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LT3055IMSE-3.3#TRPBF

产品描述LT3055 Series - 500mA, Linear Regulator with Precision Current Limit and Diagnostics; Package: MSOP; Pins: 16; Temperature Range: -40°C to 85°C
产品类别电源/电源管理    电源电路   
文件大小2MB,共26页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
标准
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LT3055IMSE-3.3#TRPBF概述

LT3055 Series - 500mA, Linear Regulator with Precision Current Limit and Diagnostics; Package: MSOP; Pins: 16; Temperature Range: -40°C to 85°C

LT3055IMSE-3.3#TRPBF规格参数

参数名称属性值
Brand NameLinear Technology
是否Rohs认证符合
Objectid1954422101
零件包装代码MSOP
包装说明LEAD FREE, PLASTIC, MSOP-16
针数16
制造商包装代码MSE
Reach Compliance Codecompliant
最大回动电压 10.59 V
最大输入电压45 V
最小输入电压3.9 V
JESD-30 代码R-PDSO-G16
JESD-609代码e3
长度4.039 mm
功能数量1
端子数量16
工作温度TJ-Max125 °C
工作温度TJ-Min-40 °C
最大输出电流 10.5 A
最大输出电压 13.336 V
最小输出电压 13.234 V
标称输出电压 13.3 V
封装主体材料PLASTIC/EPOXY
封装代码HTSSOP
封装形状RECTANGULAR
封装形式SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
调节器类型FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度1.1 mm
表面贴装YES
端子面层MATTE TIN
端子形式GULL WING
端子节距0.5 mm
端子位置DUAL
宽度3 mm

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FEATURES
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LT3055 Series
500mA, Linear Regulator
with Precision Current Limit
and Diagnostics
DESCRIPTION
The
LT
®
3055
series are micropower, low noise, low dropout
voltage (LDO) linear regulators. The devices supply 500mA
of output current with a dropout voltage of 350mV. A 10nF
bypass capacitor reduces output noise to 25μV
RMS
in a
10Hz to 100kHz bandwidth and soft starts the reference.
The LT3055’s ±45V input voltage rating combined with its
precision current limit and diagnostic functions make the
IC an ideal choice for robust, high reliability applications.
A single resistor programs the LT3055’s current limit, ac-
curate to ±10% over a wide input voltage and temperature
range. Another resistor programs the LT3055’s minimum
output current monitor, useful for detecting open-circuit
conditions. The current monitor function sources a current
equal to 1/500th of output current. Logic fault pins assert
low if the LT3055 is in current limit (FAULT2), operating
below its minimum output current (FAULT1) or is in thermal
limit (both
FAULT1
and
FAULT2).
PWRGD indicates output
regulation. The TEMP pin indicates average die temperature.
The LT3055 optimizes stability and transient response
with low ESR ceramic capacitors, requiring a minimum of
3.3μF Internal protection circuitry includes current limit-
.
ing, thermal limiting, reverse battery protection, reverse
current protection and reverse output protection.
The LT3055 is available in fixed output voltages of 3.3V
and 5V, and as an adjustable device with an output voltage
range from 0.6V to 40V.
Precision Current Limit, R
IMAX
= 604Ω
550
CURRENT LIMIT FAULT THRESHOLD (mA)
540
530
520
510
500
490
480
470
460
450
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3055 TA01b
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Output Current: 500mA
Dropout Voltage: 350mV
Input Voltage Range: 1.6V to 45V
Programmable Precision Current Limit: ±10%
Output Current Monitor: 1/500th of I
OUT
Programmable Minimum I
OUT
Monitor
Temperature Monitor: 10mV/°C
FAULT Indicator: Current Limit, Thermal Limit or
Minimum I
OUT
Low Noise: 25μV
RMS
(10Hz to 100kHz)
Adjustable Output (V
REF
= V
OUT(MIN)
= 0.6V)
Output Tolerance: ±2% Over Load, Line and Temperature
Stable with Low ESR, Ceramic Output Capacitors
(3.3μF Minimum)
Shutdown Current: <1μA
Reverse Battery and Thermal Limit Protection
16-Lead 4mm
×
3mm DFN and MSOP Packages
APPLICATIONS
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Protected Antenna Supplies
Automotive Telematics
Industrial Applications (Trucks, Forklifts, etc.)
High Reliability Applications
Noise-Sensitive RF or DSP Supplies
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
5V Supply with 497mA Precision Current Limit, 10mA I
MIN
V
IN
6V
V
OUT(NOMINAL)
= 5V
+
10µF
200k
200k
200k
IN
LT3055-5
OUT
SENSE
ADJ
I
MON
10nF
10µF
5V
SHDN
FAULT1
FAULT2
PWRGD
I
MAX
V
IN
= 7V
V
IN
= 5.6V
22nF
604
(THRESHOLD = 497mA)
1k
(ADC
FULL-SCALE = 1V)
0.1µF
TO
µP
ADC
TO
µP
ADC
0.1µF
120k
(THRESHOLD = 10mA)
TEMP
I
MIN
REF/BYP
GND
10nF
3055 TA01a
Rev. B
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For more information
www.analog.com
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