Datasheet LTM4620 (Analog Devices) - 4
| Hersteller | Analog Devices |
| Beschreibung | Dual 13A or Single 26A DC/DC µModule Regulator |
| Seiten / Seite | 40 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 721 Kb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the specified internal
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LTM4620
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified internal operating temperature range (Note 2). Specified as each individual output channel. TA = 25°C, VIN = 12V and VRUN1, VRUN2 at 5V unless otherwise noted. Per the typical application in Figure 23. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
TRACK1 (I), Track Pin Soft-Start Pull-Up Current TRACK1 (I),TRACK2 (I) Start at 0V 1 1.25 1.5 µA TRACK2 (I) UVLO Undervoltage Lockout VIN Falling 3.3 V VIN Rising 3.9 V UVLO Hysteresis 0.6 V tON(MIN) Minimum On-Time (Note 6) 90 ns RFBHI1, RFBHI2 Resistor Between VOUTS1, VOUTS2 60.05 60.4 60.75 kΩ and VFB1, VFB2 Pins for Each Output VPGOOD1, VPGOOD2 PGOOD Voltage Low IPGOOD = 2mA 0.1 0.3 V Low IPGOOD PGOOD Leakage Current VPGOOD = 5V ±5 µA VPGOOD PGOOD Trip Level VFB with Respect to Set Output Voltage VFB Ramping Negative –10 % VFB Ramping Positive 10 %
INTVCC Linear Regulator
VINTVCC Internal VCC Voltage 6V < VIN < 16V 4.8 5 5.2 V VINTVCC INTVCC Load Regulation ICC = 0mA to 50mA 0.5 2 % Load Regulation VEXTVCC EXTVCC Switchover Voltage EXTVCC Ramping Positive 4.5 4.7 V VEXTVCC(DROP) EXTVCC Dropout ICC = 20mA, VEXTVCC = 5V 50 100 mV VEXTVCC(HYST) EXTVCC Hysteresis 200 mV
Oscillator and Phase-Locked Loop
Frequency Nominal Nominal Frequency fSET = 1.2V 450 500 550 kHz Frequency Low Lowest Frequency fSET = 0V (Note 5) 210 250 290 kHz Frequency High Highest Frequency fSET > 2.4V, Up to INTVCC 700 780 860 kHz fSET Frequency Set Current 9 10 11 µA RMODE_PLLIN MODE_PLLIN Input Resistance 250 kΩ CLKOUT Phase (Relative to VOUT1) PHASMD = GND 60 Deg PHASMD = Float 90 Deg PHASMD = INTVCC 120 Deg CLK High Clock High Output Voltage 2 V CLK Low Clock Low Output Voltage 0.2 V
Differential Amplifier
AV Differential Gain 1 V/V Amplifier RIN Input Resistance Measured at DIFFP Input 80 kΩ VOS Input Offset Voltage VDIFFP = VDIFFOUT = 1.5V, IDIFFOUT = 100µA 3 mV PSRR Differential Power Supply Rejection Ratio 5V < VIN < 16V 90 dB Amplifier ICL Maximum Output Current 2 mA VOUT(MAX) Maximum Output Voltage IDIFFOUT = 300µA INTVCC – 1.4 V 4620fc 4 For more information www.linear.com/LTM4620 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified internal operating temperature range (Note 2). Specified as each individual output channel. TA = 25°C, VIN = 12V and VRUN1, VRUN2 at 5V unless otherwise noted. Per the typical application in Figure 23. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
TRACK1 (I), Track Pin Soft-Start Pull-Up Current TRACK1 (I),TRACK2 (I) Start at 0V 1 1.25 1.5 µA TRACK2 (I) UVLO Undervoltage Lockout VIN Falling 3.3 V VIN Rising 3.9 V UVLO Hysteresis 0.6 V tON(MIN) Minimum On-Time (Note 6) 90 ns RFBHI1, RFBHI2 Resistor Between VOUTS1, VOUTS2 60.05 60.4 60.75 kΩ and VFB1, VFB2 Pins for Each Output VPGOOD1, VPGOOD2 PGOOD Voltage Low IPGOOD = 2mA 0.1 0.3 V Low IPGOOD PGOOD Leakage Current VPGOOD = 5V ±5 µA VPGOOD PGOOD Trip Level VFB with Respect to Set Output Voltage VFB Ramping Negative –10 % VFB Ramping Positive 10 %
INTVCC Linear Regulator
VINTVCC Internal VCC Voltage 6V < VIN < 16V 4.8 5 5.2 V VINTVCC INTVCC Load Regulation ICC = 0mA to 50mA 0.5 2 % Load Regulation VEXTVCC EXTVCC Switchover Voltage EXTVCC Ramping Positive 4.5 4.7 V VEXTVCC(DROP) EXTVCC Dropout ICC = 20mA, VEXTVCC = 5V 50 100 mV VEXTVCC(HYST) EXTVCC Hysteresis 200 mV
Oscillator and Phase-Locked Loop
Frequency Nominal Nominal Frequency fSET = 1.2V 450 500 550 kHz Frequency Low Lowest Frequency fSET = 0V (Note 5) 210 250 290 kHz Frequency High Highest Frequency fSET > 2.4V, Up to INTVCC 700 780 860 kHz fSET Frequency Set Current 9 10 11 µA RMODE_PLLIN MODE_PLLIN Input Resistance 250 kΩ CLKOUT Phase (Relative to VOUT1) PHASMD = GND 60 Deg PHASMD = Float 90 Deg PHASMD = INTVCC 120 Deg CLK High Clock High Output Voltage 2 V CLK Low Clock Low Output Voltage 0.2 V
Differential Amplifier
AV Differential Gain 1 V/V Amplifier RIN Input Resistance Measured at DIFFP Input 80 kΩ VOS Input Offset Voltage VDIFFP = VDIFFOUT = 1.5V, IDIFFOUT = 100µA 3 mV PSRR Differential Power Supply Rejection Ratio 5V < VIN < 16V 90 dB Amplifier ICL Maximum Output Current 2 mA VOUT(MAX) Maximum Output Voltage IDIFFOUT = 300µA INTVCC – 1.4 V 4620fc 4 For more information www.linear.com/LTM4620 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Related Parts