Datasheet LTM4648 (Analog Devices) - 4

LTM4648
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full internal operating temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 5V per typical application. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
GBP Gain Bandwidth Product 3 MHz CMRR Common Mode Rejection (Note 6) 60 dB IDIFFOUT DIFFOUT Current Sourcing 2 mA RIN Input Resistance VOSNS+ to GND 80 kΩ VPGOOD PGOOD Trip Level VFB With Respect to Set Output VFB Ramping Negative –10 % VFB Ramping Positive 10 % VPGL PGOOD Voltage Low IPGOOD = 2mA 0.1 0.3 V
INTVCC Linear Regulator
VINTVCC Internal VCC Voltage 2.375V ≤ VIN ≤ 5V 4.8 5 5.2 V VIN = 5.5V 5.15 5.25 5.35 V VINTVCC Load Reg INTVCC Load Regulation ICC = 0mA to 50mA 0.5 %
Oscillator and Phase-Locked Loop
fSYNC SYNC Capture Range 250 650 kHz fS Nominal Switching Frequency 400 450 500 kHz RMODE Mode Input Resistance 250 kΩ VIH_CLKIN Clock Input Level High 2.0 V VIL_CLKIN Clock Input Level Low 0.8 V
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 3:
The minimum on-time condition is tested at wafer sort. may cause permanent damage to the device. Exposure to any Absolute
Note 4:
See output current derating curves for different VIN, VOUT and TA. Maximum Rating condition for extended periods may affect device
Note 5:
Guaranteed by design. reliability and lifetime. Notes are automatically numbered when you apply the note style.
Note 6:
100% tested at wafer level.
Note 2:
The LTM4648 is tested under pulsed load conditions such that TJ ≈ TA. The LTM4648E 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 LTM4648I is guaranteed to meet specifications over the –40°C to 125°C internal operating temperature range. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Rev A 4 For more information www.analog.com Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Design Resources Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Design Resources Related Parts