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LM2575S-3.3T

Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN

器件类别：电源/电源管理    电源电路   

厂商名称：SEMTECH

厂商官网：http://www.semtech.com

器件标准：

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参数 预览 参数对比
器件参数
参数名称
属性值
是否无铅
含铅
是否Rohs认证
符合
厂商名称
SEMTECH
零件包装代码
D2PAK
包装说明
TO-263,
针数
4
Reach Compliance Code
unknown
ECCN代码
EAR99
模拟集成电路 - 其他类型
SWITCHING REGULATOR
控制模式
VOLTAGE-MODE
控制技术
PULSE WIDTH MODULATION
最大输入电压
40 V
最小输入电压
4 V
标称输入电压
12 V
JESD-30 代码
R-PSSO-G5
JESD-609代码
e0
长度
9.97 mm
功能数量
1
端子数量
5
最高工作温度
125 °C
最低工作温度
-40 °C
最大输出电流
3.2 A
标称输出电压
3.3 V
封装主体材料
PLASTIC/EPOXY
封装代码
TO-263
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
峰值回流温度（摄氏度）
NOT SPECIFIED
认证状态
Not Qualified
座面最大高度
4.8 mm
最大供电电流 (Isup)
12 mA
表面贴装
YES
切换器配置
BUCK-BOOST
最大切换频率
62 kHz
温度等级
AUTOMOTIVE
端子面层
TIN LEAD
端子形式
GULL WING
端子节距
1.7 mm
端子位置
SINGLE
处于峰值回流温度下的最长时间
NOT SPECIFIED
宽度
8.955 mm
文档预览
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
April 7, 1998
LM2575
LM2576
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The LM2575/6 series switching regulators are mono-
lithic integrated circuits designed for use in “buck” or
“buck/boost” regulator applications requiring accurate
output voltages over combined variations of line, load
and temperature. This unique series greatly simplifies
switching power supply design. The LM2575 has a
maximum output current of 1A and the LM2576 is
rated for 3A.
The LM2575/6 series miniconverters include a
switching regulator and compensation network all
within the same package. Just add a choke, catch
diode and two capacitors to obtain an efficient DC-to-
DC converter. Current limit and thermal shutdown
features of the LM2575/6 series fully protect the device
against overstress conditions.
The LM2575/6 series offers an alternative to popular 3
terminal linear regulators by providing higher efficiency
with reduced heatsink size. In many applications a heat
sink will not be required.
FEATURES
•
Pin for pin interchangeable with National’s
•
•
•
•
•
•
•
LM2575/LM2576 series
DC-to-DC buck or buck/boost converter requiring
only 4 support components
Fixed or adjustable voltages
Preset output voltages of 3.3, 5 and 12V
Wide output voltage range, 1.23 to 35V
82% typical efficiency @ 5V
Wide input voltage range, 4V to 40V
Inhibit/enable control pin
ABSOLUTE MAXIMUM RATINGS
Parameter
Input Voltage
On/Off Pin Input
Voltage
Output Voltage to
Common (Steady
State)
Power Dissipation
Thermal Resistance
Junction to Case
TO-220
TO-263
Thermal Resistance
Junction to Ambient
TO-220
TO-263
P
D
Symbol Maximum
V
IN
45
-0.3≤V≤V
IN
-1
Internally
Limited
Units
V
V
V
BLOCK DIAGRAM
W
θ
JC
2.0
2.0
°C/W
ORDERING INFORMATION
DEVICE
(1)
θ
JA
T
J
T
STG
T
LEAD
55
60
-40 to 125
-40 to 125
260
2
°C/W
°C
°C
°C
PACKAGE
TO-220
(2)
(3)
(2)
(3)
CURRENT
1A
LM2575T-XX
LM2575S-XX
LM2576T-XX
LM2576S-XX
Operating Junction
Temperature Range
Storage Temperature
Range
TO-263
TO-220
3A
TO-263
Lead Temperature
(Soldering) 10 Sec
ESD Class
Notes:
(1) XX = Voltage Option 3.3, 5.0, 12, and ADJ (1.23V
to 35V).
(2) T-XX = Straight in-line; T-XX-V = Vertical Stag-
gered; T-XX-H = Horizontal Staggered.
(3) Add suffix ‘TR’ for tape and reel (TO-263).
1
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
April 7, 1998
LM2575
LM2576
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, V
IN
= 12V for 3.3V, 5V and ADJ options; 25V for 12V; V
OUT
= 5V for ADJ, T
J
= 25ºC.
V
IN
rated = 40V; I
O
= 0.5 to 3A (LM2576), 0.2 to 1A (LM2575).
Test Conditions
Parameter
Output Voltage
LM2576-3.3
Symbol
V
O
8V to
V
IN
Rated
LM2576-5
V
O
8V to
V
IN
Rated
LM2576-12
V
O
15V to
V
IN
Rated
Feedback Voltage
V
OUT
= 5V
LM2576-ADJ
Feedback Bias Current
LM2576-ADJ
Output Voltage
LM2575-3.3
V
O
8V to
V
IN
Rated
LM2575-5
V
O
8V to
V
IN
Rated
LM2575-12
V
O
15V to
V
IN
Rated
Feedback Voltage
V
OUT
= 5V
LM2575-ADJ
Feedback Bias Current
LM2575-ADJ
I
B
I
FB
8V to
V
IN
Rated
12V
0.2A
O.T.
0.2A
O.T.
0.2A
O.T.
0.2A
O.T.
0.2A
O.T.
I
B
I
FB
8V to
V
IN
Rated
12V
0.5A
O.T.
3.23
3.14
3.20
4.90
4.75
4.85
11.76
11.40
11.52
1.217
1.180
1.193
3.30
3.30
3.30
5.00
5.00
5.00
12.00
12.00
12.00
1.230
1.230
1.230
0.5A
O.T.
0.5A
O.T.
0.5A
O.T.
V
IN
I
O
0.5A
O.T.
T
J
(4)
Test Limits
Min
3.23
3.14
3.20
4.90
4.76
4.85
11.76
11.40
11.52
1.217
1.180
1.193
Typ
3.30
3.30
3.30
5.00
5.00
5.00
12.00
12.00
12.00
1.230
1.230
1.230
50
Max
3.37
3.47
3.40
5.10
5.25
5.15
12.24
12.60
12.48
1.243
1.280
1.267
100
500
3.37
3.47
3.40
5.10
5.25
5.15
12.24
12.60
12.48
1.243
1.280
1.267
500
nA
V
V
V
V
nA
V
V
V
Units
V
(CONTINUED NEXT PAGE)
2
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
April 7, 1998
LM2575
LM2576
ELECTRICAL CHARACTERISTICS (cont.)
Test Conditions
Parameter
Efficiency/Option
3.3
5
12
ADJ V
O
= 5V
Switching Frequency
(1)
Test Limits
T
J
(4)
Symbol
η
V
IN
12V
I
O
LM2575-1A
LM2576-3A
Min
Typ
Max
Units
77
82
88
82
47
O.T.
43
52
52
0.9
0.9
93
4.2
O.T.
3.5
1.7
O.T.
1.3
2.2
98
5.8
6.9
7.5
3.0
3.2
58
62
1.2
1.4
%
15V
12V
F
SX
V
SAT
(3)
kHz
Saturation Voltage
LM2575-1A
LM2576-3A
O.T.
O.T.
V
Max Duty Cycle (On)
Current Limit
(1)
DC
I
CL
I
CL
(2)
%
A
Peak Current LM2576
Peak Current LM2575
A
Output Leakage Current
Output = 0V
Output = -1V
Quiescent Current
(2)
I
L
I
Q
V
IN
RATED
7.5
5
O.T.
2
30
10
12
50
O.T.
50
500
mA
mA
µA
Standby Quiescent
Current (On/Off Pin = 5V)
On/Off Pin Logic
Input Level
V
OUT
= 0V
V
OUT
= Option
On/Off Input Current
On/Off = 5V (Off)
On/Off = 0V (On)
I
STBY
V
IH
O.T.
V
IL
O.T.
2.2
2.4
1.4
1.4
1.2
1.2
1.0
0.8
V
V
I
IH
I
IL
0.5A
0.5A
12
0
30
10
µA
NOTES:
(1) Output sourcing current-resistive load, no inductor or capacitor.
(2) Feedback = V
O
+ 1.0V.
(3) Feedback = 0V.
(4) Over Temp. (O.T.) = over specified operating junction temperature range.
3
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
April 7, 1998
LM2575
LM2576
LM2575 - OPERATIONAL DATA
4
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
1.0 & 3.0 AMP MINICONVERTER
SWITCHING REGULATORS
April 7, 1998
LM2575
LM2576
LM2575 - OPERATIONAL DATA
5
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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参数对比
与LM2575S-3.3T相近的元器件有：LM2576S-5.0T、LM2576S-5.0、LM2576S-3.3T、LM2576S-12T、LM2575S-12T、LM2575S-5.0、LM2575S-5.0T。描述及对比如下：
型号 LM2575S-3.3T LM2576S-5.0T LM2576S-5.0 LM2576S-3.3T LM2576S-12T LM2575S-12T LM2575S-5.0 LM2575S-5.0T
描述 Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, BIPolar, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 7.5A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, BIPolar, PSSO5, TO-263, 5 PIN Switching Regulator, Voltage-mode, 3.2A, 62kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN
是否Rohs认证 符合 符合 不符合 符合 符合 符合 不符合 符合
零件包装代码 D2PAK D2PAK D2PAK D2PAK D2PAK D2PAK D2PAK D2PAK
包装说明 TO-263, TO-263, 5 PIN TO-263, 5 PIN TO-263, 5 PIN TO-263, TO-263, TO-263, SMSIP5H,.6,67TB TO-263,
针数 4 4 4 4 4 4 4 4
Reach Compliance Code unknown unknown unknown unknown unknown unknown unknown unknown
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
模拟集成电路 - 其他类型 SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
控制模式 VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
控制技术 PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
最大输入电压 40 V 40 V 40 V 40 V 40 V 40 V 40 V 40 V
最小输入电压 4 V 4 V 4 V 4 V 4 V 4 V 4 V 4 V
标称输入电压 12 V 12 V 12 V 12 V 25 V 25 V 12 V 12 V
JESD-30 代码 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5 R-PSSO-G5
JESD-609代码 e0 e0 e0 e0 e0 e0 e0 e3
长度 9.97 mm 9.97 mm 9.97 mm 9.97 mm 9.97 mm 9.97 mm 9.97 mm 9.97 mm
功能数量 1 1 1 1 1 1 1 1
端子数量 5 5 5 5 5 5 5 5
最高工作温度 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
最低工作温度 -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
最大输出电流 3.2 A 7.5 A 7.5 A 7.5 A 7.5 A 3.2 A 3.2 A 3.2 A
标称输出电压 3.3 V 5 V 5 V 3.3 V 12 V 12 V 5 V 5 V
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263 TO-263
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
峰值回流温度（摄氏度） NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 260
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 4.8 mm 4.8 mm 4.8 mm 4.8 mm 4.8 mm 4.8 mm 4.8 mm 4.8 mm
最大供电电流 (Isup) 12 mA 12 mA 12 mA 12 mA 12 mA 12 mA 12 mA 12 mA
表面贴装 YES YES YES YES YES YES YES YES
切换器配置 BUCK-BOOST BUCK-BOOST BUCK-BOOST BUCK-BOOST BUCK-BOOST BUCK-BOOST BUCK-BOOST BUCK-BOOST
最大切换频率 62 kHz 62 kHz 62 kHz 62 kHz 62 kHz 62 kHz 62 kHz 62 kHz
温度等级 AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
端子面层 TIN LEAD TIN LEAD Tin/Lead (Sn/Pb) TIN LEAD TIN LEAD TIN LEAD TIN LEAD MATTE TIN
端子形式 GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
端子节距 1.7 mm 1.7 mm 1.7 mm 1.7 mm 1.7 mm 1.7 mm 1.7 mm 1.7 mm
端子位置 SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE SINGLE
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
宽度 8.955 mm 8.955 mm 8.955 mm 8.955 mm 8.955 mm 8.955 mm 8.955 mm 8.955 mm
是否无铅 含铅 含铅 - 含铅 含铅 含铅 - -
厂商名称 SEMTECH SEMTECH SEMTECH SEMTECH - SEMTECH SEMTECH SEMTECH
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器件捷径:
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ
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