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PDF XX1188 Data sheet ( Hoja de datos )

Número de pieza XX1188
Descripción 10-Channel Power Management Units
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XX1188
10-Channel Power Management
Units for 3G Applications
DESCRIPTION
The XX1188 power-management IC (PMIC) is an complete,
efficient, compact devices suitable for 3G cellular
applications such as wireless data cards, handsets and
PDAs,. It integrates a 2MHz synchronous buck regulator,
nine low-dropout linear regulators (LDOs), a RESET
generator, and an 32KHZ crystal driver and buffer.
XX1188 is housed in a thin QFN4x4-28pin package.
APPLICATIONS
3G wireless Cards
3G phones
FEATURES
Buck converter for MSMC,1.2V/500mA
LDO1 for MSME, 1.8V/300mA
LDO2 for MSMP, 2.6V/300mA
LDO3 for MEMA, 2.6V/300mA
LDO4 for TCXO, 2.85V/50mA
LDO5 for RFTX, 2.1V/300mA
LDO6 for RFRX, 2.7V/150mA
LDO7 for USB, 3.3V/50mA
LDO8 for URIM, 3.0v/1.8v, 50mA
LDO9 for MMC, 3.0V/150mA
Independent ON/OFF control for LDO4,5,6,7,8,9
RESET generator
Inverter for 32Mhz crystal oscillator
QFN4x4-28L package
PIN CONFIGURATION
TYPICAL APPLICATION
PWR_ON
IN2
OUT1
+
LDO1
-
OUT2
+
LDO2
-
OUT5
EN56
+
LDO5
-
OUT6
EN8
+
LDO6
-
OUT8
CLK_OUT
+
LDO8
-
UVLO &
Thermal
shutdown
REF
RESET
Crystal
Interver
+
LDO3
-
nRESET
IN1
IN2
OUT3
+
LDO4
-
+
LDO9
-
OUT4
EN4
LDO9
EN9
+
LDO7
-
600mA
DC-DC
OUT7
EN7
LX
FB
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XX1188 pdf
XX1188
BLOCK DIAGRAM
PWR_ON
IN2
OUT1
OUT2
+
LDO1
-
+
LDO2
-
OUT5
EN56
OUT6
EN8
OUT8
CLK_OUT
+
LDO5
-
+
LDO6
-
+
LDO8
-
CP890010-Channel Power Management Units for 3G Applications
UVLO &
Thermal
shutdown
REF
RESET
Crystal
Interver
+
LDO3
-
nRESET
IN1
IN2
OUT3
+
LDO4
-
+
LDO9
-
+
LDO7
-
600mA
DC-DC
OUT4
EN4
LDO9
EN9
OUT7
EN7
LX
FB
TIMING DIAGRAM
*The delay between LDO1 start up after Buck power up is to set min. delay time 250us, typical 350us, max. 500us at
25C. This is to guarantee enough delay time for full temperature range, as delay time is about 250us at 85C.
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