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LM2677SD-ADJ 데이터시트(PDF) 3 Page - Texas Instruments

부품명 LM2677SD-ADJ
상세설명  LM2677 SIMPLE SWITCHER짰 High Efficiency 5A Step-Down Voltage Regulator
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LM2677
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SNVS077I – MAY 2004 – REVISED JUNE 2012
Absolute Maximum Ratings
(1) (2)
Input Supply Voltage
45V
ON/OFF Pin Voltage
−0.1V to 6V
Switch Voltage to Ground(3)
−1V to VIN
Boost Pin Voltage
VSW + 8V
Feedback Pin Voltage
−0.3V to 14V
Power Dissipation
Internally Limited
ESD(4)
2 kV
Storage Temperature Range
−65°C to 150°C
Soldering Temperature
Wave
4 sec, 260°C
Infrared
10 sec, 240°C
Vapor Phase
75 sec, 219°C
(1)
Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings indicate conditions under
which of the device is ensured. Operating Ratings do not imply ensured performance limits. For ensured performance limits and
associated test condition, see the electrical Characteristics tables.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3)
The absolute maximum specification of the 'Switch Voltage to Ground' applies to DC voltage. An extended negative voltage limit of -10V
applies to a pulse of up to 20 ns, -6V of 60 ns and -3V of up to 100 ns.
(4)
ESD was applied using the human-body model, a 100pF capacitor discharged through a 1.5 k
Ω resistor into each pin.
Operating Ratings
Supply Voltage
8V to 40V
Junction Temperature Range (TJ)
−40°C to 125°C
LM2677-3.3 Electrical Characteristics
Limits appearing in bold type face apply over the entire junction temperature range of operation,
−40°C to 125°C.
Specifications appearing in normal type apply for TA = TJ = 25°C. Sync pin open circuited.
Symbol
Parameter
Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A
3.3
3.234
3.366
V
3.201
3.399
η
Efficiency
VIN = 12V, ILOAD = 5A
82
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are guaranteed via correlation using
standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
LM2677-5.0 Electrical Characteristics
Symbol
Parameter
Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 8V to 40V, 100mA ≤ IOUT ≤ 5A
5.0
4.900
5.100
V
4.850
5.150
η
Efficiency
VIN = 12V, ILOAD = 5A
84
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are guaranteed via correlation using
standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
LM2677-12 Electrical Characteristics
Symbol
Parameter
Conditions
Typ(1)
Min(2)
Max(2)
Units
VOUT
Output Voltage
VIN = 15V to 40V, 100mA ≤ IOUT ≤ 5A
12
11.76
12.24
V
11.64
12.36
η
Efficiency
VIN = 24V, ILOAD = 5A
92
%
(1)
Typical values are determined with TA = TJ = 25°C and represent the most likely norm.
(2)
All limits are specified at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature
limits are 100% tested during production with TA = TJ = 25°C. All limits at temperature extremes are guaranteed via correlation using
standard standard Quality Control (SQC) methods. All limits are used to calculate Average Outgoing Quality Level (AOQL).
Copyright © 2004–2012, Texas Instruments Incorporated
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