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| 型号： | PWL6030B1AACMR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA187 |
| 封装： | 7 X 7 MM, 0.40 MM PITCH, GREEN, FCBGA-187 |
| 文件页数： | 38/97页 |
| 文件大小： | 937K |
| 代理商： | PWL6030B1AACMR |
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SWCS045B
– SEPTEMBER 2010 – REVISED JUNE 2011
LDOs are controlled by I2C access and their output voltage can be selected in a wide range of values. The
following equation describes the relationship between the LDO output voltage and the register value.
Absolute voltage value = 1.0 V + 0.1 V
× (binary value – 00000001)
(2)
NOTE
This formula applies to all general-purposes LDOs, for all codes from 00000001 to
00011000.
For the remaining codes, it is specified dedicated output voltages:
– 00000000 sets the output voltage to 0 V.
– 00011001 to 00011110 codes are reserved.
– 00011111 code sets the output voltages at 2.75 V.
Table 9. LDO Output Voltage Selection Code
CODE
VOUT(V)
CODE
VOUT(V)
CODE
VOUT(V)
CODE
VOUT(V)
00000000
0
00001000
1.7
00010000
2.5
00011000
3.3
00000001
1.0
00001001
1.8
00010001
2.6
00011001
Reserved
00000010
1.1
00001010
1.9
00010010
2.7
00011010
Reserved
00000011
1.2
00001011
2.0
00010011
2.8
00011011
Reserved
00000100
1.3
00001100
2.1
00010100
2.9
00011100
Reserved
00000101
1.4
00001101
2.2
00010101
3.0
00011101
Reserved
00000110
1.5
00001110
2.3
00010110
3.1
00011110
Reserved
00000111
1.6
00001111
2.4
00010111
3.2
00011111
2.75
NOTE
Depending on the output voltage selection code selected, the core section of the LDO
is supplied either by the VBAT level (associated VDD_B# ball) or by the LDO_IN input
supply
For all codes in the range of [1.0 - 2.1]V, the VBAT battery level is used to supply the
LDO core section
For all other codes, from 2.2V up to 3.3V, the LDO_IN power source is used to supply
the LDO core section
When Software disables the LDO, the regulator does not present any leakage, even if
there is 0V at the LDO_IN input supply ball and the output voltage selected is
≥ 2.2V
Disabling the LDO does not interact on the core supply switch selection, only linked to
the output voltage code
The output voltage selection, which also affects the core supply switch control, has to
be programmed before the regulator turn on event
The regulator output voltage cannot be modified on the fly, from the [1.0 - 2.1]V voltage
range to the other [2.2 - 3.3]V voltage range and vice-versa. The regulator must be
restarted
TWL6030 does not prevent SW for enabling the LDO, even if the LDO_IN input supply
is not present
VANA
The VANA voltage regulator is dedicated to supply the analog functions of the TWL6030 device, such as the
GPADC, gas gauge, and other analog circuitry.
VANA can be enabled and disabled individually or when associated with a power group. This power resource
control optimizes the overall SLEEP state current consumption. This regulator can be used at platform level to
supply other applications, provided they do not generate noise to the supply line and the maximum current is less
than 15 mA.
Copyright
2010–2011, Texas Instruments Incorporated
43
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