參數(shù)資料
型號： P95020ZLLG
廠商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類： 電源管理
英文描述： 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA124
封裝： LLGA-124
文件頁數(shù)： 115/137頁
文件大小： 3533K
代理商： P95020ZLLG
P95020 / Preliminary Datasheet
Revision 0.7.10
79
2010 Integrated Device Technology, Inc.
Buck500_0 PFM efficiency Vinp 3.7V Vout 2.30V
82.5
83
83.5
84
84.5
85
85.5
86
86.5
87
87.5
88
0
2
4
6
8
10
12
14
16
load mA
e
ffi
c
ie
n
c
y
Figure 19
– BUCK500 DC-DC Regulator Efficiency vs Load Current PFM Mode
8.4
BUCK1000 & BUCK500 - REGISTER ADDRESSES
All three Buck Converters can be controlled and monitored by writing 8-bit control words to either the Output Voltage
Register or the Control Register. The Base addresses are defined in Table 3 – Register Address Global Mapping on page
20. The offset addresses are defined as the Base Address in the following table.
Table 18
– BUCK500_0, BUCK500_1 and BUCK1000 Register Addresses
Name
Description
Output Voltage Register
Control Register
IC Address
Base Address
IC Address
Base Address
BUCK500_0
Buck Converter # 0 (500 mA)
Page-0: 128(0x80)
0xA080
Page-0: 129(0x81)
0xA081
BUCK500_1
Buck Converter # 1 (500 mA)
Page-0: 130(0x82)
0xA082
Page-0: 131(0x83)
0xA083
BUCK1000
Buck Converter # 2 (1000 mA)
Page-0: 132(0x84)
0xA084
Page-0: 133(0x85)
0xA085
8.4.1
BUCK500 & BUCK1000 - Output Voltage Registers: (See Table 18 above for addresses)
The Output Voltage Register contains the Enable bit and the Output Voltage setting bits.
Bit
Bit Name
Def.
Set.
User
Type
Value
Description / Comments
[6:0]
VOUT
[See
]
RW
Output Voltage = VOUT * 0.025V + 0.75V
7
ENABLE
0h
RW
1 = Enable
0 = Disable
Enable Output
Table 19
– Output Voltage Register Settings, Bits [6:0]
Bit
Setting
Output
Voltage
Bit
Setting
Output
Voltage
Bit
Setting
Output
Voltage
Bit
Setting
Output
Voltage
Bit
Setting
Output
Voltage
0000000
0.750
0011000
1.350
0110000
1.950
1001000
2.550
1100000
3.150
0000001
0.775
0011001
1.375
0110001
1.975
1001001
2.575
1100001
3.175
0000010
0.800
0011010
1.400
0110010
2.000
1001010
2.600
1100010
3.200
0000011
0.825
0011011
1.425
0110011
2.025
1001011
2.625
1100011
3.225
0000100
0.850
0011100
1.450
0110100
2.050
1001100
2.650
1100100
3.250
0000101
0.875
0011101
1.475
0110101
2.075
1001101
2.675
1100101
3.275
0000110
0.900
0011110
1.500
0110110
2.100
1001110
2.700
1100110
3.300
0000111
0.925
0011111
1.525
0110111
2.125
1001111
2.725
1100111
3.325
0001000
0.950
0100000
1.550
0111000
2.150
1010000
2.750
1101000
3.350
0001001
0.975
0100001
1.575
0111001
2.175
1010001
2.775
1101001
3.375
0001010
1.000
0100010
1.600
0111010
2.200
1010010
2.800
1101010
3.400
0001011
1.025
0100011
1.625
0111011
2.225
1010011
2.825
1101011
3.425
0001100
1.050
0100100
1.650
0111100
2.250
1010100
2.850
1101100
3.450
0001101
1.075
0100101
1.675
0111101
2.275
1010101
2.875
1101101
3.475
0001110
1.100
0100110
1.700
0111110
2.300
1010110
2.900
1101110
3.500
0001111
1.125
0100111
1.725
0111111
2.325
1010111
2.925
1101111
3.525
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