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参数资料
型号： LTC3589EUJ#PBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 稳压器
英文描述： SWITCHING REGULATOR, 2600 kHz SWITCHING FREQ-MAX, PQCC40
封装： 6 X 6 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-40
文件页数： 31/46页
文件大小： 570K
代理商： LTC3589EUJ#PBF
LTC3589/LTC3589-1
37
3589fc
OPERATION
Table 17. LTC3589 Command Register Table
REG
NAME
B[7]
B[6]
B[5]
B[4]
B[3]
B[2]
B[1]
B[0]
DEFAULT
0x07
SCR1
Buck-Boost
Mode:
0 = Continuous
1 = Burst Mode
Step-Down Switching
Regulator 3 Mode :
0 0 = Pulse-Skipping
0 1 = Burst
1 0 = Forced Continuous
Step-Down Switching
Regulator 2 Mode :
0 0 = Pulse-Skipping
0 1 = Burst
1 0 = Forced Continuous
Step-Down Switching
Regulator 1 Mode :
0 0 = Pulse-Skipping
0 1 = Burst
1 0 = Forced Continuous
0000 0000
0x10
OVEN
Software
Control Mode:
0 = Enable
with Pin or
OVEN Register
1 = Enable/
Disable with
OVEN Register
Only
EN_LDO4
EN_LDO3
EN_LDO2
EN4
EN3
EN2
EN1
0000 0000
0x12
LTC3589
SCR2
Mask PGOOD
Hard
Shutdown:
0 = Allow
PGOOD
Timeout Hard
Shutdown.
1 = Inhibit
PGOOD Hard
Shutdown.
LDO4
Start-Up:
0 = Wait for
Output < 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
LDO3
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
LDO2
Start-Up:
0 = Wait for
Output <
300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Buck-Boost
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 3
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 2
Start-Up:
0 = Wait
for Output
< 300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 1
Start-Up:
0 = Wait for
Output <
300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
0000 0000
0x12
LTC3589-1
SCR2
Mask PGOOD
Hard
Shutdown:
0 = Inhibit
PGOOD
Timeout Hard
Shutdown.
1 = Allow
PGOOD Hard
Shutdown.
LDO4
Start-Up:
0 = Wait for
Output < 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
LDO3
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
LDO2
Start-Up:
0 = Wait for
Output <
300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Buck-Boost
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 3
Start-Up:
0 = Wait
for Output
< 300mV
Before Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 2
Start-Up:
0 = Wait
for Output
< 300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
Step-Down
Switching
Regulator 1
Start-Up:
0 = Wait for
Output <
300mV Before
Enable
1 = Don’t Wait
and Disable
Discharge
Resistor.
0000 0000
0x20
VCCR LDO2
Reference
Select:
0 =
L2DTV1[4-0]
1 =
L2DTV2[4-0]
Start LDO2
Slew:
0 = Went
1 = GO
Step-Down
Switching
Regulator 3
Reference
Select:
0 =
B3DTV1[4-0]
1 =
B3DTV2[4-0]2
Start
Step-Down
Switching
Regulator 3
Slew:
0 = Went
1= GO
Step-Down
Switching
Regulator 2
Reference
Select:
0 =
B2DTV1[4-0]
1 =
B2DTV2[4-0]
Start
Step-Down
Switching
Regulator 2
Slew:
0 = Went
1= GO
Step-Down
Switching
Regulator 1
Reference
Select:
0 =
B1DTV1[4-0]
1 =
B1DTV2[4-0]2
Start
Step-Down
Switching
Regulator 1
Slew:
0 = Went
1= GO
0000 0000
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