Datasheet LTC7130 (Analog Devices) - 4

LTC7130
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, VRUN = 5V unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CLKOUT Phase Relative to the 180 Deg Oscillator Clock CLKOUTHI Clock Output High Voltage VINTVCC = 5.5V 4.5 5.5 V CLKOUTLO Clock Output Low Voltage 0 0.2 V
PGOOD Output
VPGDLO PGOOD Voltage Low IPGOOD = 2mA 0.1 0.3 V IPGD PGOOD Leakage Current VPGOOD = 5.5V 2 µA VPGD PGOOD Trip VFB with Respect to Set Output Voltage VFB Going Negative –10 % VFB Going Positive 10 %
Differential Amplifier
AV Gain –40°C to 125°C l 0.997 1 1.003 V/V RIN Input Resistance Measured at DIFFP Input 80 kΩ VOS Input Offset Voltage VDIFFP = 1.5V, VDIFFOUT = 100µA 2 mV PSRR Power Supply Rejection Ratio 5V < VIN < 20V (Note 7) 90 dB IOUT Maximum Sourcing Output 1.5 2 mA Current VOUT Maximum Output Voltage VINTVCC = 5.5V, IDIFFOUT = 300µA VINTVCC – 1.4 VINTVCC – 1.1 V GBW Gain-Bandwidth Product (Note 7) 3 MHz SR Slew Rate (Note 7) 2 V/µs
RDS(ON)
RTOP Top Power NMOS On- 7.3 mΩ Resistance RBOTTOM Bottom Power NMOS On- 2.1 mΩ Resistance
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
When 4.5V ≤ VIN ≤ 5.5V, INTVCC must be tied to VIN. Guaranteed may cause permanent damage to the device. Exposure to any Absolute by design. Maximum Rating condition for extended periods may affect device
Note 4:
The LTC7130 is tested in a feedback loop that servos VITH to a reliability and lifetime. specified voltage and measures the resultant VFB.
Note 2:
The LTC7130 is tested under pulsed load conditions such that
Note 5:
Dynamic supply current is higher due to the gate charge being TJ ≈ TA. The LTC7130E is guaranteed to meet performance specifications delivered at the switching frequency. See Applications Information. from 0°C to 85°C operating junction temperature. Specifications over
Note 6:
The minimum on-time condition corresponds to the on inductor the –40°C to 125°C operating junction temperature range are assured by peak-to-peak ripple current ≥40% of I design, characterization and correlation with statistical process controls. MAX (see Minimum On-Time Considerations in the Applications Information section). The LTC7130I is guaranteed to meet performance specifications over the full –40°C to 125°C operating junction temperature range. The maximum
Note 7:
Guaranteed by design. ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the package thermal impedance and other environmental factors. The thermal derating curves are based on the LTC7130 demo board. 7130fb 4 For more information www.linear.com/LTC7130 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Functional Block Diagram Operation Applications Information Typical Application Related Parts .34579 Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Pin Functions Functional Block Diagram Operation Applications Information Typical Applications Typical Application Related Parts