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SC1541CS-1.8.TRT

Fixed Positive LDO Regulator, 1.8V, 1.3V Dropout, BIPolar, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SOP-8

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
不含铅
是否Rohs认证
符合
厂商名称
SEMTECH
零件包装代码
SOIC
包装说明
SOP, SOP8,.25
针数
8
Reach Compliance Code
compliant
ECCN代码
EAR99
可调性
FIXED
最大回动电压 1
1.3 V
标称回动电压 1
1.1 V
最大绝对输入电压
7 V
最大输入电压
7 V
最小输入电压
3.2 V
JESD-30 代码
R-PDSO-G8
JESD-609代码
e3
长度
4.9 mm
最大电网调整率
0.0036%
最大负载调整率
0.0072%
功能数量
1
输出次数
1
端子数量
8
工作温度TJ-Max
125 °C
工作温度TJ-Min
最大输出电流 1
1 A
最大输出电压 1
1.836 V
最小输出电压 1
1.764 V
标称输出电压 1
1.8 V
封装主体材料
PLASTIC/EPOXY
封装代码
SOP
封装等效代码
SOP8,.25
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE
包装方法
TAPE AND REEL
峰值回流温度（摄氏度）
NOT SPECIFIED
认证状态
Not Qualified
调节器类型
FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度
1.75 mm
表面贴装
YES
技术
BIPOLAR
端子面层
Matte Tin (Sn)
端子形式
GULL WING
端子节距
1.27 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
NOT SPECIFIED
最大电压容差
2%
宽度
3.9 mm
Base Number Matches
1
文档预览
1.0A Low Dropout Voltage
Regulator with Enable
POWER MANAGEMENT
Description
The SC1541 is a high performance low dropout positive
voltage regulator designed for use in applications where
power management is critical, such as battery powered
systems.
Additionally, the SC1541 provides excellent regulation
over variations in line, load and temperature.
Outstanding features include low dropout performance
at rated current, fast transient response, internal
current limiting and thermal shutdown protection of the
output device. A very low quiescent current of 10µA in
shutdown mode reduces power dissipation.
The SC1541 is available with three different voltage
options as standard and two package options, SO-8 and
5-lead TO-263.
SC1541
Features
Low dropout performance, 1.3V max
Full current rating over line and temperature
Fast transient response
+2% total output regulation over line, load
and temperature
10µA max. quiescent current in shutdown
Three fixed output voltages
Line regulation 0.2% max.
Load regulation 0.4% max.
SO-8 and TO-263 packages
Applications
Low voltage microcontrollers
Switching power supply post-regulation
Instantly available circuits
Motherboards
Battery operated equipment
Typical Application Circuit
U1
V
IN
ENABLE SIGNAL
IN
EN
SC1541
OUT
V
OUT
GND
C1
10uF
Tantalum
C2
10uF min.
Tantalum
Notes:
(1) Input and output capacitors should be located close to the device.
(2) Connect all pins to PCB (SO-8 package) for optimal thermal characteristics.
(3) Increasing the output capacitor value will improve the overall transient response.
(4) The device is enabled when V
EN
= V
IN
, and shut down when EN is pulled to ground. EN should not be taken higher
than V
IN
. A CMOS signal referenced to V
IN
would be ideal for switching the SC1541 on and off.
Revision: November 25, 2009
1
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SC1541
POWER MANAGEMENT
Absolute Maximum Ratings
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not implied.
Parameter
Maximum Input Pin Voltage
Power Dissipation
Thermal Resistance Junction to Case
SO-8
TO-263
Thermal Resistance Junction to Ambient
SO-8
(1)
TO-263
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 Sec
Symbol
V
IN
, V
EN
P
D
θ
J C
Maximum
7
Internally Limited
39
3
65
60
0 to 125
-65 to 150
300
Units
V
W
°C/W
θ
J A
T
J
T
STG
T
LEAD
°C/W
°C
°C
°C
Note:
(1) 1 inch square of 1/16” FR-4, double sided, 1 oz. minimum copper weight.
Electrical Characteristics
Unless otherwise specified: I
O
= 0mA to 1A, V
EN
= V
IN
, 1.8V Option: V
IN
= 3.2V to 7.0V, 2.5 Option: V
IN
= 3.9V to 7.0V,
3.3V Option: V
IN
= 4.7V to 7.0V. Values in
bold
apply over full operating temperature range.
Parameter
Output Voltage
(1)
Symbol
V
OUT
V
IN
= 5V, I
OUT
= 0mA
Min
-1
-2
Typ
V
OUT
Max
+1
+2
Units
%
Line Regulation
(1)
Load Regulation
(1)
Dropout Voltage
(1)(2)
Current Limit
(1)
Quiescent Current
REG
(LINE)
REG
(LOAD)
V
D
I
CL
I
Q
I
OUT
= 10mA
V
IN
= 5V
I
OUT
= 1A
1.1
V
IN
= V
EN
= 5V
0.035
0.2
1.10
0.2
0.4
1.30
%
%
V
A
5
7
10
mA
V
IN
= 5V, V
EN
< 0.25V
6
8
10
µA
Enable Pin Control Voltage
V
EN
Device OFF
Device ON
0.25
0.45
(V
OUT
+ 0.5)
0.1
15
(V
OUT
+ 0.8)
1.0
25
V
Enable Pin Current
I
EN
V
EN
= 0V, V
IN
= 5V (OFF)
V
EN
= V
IN
= 5V (ON)
µA
2004 Semtech Corp.
2
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SC1541
PRELIMINARY
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise specified: I
O
= 0mA to 1A, V
EN
= V
IN
, 1.8V Option: V
IN
= 3.2V to 7.0V, 2.5 Option: V
IN
= 3.9V to 7.0V,
3.3V Option: V
IN
= 4.7V to 7.0V. Values in
bold
apply over full operating temperature range.
Parameter
Temperature Coefficient
Temperature Stability
RMS Output Noise
(3)
Ripple Rejection Ratio
(4)
Symbol
T
C
T
S
V
N
R
A
V
IN
= 5V
Min
Typ
0.005
0.5
0.003
Max
Units
%/C
%
%V
OUT
dB
60
72
Notes:
(1) Low duty cycle pulse testing with Kelvin connections required.
(2)
∆V
OUT
,
∆V
REF
= 1%.
(3) Bandwidth of 10 Hz to 10kHz.
(4) 120Hz input ripple.
(5) This device is ESD sensitive. Use of standard ESD handling precautions is required.
2004 Semtech Corp.
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SC1541
POWER MANAGEMENT
Pin Configurations
Ordering Information
Device
(1)(2)
SC1541CM-X.X.TR
SC1541CM-X.X.TRT
(3)
P ackag e
TO-263-5
SC1541CS-X.X.TR
SC1541CS-X.X.TRT
(3)
SO-8
SO-8
TO-263-5
PIN
1
2
3/TAB
4
5
FUNCTION
EN
GND
OUT
IN
NC
Notes:
(1) Where X.X denotes voltage options. Available
voltages are: 1.8V, 2.5V and 3.3V. Contact factory for
additional voltage options.
(2) Only available in tape and reel packaging. A reel
contains 800 (TO-263-5) or 2500 (SO-8) devices.
(3)
Halogen Free, and RoHS/WEEE compliant
.
Block Diagram
Pin Descriptions
Pin Name
EN
GND
NC
IN
OUT
SO-8 Pin #
1
2
4
3
5, 6, 7, 8
TO-263-5 Pin #
1
2
5
4
3/TAB
Pin Function
Active high enable for the regulator output. Connect to V
IN
if not being used.
Ground pin. Bottom end of the internal feedback resistor chain.
No connection.
This is the input supply pin for the device.
This is the power output of the device. This pin is electrically connected to
the tab of the TO-263-5 package.
2004 Semtech Corp.
4
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SC1541
POWER MANAGEMENT
Outline Drawing - SO-8
A
N
2X E/2
E1 E
1
ccc C
2X N/2 TIPS
2
e/2
B
D
aaa C
SEATING
PLANE
A2 A
C
bxN
bbb
A1
C A-B D
GAGE
PLANE
0.25
SEE DETAIL
SIDE VIEW
NOTES:
1.
CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H-
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
4. REFERENCE JEDEC STD MS-012, VARIATION AA.
e
D
DIM
A
A1
A2
b
c
D
E1
E
e
h
L
L1
N
01
aaa
bbb
ccc
DIMENSIONS
MILLIMETERS
INCHES
MIN NOM MAX MIN NOM MAX
-
.053
.069
-
.004
.010
-
.049
.065
-
.012
.020
-
.007
.010
.189 .193 .197
.150 .154 .157
.236 BSC
.050 BSC
-
.010
.020
.016 .028 .041
(.041)
8
-
0°
8°
.004
.010
.008
-
1.35
1.75
-
0.10
0.25
-
1.25
1.65
-
0.31
0.51
-
0.17
0.25
4.80 4.90 5.00
3.80 3.90 4.00
6.00 BSC
1.27 BSC
-
0.25
0.50
0.40 0.72 1.04
(1.04)
8
-
0°
8°
0.10
0.25
0.20
h
h
H
c
A
L
(L1)
DETAIL
01
A
Land Pattern - SO-8
(1)
X
DIM
(C)
G
Z
C
G
P
X
Y
Z
DIMENSIONS
INCHES
MILLIMETERS
(.205)
.118
.050
.024
.087
.291
(5.20)
3.00
1.27
0.60
2.20
7.40
Y
P
NOTES:
1.
THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
2. REFERENCE IPC-SM-782A, RLP NO. 300A.
Note:
(1) More copper area should be used to lower R
TH(J-A)
as needed.
2004 Semtech Corp.
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参数对比
与SC1541CS-1.8.TRT相近的元器件有：SC1541CM-3.3TRT、SC1541CS-3.3TRT、SC1541CM-2.5.TRT、SC1541CM-3.3.TRT、SC1541CS-2.5.TRT、SC1541CS-3.3.TRT、SC1541CM-1.8.TRT。描述及对比如下：
型号 SC1541CS-1.8.TRT SC1541CM-3.3TRT SC1541CS-3.3TRT SC1541CM-2.5.TRT SC1541CM-3.3.TRT SC1541CS-2.5.TRT SC1541CS-3.3.TRT SC1541CM-1.8.TRT
描述 Fixed Positive LDO Regulator, 1.8V, 1.3V Dropout, BIPolar, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SOP-8 IC REG LINEAR 3.3V 1A TO263-5 IC REG LINEAR 3.3V 1A 8SO Fixed Positive LDO Regulator, 2.5V, 1.3V Dropout, BIPolar, PSSO5, HALOGEN FREE AND ROHS COMPLIANT, TO-263, 5 PIN Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, BIPolar, PSSO5, HALOGEN FREE AND ROHS COMPLIANT, TO-263, 5 PIN Fixed Positive LDO Regulator, 2.5V, 1.3V Dropout, BIPolar, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SOP-8 Fixed Positive LDO Regulator, 3.3V, 1.3V Dropout, BIPolar, PDSO8, HALOGEN FREE AND ROHS COMPLIANT, SOP-8 Fixed Positive LDO Regulator, 1.8V, 1.3V Dropout, BIPolar, PSSO5, HALOGEN FREE AND ROHS COMPLIANT, TO-263, 5 PIN
是否无铅 不含铅 - - 含铅 含铅 不含铅 不含铅 含铅
是否Rohs认证 符合 - - 符合 符合 符合 符合 符合
零件包装代码 SOIC - - D2PAK D2PAK SOIC SOIC D2PAK
包装说明 SOP, SOP8,.25 - - TO-263, SMSIP5H,.6,67TB TO-263, SMSIP5H,.6,67TB SOP, SOP8,.25 SOP, SOP8,.25 TO-263, SMSIP5H,.6,67TB
针数 8 - - 4 4 8 8 4
Reach Compliance Code compliant - - compliant compliant compliant compliant compliant
ECCN代码 EAR99 - - EAR99 EAR99 EAR99 EAR99 EAR99
可调性 FIXED - - FIXED FIXED FIXED FIXED FIXED
最大回动电压 1 1.3 V - - 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V
标称回动电压 1 1.1 V - - 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V
最大绝对输入电压 7 V - - 7 V 7 V 7 V 7 V 7 V
最大输入电压 7 V - - 7 V 7 V 7 V 7 V 7 V
最小输入电压 3.2 V - - 3.9 V 4.7 V 3.9 V 4.7 V 3.2 V
JESD-30 代码 R-PDSO-G8 - - R-PSSO-G5 R-PSSO-G5 R-PDSO-G8 R-PDSO-G8 R-PSSO-G5
JESD-609代码 e3 - - e0 e3 e3 e3 e0
长度 4.9 mm - - 9.97 mm 9.97 mm 4.9 mm 4.9 mm 9.97 mm
最大电网调整率 0.0036% - - 0.005% 0.0066% 0.005% 0.0066% 0.0036%
最大负载调整率 0.0072% - - 0.01% 0.0132% 0.01% 0.0132% 0.0072%
功能数量 1 - - 1 1 1 1 1
输出次数 1 - - 1 1 1 1 1
端子数量 8 - - 5 5 8 8 5
工作温度TJ-Max 125 °C - - 125 °C 125 °C 125 °C 125 °C 125 °C
最大输出电流 1 1 A - - 1 A 1 A 1 A 1 A 1 A
最大输出电压 1 1.836 V - - 2.55 V 3.366 V 2.55 V 3.366 V 1.836 V
最小输出电压 1 1.764 V - - 2.45 V 3.234 V 2.45 V 3.234 V 1.764 V
标称输出电压 1 1.8 V - - 2.5 V 3.3 V 2.5 V 3.3 V 1.8 V
封装主体材料 PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 SOP - - TO-263 TO-263 SOP SOP TO-263
封装等效代码 SOP8,.25 - - SMSIP5H,.6,67TB SMSIP5H,.6,67TB SOP8,.25 SOP8,.25 SMSIP5H,.6,67TB
封装形状 RECTANGULAR - - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE - - SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
包装方法 TAPE AND REEL - - TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL TAPE AND REEL
峰值回流温度（摄氏度） NOT SPECIFIED - - NOT SPECIFIED 260 NOT SPECIFIED 260 NOT SPECIFIED
认证状态 Not Qualified - - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
调节器类型 FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR - - FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度 1.75 mm - - 4.83 mm 4.83 mm 1.75 mm 1.75 mm 4.83 mm
表面贴装 YES - - YES YES YES YES YES
技术 BIPOLAR - - BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
端子面层 Matte Tin (Sn) - - Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn/Pb)
端子形式 GULL WING - - GULL WING GULL WING GULL WING GULL WING GULL WING
端子节距 1.27 mm - - 2.54 mm 2.54 mm 1.27 mm 1.27 mm 2.54 mm
端子位置 DUAL - - SINGLE SINGLE DUAL DUAL 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
最大电压容差 2% - - 2% 2% 2% 2% 2%
宽度 3.9 mm - - 8.955 mm 8.955 mm 3.9 mm 3.9 mm 8.955 mm
Base Number Matches 1 - - 1 1 1 1 -
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器件捷径:
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