参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 83/158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
Table 80. Analog LDO (VRF_1, VRF_2, VRF_3) Characteristics, Vx_IN=4V; ILOAD=150mA; Tamb=25oC;
CLOAD =2.2μF (Ceramic); unless otherwise specified
Symbol
V LoadReg
I LIMIT_VRF1_HCUR
R
I LIMIT_VRF1_LCURR
Parameter
Load regulation
Current limitation
Current limitation
Min
-1
-10
Typ
800
400
Max
1
10
Unit
mV
mA
mA
Note
Static
Transient; Slope: t r =10μs
VRF_1, rf1_lcurr_en=0
VRF_1, rf1_lcurr_en=1 and during
startup
Current limitation
I LIMIT_VRF2,3_L
VRF_2,3 low current
300
mA
rf2_lcurr_en=1, rf3_lcurr_en=1
limit
Current limitation
I LIMIT_VRF2,3_H
VRF_2,3 high current
500
mA
rf2_lcurr_en=0, rf3_lcurr_en=0
limit
C LOAD_RF1
C LOAD_RF2,3_L
C LOAD_RF2,3_H
Load capacitor
Load capacitor
Load capacitor
2
1
2
5
5
5
μF
μF
μF
ceramic only (VRF_1)
ceramic only (VRF_2,3) for
rf1_lcurr_en=1 and rf2_lcurr_en=1
ceramic only (VRF_2,3) for
rf1_lcurr_en=0 and rf2_lcurr_en=0
1. Guaranteed by design and verified by laboratory evaluation and characterization; not production tested.
8.12.2 Digital LDO’s (VDIG_1, VDIG_2, VDIG_3, VDIG_4)
The Digital LDO’s can be used in any medium power system or subsystem where quiescent power consumption of the
regulator itself has to be minimized without sacrificing its performance. For its stability a cheap 1μF ceramic capacitor
is required. The 5V charge pump will be switched on automatically, if one of the digital LDO’s are switched on.
Figure 33. Digital LDO Block diagram
  μ
  
Table 81. Digital LDO (VDIG1, VDIG2, VDIG3, VDIG4) Characteristics,VSUPPLY=4V; ILOAD=200mA; Tamb=25oC;
CLOAD =1μF (Ceramic); unless otherwise specified
Symbol
VDIGX_IN
Parameter
Supply voltage range
Min
1
Typ
Max
5.5
Unit
V
Note
I OUT
Output current
1
0
0
200
100
mA
mA
V out <2.2V;
VDIGX_IN>V out +R ON *I OUT
V out <2.5V;
VDIGX_IN>V out +R ON *I OUT
R ON
On resistance
4
Ω
V out <2.2V
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Revision 1v13
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