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参数资料
| 型号： | TPS65055RSMR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1.8 A DUAL SWITCHING CONTROLLER, 2475 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封装： | 4 X 4 MM, GREEN, PLASTIC, QFN-32 |
| 文件页数： | 22/41页 |
| 文件大小： | 1276K |
| 代理商： | TPS65055RSMR |
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www.ti.com.......................................................................................................................................................................................... SLVS844 – SEPTEMBER 2008
SLEW2
SLEW1
SLEW0
VDCDC3 SLEW RATE
0
0.11 mV/
s
0
1
0.22 mV/
s
0
1
0
0.45 mV/
s
0
1
0.9 mV/
s
1
0
1.8 mV/
s
1
0
1
3.6 mV/
s
1
0
7.2 mV/
s
1
Immediate
LDO_CTRL1. Register Address: 08h (r/w)
Default Value: set with DEFLDO1, DEFLDO2
LDO_CTRL
B7
B6
B5
B4
B3
B2
B1
BO
Bit name and function
LDO2[2]
LDO2[1]
LDO2[0]
LDO1[2]
LDO1[1]
LDO1[0]
Default
0
DEFLDO
0
DEFLDO
pins
Default value loaded by:
UVLO
Read/write
R
R/W
R
R/W
The LDO_CTRLx registers can be used to set the output voltages of LDO1 to LDO4. The default value is loaded
at power-up depending on the status of the DEFLDO pins. See section Default Voltage Setting for LDOs and
DCDC1 for details. The status of the DEFLDO pins is latched after the undervoltage lockout threshold is
exceeded, so the voltage can be changed by reprogramming the register content.
LDO2
LDO1
LDO2[2]
LDO2[1]
LDO2[0]
LDO1[2]
LDO1[1]
LDO1[0]
OUTPUT
VOLTAGE
0
1.2 V
0
0.8V
0
1
1.3 V
0
1
1.0 V
0
1
0
1.8 V
0
1
0
1.2 V
0
1
2.6 V
0
1
1.5 V
1
0
2.7 V
1
0
1.8 V
1
0
1
2.8 V
1
0
1
2.1 V
1
0
2.9 V
1
0
2.5 V
1
3.0 V
1
2.8 V
LDO_CTRL2. Register Address: 09h (r/w)
Default Value: set with DEFLDO1, DEFLDO2
LDO_CTRL
B7
B6
B5
B4
B3
B2
B1
BO
Bit name and function
LDO4[2]
LDO4[1]
LDO4[0]
LDO3[2 LDO3[1
LDO3[0]
]
Default
0
DEFLDO
DEFLD
DEFLDO
0
DEFLD
pins
O pins
pins
O pins
Default value loaded
UVLO
by:
Read/write
R
R/W
R
R/W
The default value is loaded at power-up depending on the status of the DEFLDO pins. See section Default
Voltage Setting for LDOs and DCDC1 for details. The status of the DEFLDO pins is latched after the
undervoltage lockout threshold is exceeded, so the voltage can be changed by reprogramming the register
content.
Copyright 2008, Texas Instruments Incorporated
29
Product Folder Link(s): TPS65055
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