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LTM4633 Folha de dados(PDF) 4 Page - Linear Technology

Nome de Peças LTM4633
Descrição Electrónicos  Triple 10A Step-DownDC/DC 關Module Regulator
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Fabricante Electrônico  LINER [Linear Technology]
Página de início  http://www.linear.com
Logo LINER - Linear Technology

LTM4633 Folha de dados(HTML) 4 Page - Linear Technology

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LTM4633
4
4633f
For more information www.linear.com/LTM4633
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified internal
operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 12V, per the typical application for each regulator
channel.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RFBHI
Resistor Between VOUT and VFB Pins
60
60.4
60.8
VPGOOD
PGOOD Trip Level
PGOOD12
PGOOD3
VFB With Respect to Set Output
VFB Ramping Negative
VFB Ramping Positive
–7.5
7.5
%
%
VPGL
PGOOD Voltage Low
IPGOOD = 2mA
0.1
0.3
V
INTVCC Linear Regulator
VINTVCC
Internal VCC Voltage
Float
MODE/PLLIN
6V < VIN < 16V
4.8
5
5.2
V
VINTVCC Load
Reg
INTVCC Load Regulation
ICC = 0mA to 50mA
0.5
%
VEXTVCC
EXTVCC Switchover Voltage
EXTVCC Ramping Positive
l
4.5
4.7
V
VLDO EXT
EXTVCC Voltage Drop
ICC = 20mA, VEXTVCC = 5V
30
75
mV
VLDOHYS
EXTVCC Hysteresis
200
mV
Oscillator and Phase-Locked Loop
fSYNC
SYNC Capture Range
Clock Input Duty Cycle = 50%
600
750
kHz
fS
Switching Frequency
VFREQ/PLLLPF = INTVCC
700
750
800
kHz
RMODE/PLLIN
MODE/PLLIN Input Resistance
250
VIH(MODE/PLLIN) Clock Input Level High
2.0
V
VIL(MODE/PLLIN) Clock Input Level Low
0.8
V
Clock Phase
VOUT2 to VOUT1 Phase
VOUT3 to VOUT2 Phase
VOUT1 to VOUT3 Phase
VFREQ/PLLLPF = 1.2V (Note 3)
120
120
120
Deg
Deg
Deg
VTEMP1,2
Temperature Diode Forward Voltage
ITEMP = 100µA at 25°C
0.598
V
TC VTEMP
Temperature Coefficient
–2.0
mV/°C
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM4633 is tested under pulsed load conditions such that
TJ ≈ TA. The LTM4633E is guaranteed to meet performance specifications
over the 0°C to 125°C internal operating temperature range. Specifications
over the –40°C to 125°C internal operating temperature range are assured
by design, characterization and correlation with statistical process
controls. The LTM4633I is guaranteed to meet specifications over the
–40°C to 125°C internal operating temperature range. The LTM4633MP
is guaranteed and tested to meet specifications over the –55°C to 125°C
internal operating temperature range. Note that the maximum ambient
temperature consistent with these specifications is determined by specific
operating conditions in conjunction with board layout, the rated package
thermal resistance and other environmental factors.
Note 3: 100% tested at wafer level.
Note 4: See output current derating curves for different VIN, VOUT and TA.
Note 5: Guaranteed by design.
Note 6: High duty designs need to be validated based on maximum
temperature rise and derating in ambient conditions.


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