LTM4612 Ver la hoja de datos (PDF) - Linear Technology
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LTM4612 Datasheet PDF : 24 Pages
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LTM4612
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the –40°C to 85°C
operating temperature range, otherwise specifications are at TA = 25°C, VIN = 24V, unless otherwise noted. Per Typical Application
(front page) configuration.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
RPLLIN
IDRVCC
RFBHI
VMPGM
VMARG0, VMARG1
PGOOD
PLLIN Input Resistor
Current into DRVCC Pin
Resistor Between VOUT and VFB Pins
Margin Reference Voltage
VOUT = 12V, IOUT = 1A
MARG0, MARG1 Voltage Thresholds
50
kΩ
22
30
mA
99.5 100 100.5
kΩ
1.18
V
1.4
V
ΔVFBH
ΔVFBL
ΔVFB(HYS)
VPGL
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
VFB Rising
VFB Falling
VFB Returning
IPGOOD = 5mA
7
10
13
%
–7
–10
–13
%
1.5
%
0.15 0.4
V
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 LTM4612E 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 LTM4612I is guaranteed to meet specifications over the
–40°C to 125°C internal operating temperature range. The LTM4612MP
is guaranteed and tested over the full –55°C to 125°C internal operating
temperature range. Note that the maximum ambient temperature 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 die level only.
Note 4: See the Output Current Derating curves for different VIN, VOUT
and TA.
4612f
4
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