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LTM4620A_15 Datasheet, PDF (4/40 Pages) Linear Technology – Dual 13A or Single 26A DC/DC Module Regulator
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LTM4620A
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal
operating temperature range. Specified as each individual output channel. TA = 25°C (Note 2), VIN = 12V and VRUN1, VRUN2 at 5V
unless otherwise noted. Per the typical application in Figure 26.
SYMBOL
PARAMETER
CONDITIONS
TRACK1 (I),
TRACK2 (I)
Track Pin Soft-Start Pull-Up Current TRACK1 (I),TRACK2 (I) Start at 0V
UVLO
UVLO Hysteresis
Undervoltage Lockout
VIN Falling
VIN Rising
tON(MIN)
RFBHI1, RFBHI2
VPGOOD1, VPGOOD2
Low
Minimum On-Time
Resistor Between VOUTS1, VOUTS2
and VFB1, VFB2 Pins for Each Output
PGOOD Voltage Low
(Note 6)
IPGOOD = 2mA
IPGOOD
VPGOOD
PGOOD Leakage Current
PGOOD Trip Level
INTVCC Linear Regulator
VINTVCC
Internal VCC Voltage
VINTVCC
Load Regulation
INTVCC Load Regulation
VPGOOD = 5V
VFB with Respect to Set Output Voltage
VFB Ramping Negative
VFB Ramping Positive
6V < VIN < 16V
ICC = 0mA to 50mA
VEXTVCC
EXTVCC Switchover Voltage
VEXTVCC(DROP)
EXTVCC Dropout
VEXTVCC(HYST)
EXTVCC Hysteresis
Oscillator and Phase-Locked Loop
EXTVCC Ramping Positive
ICC = 20mA, VEXTVCC = 5V
Frequency Nominal
Frequency Low
Frequency High
fSET
RMODE_PLLIN
CLKOUT
Nominal Frequency
Lowest Frequency
Highest Frequency
Frequency Set Current
MODE_PLLIN Input Resistance
Phase (Relative to VOUT1)
CLK High
CLK Low
Clock High Output Voltage
Clock Low Output Voltage
fSET = 1.2V
fSET = 0V (Note 5)
fSET > 2.4V, Up to INTVCC
PHASMD = GND
PHASMD = Float
PHASMD = INTVCC
Differential Amplifier
AV Differential
Gain
Amplifier
RIN
VOS
PSRR Differential
Amplifier
Input Resistance
Input Offset Voltage
Power Supply Rejection Ratio
Measured at DIFFP Input
VDIFFP = VDIFFOUT = 1.5V, IDIFFOUT = 100µA
5V < VIN < 16V
ICL
VOUT(MAX)
Maximum Output Current
Maximum Output Voltage
IDIFFOUT = 300µA
MIN
1
59.90
TYP MAX UNITS
1.25 1.5
µA
3.3
V
3.9
V
0.6
V
90
ns
60.4 60.75
kΩ
0.1 0.3
V
±5
µA
–10
%
10
%
4.8
5
5.2
V
0.5
2
%
4.5
4.7
V
50 100
mV
200
mV
450
500 550
kHz
210
250 290
kHz
700
780 860
kHz
9
10
11
µA
250
kΩ
60
Deg
90
Deg
120
Deg
2
V
0.2
V
1
V
80
kΩ
3
mV
90
dB
2
mA
INTVCC – 1.4
V
4620afb
4
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