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LR18120G-25-S08-R

Fixed Positive LDO Regulator, 2.5V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, SOP-8

器件类别：电源/电源管理    电源电路   

厂商名称：UNISONIC TECHNOLOGIES CO.,LTD

厂商官网：http://www.unisonic.com.tw/

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Rohs认证
符合
厂商名称
UNISONIC TECHNOLOGIES CO.,LTD
零件包装代码
SOIC
包装说明
HALOGEN FREE, SOP-8
针数
8
Reach Compliance Code
compliant
ECCN代码
EAR99
可调性
FIXED/ADJUSTABLE
最大回动电压 1
0.32 V
标称回动电压 1
0.25 V
最大绝对输入电压
7 V
最大输入电压
5.5 V
最小输入电压
1.4 V
JESD-30 代码
R-PDSO-G8
长度
4.92 mm
最大负载调整率
0.025%
最大负载调整率 (%)
1%
功能数量
1
输出次数
1
端子数量
8
工作温度TJ-Max
150 °C
最高工作温度
85 °C
最低工作温度
-40 °C
最大输出电流 1
2 A
最大输出电压 1
2.55 V
最小输出电压 1
2.45 V
标称输出电压 1
2.5 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
1.96 mm
表面贴装
YES
技术
CMOS
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
3.95 mm
文档预览
UNISONIC TECHNOLOGIES CO., LTD
LR18120
2A LOW DROPOUT REGULATOR
WITH ENABLE
DESCRIPTION
The UTC
LR18120
is a positive voltage regulator with high
performance. It has low dropout voltage and low input voltage,
besides its output voltage can be fixed at 1.2V, 1.5V, 1.8V, or 2.5V
depending on internal feedback resistors or ADJ (not connected to the
ground) with external feedback resistors. The input voltage of UTC
LR18120
can be low to 1.4V. There are two additional pin in the
LR18120. One is EN pin and the other is POK pin.
The UTC
LR18120
is specially made for applications with low
input voltage, low dropout voltage, and low output voltage which is
almost the same as the input voltage. Typical applications include
motherboards, notebooks, set top boxes, network cards and
peripheral cards.
CMOS IC
FEATURES
* V
IN
as Low as 1.4V and V
PP
Voltage 5V
* V
D
=320mV @ I
OUT
=2A, V
OUT
=1.2V
* Internal Over Current and Over Temperature Protection
* With Enable Pin
* Output Voltage: ±2%
* 1.2V, 1.5V, 1.8V and 2.5V Output Voltage
Adjustable Externally Using Resistors
* When Disable V
OUT
Pull Low Resistance
ORDERING INFORMATION
Ordering Number
LR18120G-xx-S08-R
LR18120G-xx-SH2-R
Package
SOP-8
HSOP-8
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 8
QW-R502-305.B
LR18120
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
12:1.2V
15:1.5V
18:1.8V
25:2.5V
MARKING
CMOS IC
SOP-8
HSOP-8
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
1
2
PIN NAME
POK
V
EN
DESCRIPTION
This pin will Indicate high under this situation: V
O
reaches 92% of its rating voltage.
Open-drain output.
The enable control Input pin. As while as this pin’s voltage falls below 0.4V ,the
LR18120 will stop working. When there’s nothing connected with this pin,the device
will be enabled.
The pin of input voltage.
Placing large capacitance closely to this pin is necessary. There should be
connected a 10µF ceramic capacitor.
This pin is for input voltage to control circuit.
Connected nothing.
The voltage output pin.
When this pin connected to the ground,V
OUT
will be set by the internal feedback
resistors. Otherwise, if using external feedback resistors to decide the V
OUT
, V
OUT
=
0.8(R1+R2)/R2 Volts.
Ground.
3
4
5
6
7
8
V
IN
V
PP
NC
V
OUT
ADJ
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R502-305.B
LR18120
BLOCK DIAGRAM
CMOS IC
+
-
+
-
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 8
QW-R502-305.B
LR18120
ABSOLUTE MAXIMUM RATING
PARAMETER
CMOS IC
UNIT
V
°C
°C
°C
SYMBOL
RATINGS
Input Voltage
V
PP
, V
IN
7
Power Dissipation
P
D
Internally limited
Junction Temperature
T
J
150
Ambient Operation Temperature
T
OPR
-40~ +85
Storage Temperature
T
STG
-65~ +150
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
V
IN
Voltage
V
PP
Voltage
Ambient Operation Temperature
SYMBOL
V
IN
V
PP
T
OPR
SYMBOL
SOP-8
HSOP-8
SOP-8
HSOP-8
θ
JA
θ
JC
RATINGS
1.4 ~5.5
4.5~5.5
-40°C
≤T
OPR
≤
+85°C
RATINGS
150
143
20
14
UNIT
V
V
°C
UNIT
°C/W
°C/W
°C/W
°C/W
THERMAL DATA
PARAMETER
Junction to Ambient
Junction to Case
ELECTRICAL CHARACTERISTICS
V
PP
=5V, V
IN
=3.3V, V
EN
=V
PP
, I
OUT
=10mA, C
IN
=10µF, C
OUT
=10µF, T
A
=T
J
=25°C unless otherwise specified.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
V
IN
Input Voltage Range
V
IN
1.4
5.5
Quiescent Current (Ground Current)
I
Q
V
OUT
=2.5V
1
2
V
PP
V
PP
Voltage Range
V
PP
4.5
5.5
I
PPH
V
OUT
=2.5V
0.23
0.5
V
PP
Current
V
EN
=0V
36
60
I
PPL
V
OUT
Output Voltage (Internal Fixed Voltage)
V
OUT
V
IN
= V
OUT
+0.5V, V
OUT
=2.5V
2.45
2.5
2.55
Line Regulation
ΔV
OUT
ΔV
IN
× V
OUT
UNIT
V
mA
V
mA
μA
V
%
V
IN
=( V
OUT
+0.5V) ~ 5V
0.2
1
Load Regulation
ΔV
OUT
10mA≤I
OUT
≤2A
0.2
1
%
Dropout Voltage
V
D
I
OUT
=2A
250
320
mV
Short Circuit Current
1.4
A
V
OUT
Pull Low Resistance
V
EN
=0V
90
Ω
ADJ
Reference Voltage
V
REF
V
ADJ
= V
OUT
0.788 0.8 0.812
V
Adjust Pin Current
I
ADJ
20
100
nA
Adjust Pin Threshold
0.15
0.2
0.25
V
VEN
V
EN
Pin Voltage High
V
H(EN)
1.6
V
V
EN
Pin Voltage Low
V
L(EN)
0.4
V
V
EN
Pin Bias Current
I
BIAS(EN)
V
EN
=0V
12
40
μA
POK
V
OUT
Power OK Voltage
V
THPOK
92
%
Hysteresis
V
HYPOK
7
%
Over Temperature Protection
Over Temperature
T
OT
150
°C
Over Temperature Hysteresis
T
OTHY
30
°C
Note: Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 8
QW-R502-305.B
LR18120
TYPICAL APPLICATION CIRCUIT
CMOS IC
0.8(R1 + R2)
R2
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 8
QW-R502-305.B
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参数对比
与LR18120G-25-S08-R相近的元器件有：LR18120G-15-S08-R、LR18120G-25-SH2-R、LR18120G-15-SH2-R、LR18120G-18-SH2-R、LR18120G-12-S08-R、LR18120G-12-SH2-R、LR18120G-18-S08-R。描述及对比如下：
型号 LR18120G-25-S08-R LR18120G-15-S08-R LR18120G-25-SH2-R LR18120G-15-SH2-R LR18120G-18-SH2-R LR18120G-12-S08-R LR18120G-12-SH2-R LR18120G-18-S08-R
描述 Fixed Positive LDO Regulator, 2.5V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, SOP-8 Fixed Positive LDO Regulator, 1.5V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, SOP-8 Fixed Positive LDO Regulator, 2.5V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, HSOP-8 Fixed Positive LDO Regulator, 1.5V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, HSOP-8 Fixed Positive LDO Regulator, 1.8V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, HSOP-8 Fixed Positive LDO Regulator, 1.2V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, SOP-8 Fixed Positive LDO Regulator, 1.2V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, HSOP-8 Fixed Positive LDO Regulator, 1.8V, 0.32V Dropout, CMOS, PDSO8, HALOGEN FREE, SOP-8
是否Rohs认证 符合 符合 符合 符合 符合 符合 符合 符合
厂商名称 UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD UNISONIC TECHNOLOGIES CO.,LTD
零件包装代码 SOIC SOIC SOIC SOIC SOIC SOIC SOIC SOIC
包装说明 HALOGEN FREE, SOP-8 HALOGEN FREE, SOP-8 HALOGEN FREE, HSOP-8 HALOGEN FREE, HSOP-8 HALOGEN FREE, HSOP-8 HALOGEN FREE, SOP-8 HALOGEN FREE, HSOP-8 HALOGEN FREE, SOP-8
针数 8 8 8 8 8 8 8 8
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant compli
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
可调性 FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE FIXED/ADJUSTABLE
最大回动电压 1 0.32 V 0.32 V 0.32 V 0.32 V 0.32 V 0.32 V 0.32 V 0.32 V
标称回动电压 1 0.25 V 0.25 V 0.25 V 0.25 V 0.25 V 0.25 V 0.25 V 0.25 V
最大绝对输入电压 7 V 7 V 7 V 7 V 7 V 7 V 7 V 7 V
最大输入电压 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
最小输入电压 1.4 V 1.4 V 1.4 V 1.4 V 1.4 V 1.4 V 1.4 V 1.4 V
JESD-30 代码 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8
长度 4.92 mm 4.92 mm 4.92 mm 4.92 mm 4.92 mm 4.92 mm 4.92 mm 4.92 mm
最大负载调整率 0.025% 0.015% 0.025% 0.015% 0.018% 0.012% 0.012% 0.018%
最大负载调整率 (%) 1% 1% 1% 1% 1% 1% 1% 1%
功能数量 1 1 1 1 1 1 1 1
输出次数 1 1 1 1 1 1 1 1
端子数量 8 8 8 8 8 8 8 8
工作温度TJ-Max 150 °C 150 °C 150 °C 150 °C 150 °C 150 °C 150 °C 150 °C
最高工作温度 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °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 1 2 A 2 A 2 A 2 A 2 A 2 A 2 A 2 A
最大输出电压 1 2.55 V 1.53 V 2.55 V 1.53 V 1.836 V 1.224 V 1.224 V 1.836 V
最小输出电压 1 2.45 V 1.47 V 2.45 V 1.47 V 1.764 V 1.176 V 1.176 V 1.764 V
标称输出电压 1 2.5 V 1.5 V 2.5 V 1.5 V 1.8 V 1.2 V 1.2 V 1.8 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 SOP SOP HSOP HSOP HSOP SOP HSOP SOP
封装等效代码 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25 SOP8,.25
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, HEAT SINK/SLUG SMALL OUTLINE, HEAT SINK/SLUG SMALL OUTLINE, HEAT SINK/SLUG SMALL OUTLINE SMALL OUTLINE, HEAT SINK/SLUG SMALL OUTLINE
包装方法 TAPE AND REEL TAPE AND REEL 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 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
认证状态 Not Qualified Not Qualified 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 FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度 1.96 mm 1.96 mm 1.96 mm 1.96 mm 1.96 mm 1.96 mm 1.96 mm 1.96 mm
表面贴装 YES YES YES YES YES YES YES YES
技术 CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
端子形式 GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
端子节距 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
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
最大电压容差 2% 2% 2% 2% 2% 2% 2% 2%
宽度 3.95 mm 3.95 mm 3.95 mm 3.95 mm 3.95 mm 3.95 mm 3.95 mm 3.95 mm
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器件捷径:
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