参数资料
型号: TPS81256SIPT
厂商: Texas Instruments
文件页数: 16/26页
文件大小: 0K
描述: IC REG BOOST SYNC 5V 0.6A 9USIP
标准包装: 250
类型: 升压(升压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 4MHz
电流 - 输出: 600mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
包装: *
供应商设备封装: *
其它名称: 296-34854-2

SLVSAZ9A – JUNE 2012 – REVISED AUGUST 2013
TPS81256SIP
TYPICAL APPLICATIONS
C DECOUPLING
V IN
3.3 V .. 4.8 V
L
DC/DC Converter
L
VOUT
VIN
C O
5.0 V, up to 550mA
(1)
4.7μF
CLASS-D APA
C I
EN
GND
Audio Input
Audio Input
EN APA
EN DC/DC
GND
(1)
The capacitor is not only required to decouple the audio power amplifier,
but is also required to stable operation of the SMPS converter.
The SMPS converter should be located in the close vicinity of the audio power amplifier.
Figure 21. "Boosted" Audio Power Supply
TPS81256SIP
L
DC/DC Converter
L VOUT
V USB
5V, 500mA
V IN
3.0 V .. 4.35 V
C I
VIN
EN
GND
C O
4.7μF
16V X5R (0603)
USB-DCP Port
ENABLE
GND
bq24156A
V BUS = +5V
C IN
1 m F
VBUS
SW
L O 1.0 m H
C BOOT
R SNS
68m W
V BAT
C O
10 m F
C O
47 m F
10 nF
C IN
4.7 m F
PMID
BOOT
PGND
CSIN
C CSIN
0.1 m F
PACK+
SCL
SDA
STAT
OTG
CD
CSOUT
VREF
C CSOUT
0.1 m F
C VREF
PACK–
1 m F
Figure 22. Battery Powered USB-DCP Power Supply
16
Product Folder Links: TPS81256
Copyright ? 2012–2013, Texas Instruments Incorporated
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