475V
500mA (MAX1586A, MAX1586B, MAX1587A)
900mA (MAX1586C, MAX1587C)
FROM CPU
PWR_EN
V4, VCC_PLL
1.3V, 35mA
V5, VCC_SRAM
1.1V, 35mA
VCC_USIM
0V, 1.8V, 3.0V (DEF = 0V)
PMICs with
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