参数资料
型号: LP3923TLX-VC
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA30
封装: 3 X 2.50 MM, MICRO SMD-30
文件页数: 9/32页
文件大小: 1718K
代理商: LP3923TLX-VC
Register 0x1C – MISC Control 1
EN_APU_TSD
0 - do not start PMU automatically after TSD event
1 - start PMU automatically after TSD event
PS_HOLD_DELAY
0 - PMU powerdown after PS_HOLD has been low for 35 ms
1 - PMU powerdown after PS_HOLD has been low for 350 ms
LDO OUTPUT VOLTAGE PROGRAMMING
The following table summarizes the supported output voltages for LP3923. Default voltages after start-up sequences have been
highlighted in bold.
Data Code LDO_Vx_OP[x]
LDOx [V]
Data Code LDO_Vx_OP[x]
LDOx [V]
8h'00
1.20
8h'10
2.20
8h'01
1.25
8h'11
2.40
8h'02
1.30
8h'12
2.50
8h'03
1.35
8h'13
2.60
8h'04
1.40
8h'14
2.65
8h'05
1.45
8h'15
2.70
8h'06
1.50
8h'16
2.75
8h'07
1.55
8h'17
2.80
8h08
1.60
8h'18
2.85
8h'09
1.65
8h'19
2.90
8h'0A
1.70
8h'1A
2.95
8h'0B
1.75
8h'1B
3.00*
8h'0C
1.80*
8h'1C
3.05
8h'0D
1.85
8h'1D
3.10
8h'0E
1.90
8h'1E
3.20
8h'0F
2.00
8h'1F
3.3
* See table on page 5.
CHARGING CURRENT PROGRAMMING
The following table summarizes the supported currents for LP3923.
PROG_ ICHG[4]
PROG_ ICHG[3]
PROG_ ICHG[2]
PROG_ ICHG[1]
PROG_ ICHG[0]
ICHG (mA)
0
50
0
1
100
0
1
0
150
0
1
200
0
1
0
250
0
1
0
1
300
0
1
0
350
0
1
400 (Default)
0
1
0
450
0
1
0
1
500
0
1
0
1
0
550
0
1
0
1
600
0
1
0
650
0
1
0
1
700
0
1
0
750
0
1
800
1
0
850
1
0
1
900
17
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LP3923
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