参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 85/158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 82. Digital LDO (VDIG_1.4) Programming voltage table
Code (d)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Code (b)
000000
000001
000010
000011
000100
000101
000110
000111
001000
001001
001010
001011
001100
001101
001110
001111
010000
010001
010010
010011
010100
V OUT (V)
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
Code (d)
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Code (b)
010110
010111
011000
011001
011010
011011
011100
011101
011110
011111
100000
100001
100010
100011
100100
100101
100110
100111
101000
101001
101010
V OUT (V)
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.50 (do not use)
1.60 (do not use)
1.70 (do n0t use)
1.80 (do not use)
1.90
2.00
2.10
2.20
2.30
2.40
2.50
21
010101
1.80
Note: Full performance for Vout ≤ 2.20V; max. 100mA output current for Vout ≤ 2.50V; do not use values Vout>2.50V
8.12.3 Low power LDO (V2_5)
The Low power LDO V2_5 is needed to supply the chip core (analog and digital) of the device. It is designed to get the
lowest possible power consumption, and still offering reasonable regulation characteristics. The regulator has three
supply inputs selecting automatically the higher one. This gives the possibility to supply the chip core either with the
battery or with the charger depending on the conditions. Bulk switch comparators are used to avoid any parasitic
current flow. To ensure high PSRR and stability, a low-ESR ceramic capacitor of min. 1μF must be connected to the
output.
Table 83. Low power LDO (V2_5) Characteristics, V BAT =4V; ILOAD_ext=0; Tamb=25oC; CLOAD =2.2 μF (Ceramic);
unless otherwise specified
Symbol
Parameter
Min
Typ
Max
Unit
Note
V BAT
2.8
5.5
V CHARGER
Supply voltage rage
4
15
V
R ON
PSRR
On resistance
Power supply rejection
ratio
60
40
50
Ω
dB
Guaranteed per design
f=1kHz
f=100kHz
www.austriamicrosystems.com
Revision 1v13
84 - 157
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