参数资料
型号: MC13892VLR2
厂商: Freescale Semiconductor
文件页数: 72/158页
文件大小: 0K
描述: IC PMU I.MX51/37/35/27 186MAPBGA
标准包装: 1,000
应用: 电池管理,显示器(LED 驱动器),手持/移动设备,电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 186-LFBGA
供应商设备封装: 186-PBGA(12x12)
包装: 带卷 (TR)
FUNCTIONAL DEVICE OPERATION
SUPPLIES
Table 43. Power Tree Summary
Supply
VCAM
VGEN1
VGEN2
VGEN3
VUSB
Purpose (Typical Application)
Camera supply, internal PMOS
Camera supply, external PNP
General peripherals supply #1, external PNP
General peripherals supply #2, external PNP
General peripherals supply #3, internal PMOS
General peripherals supply #3, external PNP
USB Transceiver supply
Output Voltage (in V)
2.5/2.6/2.75/3.0
2.5/2.6/2.75/3.0
1.2/1.5/2.775/3.15
1.2/1.5/1.6/1.8/2.7/2.8/3.0/3.15
1.8/2.9
1.8/2.9
3.3
Load Capability (in mA)
65
250
200
350
50
250
100
BUCK REGULATOR SUPPLIES
Four buck regulators are provided with integrated power switches and synchronous rectification. In a typical application, SW1
and SW2 are used for supplying the application processor core power domains. Split power domains allow independent DVS
control for processor power optimization, or to support technologies with a mix of device types with different voltage ratings. SW3
is used for powering internal processor memory as well as low voltage peripheral devices and interfaces which can run at the
same voltage level. SW4 is used for powering external memory as well as low voltage peripheral devices and interfaces which
can run at the same voltage level.
An anticipated platform use case applies SW1 and SW2 to processor power domains that require voltage alignment to allow
direct interfacing without bandwidth limiting synchronizers.
The buck regulators have to be supplied from the system supply BP, which is drawn from the main battery or the battery
charger (when present). Figure 16 shows a high level block diagram of the buck regulators.
Figure 16. Buck Regulator Architecture
MC13892
Analog Integrated Circuit Device Data
72
Freescale Semiconductor
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