LP3913 Datasheet, PDF (2/70 Pages) Texas Instruments – Power Management IC for Flash Memory-Based Portable Media Players

LP3913
SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013
TYPICAL APPLICATION CIRCUIT
AC Adapter
4. 5 - 6.0V
Cchg _det
4.7 2F
VDD1
Cvdd
4.72F ^VDD2
VDD3
CHG_ DET
USB 2.0
Vbus
5V
USBPWR
Cusb
4.7 2F
D+ ^vbus
D-
USB
Controller
USBSUSP
USBISEL
CHG
STAT
RED
Li-ion/ polymer cell
+
GREEN
VBATT3
VBATT2
Cbatt
4.7 2F
VBATT1
TS
Rsense 4.64k
Cvin1
1 2F
ISENSE
Cvin 2
10 2F
VIN1
Cvin3 Cvin4
10 2F 10 2F
VIN2 VIN3 VIN4
Linear
Charger
ThSD
Battery
Monitor
OSC
ADC
BUCK 3
BUCK 2
BUCK 1
Audio Analog
Touchpad
ONOFF
VLDO2
Cldo2
1.0 2F
LDO 2
LDO2EN
VLDO1
Cldo1
1.0 2F
LDO 1
vrefhi _iref
Logic Control
and Registers
i2c
www.ti.com
TFT
backlight
Boost
Display
Back
Lighting
ADC1
ADC2
VBUCK3L1
VBUCK3L2
Lsw 3
2. 2 2H
VBUCK3
VFB3
Csw3
22 2F
Lsw 2
2. 2 2H
VBUCK 2
VFB2
Csw2
10 2F
Flash
SDRAM / DDR
IO
BUCK1EN
Lsw 1
2. 2 2H _1.2V
VBUCK1
VFB1
Csw1
10 2F
VDDIO
22k
ONSTAT
1.8 k
I2C_ SCL
1.8 k
I2C_ SDA
NRST ^22k
vddio
gpio
scl
cpu
sda _SoC
reset
IRQB
22k
irq
POWERACK
gpio
GND
VREFH
Cvrefh
0.1 2F
IREF
Riref
121k
BCK1GND BCK2GND BCK3GND1
BCK3GND2
AGND DGND
2
Submit Documentation Feedback
Product Folder Links: LP3913
Copyright © 2006–2013, Texas Instruments Incorporated