ISL9305IRTHBCNLZEV1Z 查看數據表（PDF） - Renesas Electronics
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ISL9305IRTHBCNLZEV1Z
Renesas Electronics
ISL9305IRTHBCNLZEV1Z Datasheet PDF : 17 Pages
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ISL9305H
LDO1 AND LDO2 OUTPUT VOLTAGE CONTROL
REGISTERS
LDO1OUT, address 0x02h and LDO2OUT, address 0x03h.
The output voltages of the two LDO’s at power-up are internally
fixed by the IC fuse as dictated by the part number, After
power-up, different voltages can be selected by first writing a
desired value to this register. Then write a “1” to Bit 6 of the
SYS_PARAMETER (Table 7) to change the voltage control method
to I2C control.
TABLE 4. LDOX OUTPUT VOLTAGE CONTROL REGISTERS
BIT
NAME
ACCESS DEFAULT
DESCRIPTION
B7 Reserve
B6 Reserve
B5 LDOxOUT-5
-
-
R/W
0 Refer to Table 5 for
output voltage
0
settings
0
B4 LDOxOUT-4
R/W
0
B3 LDOxOUT-3
R/W
1
B2 LDOxOUT-2
R/W
1
B1 LDOxOUT-1
R/W
0
B0 LDOxOUT-0
R/W
0
LDOOUT
<7:0>
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
LDO OUTPUT
VOLTAGE (V)
0.9
0.95
1.00
1.05
1.1
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
TABLE 5. LDOX OUTPUT VOLTAGE SETTINGS
LDOOUT
<7:0>
LDO OUTPUT
VOLTAGE (V)
LDOOUT
<7:0>
LDO OUTPUT
VOLTAGE (V)
10
1.70
20
2.50
11
1.75
21
2.55
12
1.80
22
2.60
13
1.85
23
2.65
14
1.90
24
2.70
15
1.95
25
2.75
16
2.00
26
2.80
17
2.05
27
2.85
18
2.10
28
2.90
19
2.15
29
2.95
1A
2.20
2A
3.00
1B
2.25
2B
3.05
1C
2.30
2C
3.10
1D
2.35
2D
3.15
1E
2.40
2E
3.20
1F
2.45
2F
3.25
LDOOUT
<7:0>
30
31
32
33
34
35
36
LDO OUTPUT
VOLTAGE (V)
3.30
3.35
3.40
3.45
3.50
3.55
3.60
FN7724 Rev 2.00
March 7, 2014
Page 11 of 17
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