参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 79/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description-Power Management Functions
8.12
Low Dropout Regulators (LDO)
The low dropout regulators are linear high performance regulators with programmable output voltage.
They are controlled by the following registers:
Table 71. LDO_RF1 voltage bit definitions
Addr:03
LDO_RF1 voltage
These bits control the LDO_RF1 voltage and mode
Bit
Bit Name
Default Access
Description
Control the voltage selection for LDO VRF_1
4:0
ldo_rf1_v
ROM
R/W
00000 1.85V
… (LSB=50mV)
11111 3.40V
5
rf1_lcurr_en
ROM
R/W
0
1
current limitation = Ilimit
current limitation Ilimit=Ilimit/2
6
rf1_swprot_en
ROM
R/W
If ‘1’ current limitation is enabled, if RF1-LDO is operating
as High side switch
Table 72. LDO_RF2 voltage bit definitions
Addr:04
LDO_RF2 voltage
These bits control the LDO_RF2 voltage and mode
Bit
Bit Name
Default Access
Description
Control the voltage selection for LDO VRF_2
4:0
ldo_rf2_v
ROM
R/W
00000 1.85V
… (LSB=50mV)
11111 3.40V
5
rf2_lcurr_en
ROM
R/W
0
1
current limitation = Ilimit
current limitation Ilimit=Ilimit/2
Table 73. LDO_RF3 voltage bit definitions
Addr:05
LDO_RF3 voltage
These bits control the LDO_RF3voltage and mode
Bit
Bit Name
Default Access
Description
Control the voltage selection for LDO VRF_3
4:0
ldo_rf3_v
ROM
R/W
00000 1.85V
… (LSB=50mV)
11111 3.40V
5
rf3_lcurr_en
ROM
R/W
0
1
current limitation = Ilimit
current limitation Ilimit=Ilimit/2
0
normal mode
6
rf3_hotplug_en
ROM
R/W
1
200mA current limited switch, if bit rf3_sw=1
(rf3_lcurr_en=0)
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Revision 1v13
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