Datasheet LTM4650A-1 (Analog Devices) - 4

LTM4650A-1
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 34. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
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 Load Regulation INTVCC Load Regulation ICC = 0mA to 50mA 0.5 2 % 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 220 mV
Oscillator and Phase-Locked Loop
Frequency Nominal Nominal Frequency fSET = 1.2V 450 500 550 kHz Frequency Low Lowest Frequency fSET = 0V 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 Amp Gain 1 V/V RIN Input Resistance Measured at DIFFP Input 80 kΩ VOS Input Offset Voltage VDIFFP = VDIFFOUT = 1.2V, IDIFFOUT = 100µA 3 mV PSRR Differential Amp Power Supply Rejection Ratio 4.5V < VIN < 16V 90 dB ICL Maximum Output Current 3 mA VOUT(MAX) Maximum Output Voltage IDIFFOUT = 300µA INTVCC – 1.4 V GBW Gain Bandwidth Product 3 MHz VTEMP Diode Connected PNP I = 100µA 0.6 V TC Temperature Coefficient l –2.2 mV/C
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings conditions in conjunction with board layout, the rated package thermal may cause permanent damage to the device. Exposure to any Absolute impedance and other environmental factors. Maximum Rating condition for extended periods may affect device
Note 3:
Two outputs are tested separately and the same testing condition reliability and lifetime. is applied to each output.
Note 2:
The LTM4650A-1 is tested under pulsed load conditions such that
Note 4:
The switching frequency is programmable from 250kHz to 780kHz. TJ ≈ TA. The LTM4650AE-1 is guaranteed to meet specifications from
Note 5:
These parameters are tested at wafer sort. 0°C to 125°C internal temperature. Specifications over the –40°C to 125°C internal operating temperature range are assured by design,
Note 6:
See output current derating curve for different ambient characterization and correlation with statistical process controls. The temperature. LTM4650AI-1 is guaranteed over the full –40°C to 125°C internal
Note 7:
Total DC output voltage error includes all errors over operating temperature range. Note that the maximum ambient temperature temperature – reference, line and load regulation as well as the tolerance consistent with these specifications is determined by specific operating of the integrated top feedback resistor. 4650a1f 4 For more information www.linear.com/LTM4650A-1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Typical Application Package Photo Design Resources Related Parts