Datasheet LTC3622, LTC3622-2, LTC3622-23/5 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | 17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current |
| Seiten / Seite | 24 / 5 — ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply … |
| Revision | D |
| Dateiformat / Größe | PDF / 1.3 Mb |
| Dokumentensprache | Englisch |
ELECTRICAL CHARACTERISTICS The. denotes the specifications which apply over the specified operating
Modelllinie für dieses Datenblatt
- LTC3622EDE#PBF LTC3622EDE#TRPBF LTC3622EDE-2#PBF LTC3622EDE-2#TRPBF LTC3622EDE-23/5#PBF LTC3622EDE-23/5#TRPBF LTC3622EMSE#PBF LTC3622EMSE#TRPBF LTC3622EMSE-2#PBF LTC3622EMSE-2#TRPBF LTC3622HDE#PBF LTC3622HDE#TRPBF LTC3622HDE-2#PBF LTC3622HDE-2#TRPBF LTC3622HDE-23/5#PBF LTC3622HDE-23/5#TRPBF LTC3622HMSE#PBF LTC3622HMSE#TRPBF LTC3622HMSE-2#PBF LTC3622HMSE-2#TRPBF LTC3622IDE#PBF LTC3622IDE#TRPBF LTC3622IDE-2#PBF LTC3622IDE-2#TRPBF LTC3622IDE-23/5#PBF LTC3622IDE-23/5#TRPBF LTC3622IMSE#PBF LTC3622IMSE#TRPBF LTC3622IMSE-2#PBF LTC3622IMSE-2#TRPBF
Textversion des Dokuments
LTC3622/ LTC3622-2/LTC3622-23/5
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 12V, unless otherwise noted. (Notes 3, 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fOSC Oscillator Frequency LTC3622-2/LTC3622-23/5 –40°C ≤ TA ≤ 150°C l 1.8 2.25 2.6 MHz LTC3622 –40°C ≤ TA ≤ 125°C l 0.82 1.00 1.16 MHz LTC3622 –40°C ≤ TA ≤ 150°C l 0.75 1.00 1.16 MHz External CLK Amplitude 0.4 VINTVCC–0.3 V SYNC Capture Range % of Programmed Frequency 50 150 % VINTVCC INTVCC Voltage 3.3 3.6 3.9 V Power Good Range VIN > 4V –7.5 –11 % RPGOOD Power Good Resistance PGOOD RDS(ON) at 2mA 275 350 Ω tPGOOD PGOOD Delay PGOOD Low to High 0 Cycles PGOOD High to Low 32 Cycles Phase Shift Between Channel 1 and Channel VPHASE = 0V 0 Deg 2 VPHASE = INTVCC, VMODE/SYNC = 0V 180 Deg
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings range. High junction temperatures degrade operating lifetimes; operating may cause permanent damage to the device. Exposure to any Absolute lifetime is derated for junction temperatures greater than 125°C. Note that Maximum Rating condition for extended periods may affect device the maximum ambient temperature consistent with these specifications reliability and lifetime. is determined by specific operating conditions in conjunction with board
Note 2.
Transient Absolute Maximum Voltages should not be applied for layout, the rated package thermal impedance and other environment more than 4% of the switching duty cycle. factors.
Note 3.
The LTC3622 is tested under pulsed load conditions such that
Note 4.
The quiescent current in active mode does not include switching T loss of the power FETs. J ≈ TA. The LTC3622E is guaranteed to meet specified performance from 0°C to 85°C. Specifications over the –40°C to 125°C operating junction
Note 5.
The LTC3622 is tested in a proprietary test mode that connects temperature range are assured by design, characterization and correlation VFB to the output of error amplifier. with statistical process controls. The LTC3622I is guaranteed over the
Note 6.
TJ is calculated from the ambient TA and power dissipation PD –40°C to 125°C operating junction temperature range and the LTC3622H according to the following formula: TJ = TA + (PD • θJA) is guaranteed over the -40°C to 150°C operating junction temperature Rev D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 12V, unless otherwise noted. (Notes 3, 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
fOSC Oscillator Frequency LTC3622-2/LTC3622-23/5 –40°C ≤ TA ≤ 150°C l 1.8 2.25 2.6 MHz LTC3622 –40°C ≤ TA ≤ 125°C l 0.82 1.00 1.16 MHz LTC3622 –40°C ≤ TA ≤ 150°C l 0.75 1.00 1.16 MHz External CLK Amplitude 0.4 VINTVCC–0.3 V SYNC Capture Range % of Programmed Frequency 50 150 % VINTVCC INTVCC Voltage 3.3 3.6 3.9 V Power Good Range VIN > 4V –7.5 –11 % RPGOOD Power Good Resistance PGOOD RDS(ON) at 2mA 275 350 Ω tPGOOD PGOOD Delay PGOOD Low to High 0 Cycles PGOOD High to Low 32 Cycles Phase Shift Between Channel 1 and Channel VPHASE = 0V 0 Deg 2 VPHASE = INTVCC, VMODE/SYNC = 0V 180 Deg
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings range. High junction temperatures degrade operating lifetimes; operating may cause permanent damage to the device. Exposure to any Absolute lifetime is derated for junction temperatures greater than 125°C. Note that Maximum Rating condition for extended periods may affect device the maximum ambient temperature consistent with these specifications reliability and lifetime. is determined by specific operating conditions in conjunction with board
Note 2.
Transient Absolute Maximum Voltages should not be applied for layout, the rated package thermal impedance and other environment more than 4% of the switching duty cycle. factors.
Note 3.
The LTC3622 is tested under pulsed load conditions such that
Note 4.
The quiescent current in active mode does not include switching T loss of the power FETs. J ≈ TA. The LTC3622E is guaranteed to meet specified performance from 0°C to 85°C. Specifications over the –40°C to 125°C operating junction
Note 5.
The LTC3622 is tested in a proprietary test mode that connects temperature range are assured by design, characterization and correlation VFB to the output of error amplifier. with statistical process controls. The LTC3622I is guaranteed over the
Note 6.
TJ is calculated from the ambient TA and power dissipation PD –40°C to 125°C operating junction temperature range and the LTC3622H according to the following formula: TJ = TA + (PD • θJA) is guaranteed over the -40°C to 150°C operating junction temperature Rev D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts