參數(shù)資料
型號(hào): TPS65055RSMR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.8 A DUAL SWITCHING CONTROLLER, 2475 kHz SWITCHING FREQ-MAX, PQCC32
封裝: 4 X 4 MM, GREEN, PLASTIC, QFN-32
文件頁(yè)數(shù): 18/41頁(yè)
文件大?。?/td> 1276K
代理商: TPS65055RSMR
www.ti.com.......................................................................................................................................................................................... SLVS844 – SEPTEMBER 2008
The REG_CTRL register can be used to disable and enable all power supplies via the serial interface. The
following tables indicate how the enable pins and the REG_CTRL register are combined.
EN_DCDC1 Pin
REG_CTRL<5>
DCDC1 Converter
EN_LDO2 Pin
REG_CTRL<2>
LDO2
0
Disabled
0
Disabled
0
1
Enabled
0
1
Enabled
1
0
Enabled
1
0
Enabled
1
Disabled
1
Disabled
EN_DCDC2 pin
REG_CTRL<4>
DCDC2
EN_LDO3 pin
REG_CTRL<1>
LDO3
0
Disabled
0
Disabled
0
1
Enabled
0
1
Enabled
1
0
Enabled
1
0
Enabled
1
Disabled
1
Disabled
EN_LDO1 pin
REG_CTRL<3>
LDO1
EN_LDO4 pin
REG_CTRL<0>
LDO4
0
Disabled
0
Disabled
0
1
Enabled
0
1
Enabled
1
0
Enabled
1
0
Enabled
1
Disabled
1
Disabled
Bit 7
RST:
0 = The internal NMOS is turned on and drives the output to GND
1 = The internal NMOS is turned off, an external pull-up resistor at RST drives the output high
Bit 6
DPD:
0 = The internal NMOS is turned on and drives the output to GND
1 = The internal NMOS is turned off, an external pull-up resistor at DPD drives the output high
CON_CTRL. Register Address: 03h (read/write)
Default Value: 00h
CON_CTRL
B7
B6
B5
B4
B3
B2
B1
BO
Bit name and function
LOW RIPPLE
FPWM
DCDC1
DCDC2
DCDC1
DCDC2
Default
0
1
Default value loaded by:
UVLO
Read/write
R
R/W
The CON_CTRL register is used to force any or all of the converters into forced PWM operation, when low
output voltage ripple is vital.
Bit 3
LOW RIPPLE DCDC1:
0 = PFM mode operation optimized for high efficiency for DCDC1
1 = PFM mode operation optimized for low output voltage ripple for DCDC1
Bit 2
LOW RIPPLE DCDC2:
0 = PFM mode operation optimized for high efficiency for DCDC2
1 = PFM mode operation optimized for low output voltage ripple for DCDC2
Bit 1
FPWM DCDC1:
0 = DCDC1 converter operates in PWM / PFM mode
1 = DCDC1 converter is forced into fixed frequency PWM mode
Copyright 2008, Texas Instruments Incorporated
25
Product Folder Link(s): TPS65055
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