LM2596HVGT-ADJ [HTC]
60V, 3A, 150kHz, Step-down Switching Regulator;型号: | LM2596HVGT-ADJ |
厂家: | HTC KOREA TAEJIN TECHNOLOGY CO. |
描述: | 60V, 3A, 150kHz, Step-down Switching Regulator |
文件: | 总9页 (文件大小:336K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
FEATURES
SOP-8PP PKG
3.3V, 5V, 12V and Adjustable output versions
Adjustable version output voltage range, 1.23V to 57V
±4% max over line and load condition
Available in TO-220, TO-263 and SOP-8PP
Guaranteed 3A output load current
Input voltage range up to 60V
TO-263 PKG
TO-220 PKG
Requires only 4 external components
Excellent line and load regulation specifications
150kHz fixed frequency internal oscillator
Low power standby mode, ISTB typically 30uA
High efficiency
Thermal shutdown and current limit protection
Output short protection by reduction of frequency
by 3 times
ORDERING INFORMATION
Device
Package
LM2596HVGDP-ADJ
LM2596HVGDP-X.X
LM2596HVGR-ADJ
LM2596HVGR-X.X
LM2596HVGT-ADJ
LM2596HVGT-X.X
SOP-8PP
APPLICATION
Simple high-efficiency step-down (buck) regulator
Efficient pre-regulator for linear regulators
On-card switching regulators
TO-263 5L
TO-220 5L
X.X = Output Voltage = 3.3, 5.0, 12
DESCRIPTION
The LM2596HV series of regulators are monolithic integrated circuits that provide all the active functions for a
step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These
devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version.
Available in a standard 5-lead TO-220 package and a 5-lead TO-263 surface mount package.
External shutdown is included, featuring typically 30 μA standby current. The output switch includes cycle-by-
cycle current limiting, as well as thermal shutdown, and protection from output short for full protection under fault
conditions.
Absolute Maximum Ratings (Note 1)
CHARACTERISTIC
SYMBOL
MIN.
MAX.
UNIT
Supply Voltage
VIN
VON/OFF
VFB
-
63
V
V
ON/OFF Pin Input Voltage
FB pin voltage
-0.3
-0.3
-1
60 (or VIN)
25 (or VIN)
V
Output voltage to GND
VOUT
TSTG
V
Storage Temperature Range
Maximum Junction Temperature Range
-65
-
150
150
℃
℃
TJ,MAX
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
Operating Ratings
CHARACTERISTIC
SYMBOL
VIN
MIN.
4.5
-
MAX.
UNIT
Supply Voltage
Load Current
60
3.0
125
V
A
ILOAD
TJ
Temperature Range
-40
Ordering Information
VOUT
Package
Order No.
Description
Supplied As
Status
SOP-8PP-8L
TO-263-5L
TO-220-5L
SOP-8PP-8L
TO-263-5L
TO-220-5L
SOP-8PP-8L
TO-263-5L
TO-220-5L
SOP-8PP-8L
TO-263-5L
TO-220-5L
LM2596HVGDP-ADJ
LM2596HVGR-ADJ
LM2596HVGT-ADJ
LM2596HVGDP-3.3
LM2596HVGR-3.3
LM2596HVGT-3.3
LM2596HVGDP-5.0
LM2596HVGR-5.0
LM2596HVGT-5.0
LM2596HVGDP-12
LM2596HVGR-12
LM2596HVGT-12
3A, 150kHz, Adjustable
3A, 150kHz, Adjustable
3A, 150kHz, Adjustable
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
3A, 150kHz, Fixed
Reel
Reel
Tube
Reel
Reel
Tube
Reel
Reel
Tube
Reel
Reel
Tube
Active
Active
ADJ
Active
Contact us
Active
3.3V
5.0V
12V
Contact us
Active
Active
Active
Contact us
Active
Active
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
PIN CONFIGURATION
5. ON/OFF
4. FB/ADJ
3. GND
2. VOUT
1. VIN
5. ON/OFF
4. FB/ADJ
3. GND
2. VOUT
1. VIN
VIN 1.
VOUT 2.
FB/ADJ 3.
On/Off 4.
8. GND
7. GND
6. GND
5. GND
Exposed
PAD
SOP-8PP
TO-263-5L
TO-220-5L
PIN DESCRIPTION
TO-263 / TO-220 5 LEAD
Name Function
SOP-8PP 8 LEAD
Pin No.
Pin No.
Name
Function
1
2
VIN
Input Supply
1
2
VIN
Input Supply
Output Voltage
VOUT
Output Voltage
VOUT
Output Voltage
Feedback
3
GND
Ground
3
FB / ADJ
or Output Adjust
Output Voltage
Feedback
or Output Adjust
ON/OFF
Shutdown
4
5
FB / ADJ
ON/OFF
4
ON/OFF
GND
ON/OFF
Shutdown
5 / 6 / 7 / 8
Ground
* Exposed Pad of SOP8-PP package should be externally connected to GND.
TYPICAL APPLICATION
- Fixed Output Voltage Version
LM2596HV
L1
Input Voltage
Output Voltage
OUTPUT
VIN
Feed
back
ON/OFF
C1
0.1uF
GND
COUT
1000uF
CIN
100uF
C2
0.1uF
D1
- Adjustable Output Voltage Version
LM2596HV
L1
Input Voltage
Output Voltage
OUTPUT
VIN
CFF
(Option)
R2
R1
Feed
back
ON/OFF
C1
0.1uF
GND
COUT
1000uF
CIN
100uF
C2
0.1uF
D1
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
ELECTRICAL CHARACTERISTICS
Unless specified otherwise, VIN = 12V for the 3.3V, 5V and adjustable versions, ILOAD = 0.5A, VIN = 18V for 12V version.
The boldface type denotes the specifications, which apply over full operating temperature range TJ = -40 to +125°C.
PARAMETER
SYMBOL
TEST CONDITION (Note 2)
MIN.
TYP.
MAX.
UNIT
SYSTEM PARAMETERS (Note 3)
1.193
1.273
8V ≤ VIN ≤ 60V,
1.230
3.30
Feedback Voltage
VFB
LM2596HV-ADJ
V
V
V
V
0.2A ≤ ILOAD ≤ 3A
1.180
1.285
3.185
3.432
5.5V ≤ VIN ≤ 60V,
0.2A ≤ ILOAD≤ 3A
LM2596HV-3.3
LM2596HV-5.0
LM2596HV-12
3.152
3.465
4.825
5.20
8V ≤ VIN ≤ 60V,
5.00
Output Voltage
VO
0.2A ≤ ILOAD ≤ 3A
4.775
5.25
11.58
12.48
15V ≤ VIN ≤ 60V,
0.2A ≤ ILOAD ≤ 3A
12.00
11.46
12.60
Line Reg
Load Reg
Line Regulation
Load Regulation
8 ≤ VIN ≤ 60V, ILOAD = 0.2A
0.3
0.3
%
%
10mA ≤ ILOAD ≤ 3A, VIN = 12V
VIN =12V, ILOAD =3A,
LM2596HV-ADJ
79
%
VOUT = 5V
LM2596HV-3.3
LM2596HV-5.0
LM2596HV-12
VIN =12V, ILOAD =3A
77
79
83
%
%
%
η
Efficiency
VIN =12V, ILOAD =3A
VIN =15V, ILOAD =3A
DEVICE PARAMETERS
Quiescent Current
IQ
VFB=12V force driver off (Note 6)
5
8
mA
nA
-250
-70
Feedback Bias
Current
IFB
VFB=1.3V (Adjustable version only)
-450
30
220
280
168
180
Shutdown Supply
Current
ISTB
VON/OFF=5V, VIN=60V
uA
133
150
(Note 8)
Oscillator Frequency
FOSC
KHz
KHz
120
Oscillator Frequency
of short Circuit Protect
When VOUT < 40% from nominal,
IOUT=CL (Note 8)
FSCP
50
Max. duty Cycle
Min. duty Cycle
DC(MAX.)
DC(MIN.)
VFB=0V force driver on (Note 5)
100
%
VFB=12V force driver off
0
(VFB=15V, For 12V Version)
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
4.1
5.3
6.7
A
Peak Current. No outside circuit.
VFB=0V (Note 4, 8)
Current Limit
CL
VSAT
IL
3.8
7.0
1.35
1.50
V
IOUT=3A. No outside circuit.
VFB=0V (Note 4)
Saturation Voltage
1.70
Output Leakage
Current
VOUT=0V. No outside circuit.
VFB=12V (Note 6, 7)
-300
-30
0.6
-5
-50
-3
uA
Output Leakage
Current
VOUT=-1V. No outside circuit.
VFB=12V (Note 6, 7)
IL1
mA
ON/OFF
VTH
1.3
2.0
5
V
Input Threshold
IH
VON/OFF=2.5V
VON/OFF=0.5V
TJ
-0.1
-0.01
160
uA
uA
ON/OFF
Input Current
IL
-1
1
Thermal Shutdown
Temperature
TSD
Note 1. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test
conditions, see the Electrical Characteristics.
Note 2, All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face).
Note 3, External components such as the schottky diode, inductor, input and output capacitors can affect switching regulator system
performance. When the 2596HV is used as shown in the Figure 2 test circuit, system performance will be as shown in system
parameters section of Electrical Characteristics.
Note 4. Output pin sourcing current. No diode, inductor or capacitor connected to output.
Note 5. Feedback pin removed from output and connected to 0V.
Note 6. Feedback pin removed from output and connected to +12V for the Adjustable, 3.3V, and 5V, versions, and +25V for the 12V and 15V
versions, to force the output transistor OFF.
Note 7. VIN =60V.
Note 8. The oscillator frequency reduces to approximately 50KHz in the event of an output short or an overload which causes the regulated
output voltage to drop approximately 40% from the nominal output voltage. This self protections feature lowers the average power
dissipation of the IC by lowering the minimum duty cycle from 5% down to approximately 2%.
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
TYPICAL OPERATING CHARACTERISTIC
Efficiency vs. IOUT
Load Regulation vs. IOUT
FOSC vs. TJ
Line Regulation vs. VIN
VOUT vs. TJ
VSAT vs. IOUT
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
IQ vs. VIN
ISTB vs. VIN
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
APPLICATION INFORMATION
As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring
inductance generate voltage transients which can cause problems. For minimal inductance and ground loops,
the length of the wires should be kept as short as possible. Single-point grounding or ground plane
construction should be used for best results. Keep the feedback wiring away from the inductor flux
- Fixed Output Voltage Version
LM2596HV
L1
Input Voltage
Output Voltage
OUTPUT
VIN
Feed
back
ON/OFF
C1
0.1uF
GND
COUT
1000uF
CIN
100uF
C2
0.1uF
D1
[Figure 1]
- Adjustable Output Voltage Version
LM2596HV
L1
Input Voltage
Output Voltage
OUTPUT
VIN
CFF
(Option)
R2
R1
Feed
back
ON/OFF
C1
0.1uF
GND
COUT
1000uF
CIN
100uF
C2
0.1uF
D1
[Figure 2]
R2
R1
*
VOUT = V (1+
)
FB
where VFB = 1.23V, R1 between 1KΩ and 5KΩ.
Feb. 2020 – R1.1
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HTC
60V, 3A, 150kHz, Step-down Switching Regulator
LM2596HV
REVISION NOTICE
The description in this datasheet can be revised without any notice to describe its electrical characteristics
properly.
Feb. 2020 – R1.1
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HTC
相关型号:
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IC 7.5 A SWITCHING REGULATOR, 173 kHz SWITCHING FREQ-MAX, PSSO5, TO-263, 5 PIN, Switching Regulator or Controller
NSC
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