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LP38692SDX-1.8

IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 1.6 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator

器件类别：电源电路   

厂商名称：National Semiconductor（TI ）

厂商官网：http://www.ti.com

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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
不符合
厂商名称
National Semiconductor（TI ）
包装说明
LLP-6
Reach Compliance Code
not_compliant
ECCN代码
EAR99
Is Samacsys
N
可调性
FIXED
最大回动电压 1
1.6 V
最大绝对输入电压
12 V
最大输入电压
10 V
最小输入电压
2.7 V
JESD-30 代码
S-PDSO-N6
JESD-609代码
e0
长度
3 mm
湿度敏感等级
1
功能数量
1
输出次数
1
端子数量
6
工作温度TJ-Max
125 °C
工作温度TJ-Min
-40 °C
最大输出电流 1
1 A
最大输出电压 1
1.89 V
最小输出电压 1
1.71 V
标称输出电压 1
1.8 V
封装主体材料
PLASTIC/EPOXY
封装代码
HVSON
封装等效代码
SOLCC6,.13,38
封装形状
SQUARE
封装形式
SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
包装方法
TAPE AND REEL
峰值回流温度（摄氏度）
260
认证状态
Not Qualified
调节器类型
FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度
0.8 mm
表面贴装
YES
技术
CMOS
端子面层
Tin/Lead (Sn/Pb)
端子形式
NO LEAD
端子节距
0.95 mm
端子位置
DUAL
处于峰值回流温度下的最长时间
40
最大电压容差
5%
宽度
3 mm
Base Number Matches
1
文档预览
LP38690/LP38692 1A Low Dropout CMOS Linear Regulators
Stable with Ceramic Output Capacitors
January 2005
LP38690/LP38692
1A Low Dropout CMOS Linear Regulators
Stable with Ceramic Output Capacitors
General Description
The LP38690/2 low dropout CMOS linear regulators provide
tight output tolerance (2.5% typical), extremely low dropout
voltage (450mV
@
1A load current, V
OUT
= 5V), and excel-
lent AC performance utilizing ultra low ESR ceramic output
capacitors.
The low thermal resistance of the LLP, SOT-223 and T0-252
packages allow the full operating current to be used even in
high ambient temperature environments.
The use of a PMOS power transistor means that no DC base
drive current is required to bias it allowing ground pin current
to remain below 100 µA regardless of load current, input
voltage, or operating temperature.
Dropout Voltage:
450 mV (typ)
@
1A (typ. 5V out).
Ground Pin Current:
55 µA (typ) at full load.
Precision Output Voltage:
2.5% (25˚C) accuracy.
Features
n
n
n
n
n
n
n
n
n
n
2.5% output accuracy (25˚C)
Low dropout voltage: 450mV
@
1A (typ, 5V out)
Wide input voltage range (2.7V to 10V)
Precision (trimmed) bandgap reference
Guaranteed specs for -40˚C to +125˚C
1µA off-state quiescent current
Thermal overload protection
Foldback current limiting
T0-252, SOT-223 and 6-Lead LLP packages
Enable pin (LP38692)
Applications
n
n
n
n
Hard Disk Drives
Notebook Computers
Battery Powered Devices
Portable Instrumentation
Typical Application Circuits
20126601
20126602
Note:
* Minimum value required for stability.
**LLP package devices only.
© 2005 National Semiconductor Corporation
DS201266
www.national.com
LP38690/LP38692
Connection Diagrams
20126603
TO-252, Top View
LP38690DT-X.X
20126604
SOT-223, Top View
LP38692MP-X.X
20126605
6-Lead LLP, Bottom View
LP38690SD-X.X
20126606
6-Lead LLP, Bottom View
LP38692SD-X.X
Pin Description
PIN
V
IN
GND
SNS
DESCRIPTION
This is the input supply voltage to the regulator. For LLP devices, both V
IN
pins must be tied
together for full current operation (500mA maximum per pin).
Circuit ground for the regulator. This is connected to the die through the lead frame, and also
functions as the heat sink when the large ground pad is soldered down to a copper plane.
Output sense pin allows remote sensing at the load which will eliminate the error in output
voltage due to voltage drops caused by the resistance in the traces between the regulator and
the load. This pin must be tied to V
OUT
.
The enable pin allows the part to be turned ON and OFF by pulling this pin high or low.
Regulated output voltage.
V
EN
V
OUT
Ordering Information
Order Number
LP38690SD-1.8
LP38690SD-2.5
LP38690SD-3.3
LP38690SD-5.0
LP38690DT-1.8
LP38690DT-2.5
LP38690DT-3.3
LP38690DT-5.0
LP38692SD-1.8
LP38692SD-2.5
LP38692SD-3.3
LP38692SD-5.0
LP38692MP-1.8
www.national.com
Package Marking
L113B
L114B
L115B
L116B
LP38690DT-1.8
LP38690DT-2.5
LP38690DT-3.3
LP38690DT-5.0
L123B
L124B
L125B
L126B
LJPB
Package Type
6-Lead LLP
6-Lead LLP
6-Lead LLP
6-Lead LLP
TO-252
TO-252
TO-252
TO-252
6-Lead LLP
6-Lead LLP
6-Lead LLP
6-Lead LLP
SOT-223
2
Package Drawing
SDE06A
SDE06A
SDE06A
SDE06A
TD03B
TD03B
TD03B
TD03B
SDE06A
SDE06A
SDE06A
SDE06A
MP05A
Supplied As
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
Available Soon
Available Soon
Available Soon
Available Soon
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
LP38690/LP38692
Ordering Information
Order Number
LP38692MP-2.5
LP38692MP-3.3
LP38692MP-5.0
LP38690SDX-1.8
LP38690SDX-2.5
LP38690SDX-3.3
LP38690SDX-5.0
LP38690DTX-1.8
LP38690DTX-2.5
LP38690DTX-3.3
LP38690DTX-5.0
LP38692SDX-1.8
LP38692SDX-2.5
LP38692SDX-3.3
LP38692SDX-5.0
LP38692MPX-1.8
LP38692MPX-2.5
LP38692MPX-3.3
LP38692MPX-5.0
LJRB
LJSB
LJTB
L113B
L114B
L115B
L116B
(Continued)
Package Type
SOT-223
SOT-223
SOT-223
6-Lead LLP
6-Lead LLP
6-Lead LLP
6-Lead LLP
TO-252
TO-252
TO-252
TO-252
6-Lead LLP
6-Lead LLP
6-Lead LLP
6-Lead LLP
SOT-223
SOT-223
SOT-223
SOT-223
Package Drawing
MP05A
MP05A
MP05A
SDE06A
SDE06A
SDE06A
SDE06A
TD03B
TD03B
TD03B
TD03B
SDE06A
SDE06A
SDE06A
SDE06A
MP05A
MP05A
MP05A
MP05A
Supplied As
1000 Units Tape and Reel
1000 Units Tape and Reel
1000 Units Tape and Reel
4500 Units Tape and Reel
4500 Units Tape and Reel
4500 Units Tape and Reel
4500 Units Tape and Reel
Available Soon
Available Soon
Available Soon
Available Soon
4500 Units Tape and Reel
4500 Units Tape and Reel
4500 Units Tape and Reel
4500 Units Tape and Reel
2000 Units Tape and Reel
2000 Units Tape and Reel
2000 Units Tape and Reel
2000 Units Tape and Reel
Package Marking
LP38690DT-1.8
LP38690DT-2.5
LP38690DT-3.3
LP38690DT-5.0
L123B
L124B
L125B
L126B
LJPB
LJRB
LJSB
LJTB
3
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LP38690/LP38692
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Lead Temp. (Soldering, 5 seconds)
ESD Rating (Note 3)
Power Dissipation (Note 2)
V(max) All pins (with respect to GND)
−65˚C to +150˚C
260˚C
2 kV
Internally Limited
-0.3V to 12V
I
OUT
Junction Temperature
Internally Limited
−40˚C to +150˚C
Operating Ratings
V
IN
Supply Voltage
Operating Junction
Temperature Range
2.7V to 10V
−40˚C to +125˚C
Limits in standard typeface are for T
J
= 25˚C, and limits in
boldface type
apply
over the full operating temperature range. Unless otherwise specified: V
IN
= V
OUT
+ 1V, C
IN
= C
OUT
= 10 µF, I
LOAD
= 10mA.
Min/Max limits are guaranteed through testing, statistical correlation, or design.
Symbol
Parameter
Conditions
MIN
-2.5
V
O
∆V
O
/∆V
IN
∆V
O
/∆I
L
Output Voltage Tolerance
Output Voltage Line Regulation
(Note 6)
Output Voltage Load Regulation
(Note 7)
100 µA
<
I
L
<
1A
V
O
+ 1V
≤
V
IN
≤
10V
V
O
+ 0.5V
≤
V
IN
≤
10V
I
L
= 25mA
1 mA
<
I
L
<
1A
V
IN
= V
O
+ 1V
(V
O
= 1.8V)
I
L
= 1A
(V
O
= 2.5V)
I
L
= 0.1A
I
L
= 1A
V
IN
- V
OUT
Dropout Voltage (Note 8)
(V
O
= 3.3V)
I
L
= 0.1A
I
L
= 1A
(V
O
= 5V)
I
L
= 0.1A
I
L
= 1A
I
Q
I
L
(MIN)
I
FB
PSRR
T
SD
T
SD
(HYST)
Quiescent Current
Minimum Load Current
Foldback Current Limit
Ripple Rejection
Thermal Shutdown Activation
(Junction Temp)
Thermal Shutdown Hysteresis
(Junction Temp)
V
IN
≤
10V, I
L
=100 µA - 1A
V
EN
≤
0.4V, (LP38692 Only)
V
IN
- V
O
≤
4V
V
IN
- V
O
>
5V
V
IN
- V
O
<
4V
V
IN
= V
O
+ 2V(DC), with 1V(p-p)
/ 120Hz Ripple
450
1500
55
160
˚C
10
-5.0
0.03
1.8
950
80
800
65
650
45
450
55
0.001
TYP
(Note 4)
MAX
2.5
5.0
0.1
5
1600
145
1300
110
1000
100
800
100
1
100
mA
dB
µA
mV
%V
OUT
Units
Electrical Characteristics
%/V
%/A
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4
LP38690/LP38692
Electrical Characteristics
Limits in standard typeface are for T
J
= 25˚C, and limits in
boldface type
apply
over the full operating temperature range. Unless otherwise specified: V
IN
= V
OUT
+ 1V, C
IN
= C
OUT
= 10 µF, I
LOAD
= 10mA.
Min/Max limits are guaranteed through testing, statistical correlation, or design. (Continued)
Symbol
e
n
V
O
(LEAK)
V
EN
Parameter
Output Noise
Output Leakage Current
Enable Voltage (LP38692 Only)
Conditions
BW = 10Hz to 10kHz
V
O
= 3.3V
V
O
= V
O
(NOM) + 1V
@
10V
IN
Output = OFF
Output = ON, V
IN
= 4V
Output = ON, V
IN
= 6V
Output = ON, V
IN
= 10V
I
EN
Enable Pin Leakage
V
EN
= 0V or 10V, V
IN
= 10V
1.8
3.0
4.0
-1
0.001
1
µA
MIN
TYP
(Note 4)
0.7
0.5
12
0.4
V
MAX
Units
µV/
µA
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the component 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, see Electrical Characteristics. Specifications do not
apply when operating the device outside of its rated operating conditions.
Note 2:
At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink values (if a heatsink is used). The
junction-to-ambient thermal resistance (
θ
J-A
) for the TO-252 is approximately 90˚C/W for a PC board mounting with the device soldered down to minimum copper
area (less than 0.1 square inch). If one square inch of copper is used as a heat dissipator for the TO-252, the
θ
J-A
drops to approximately 50˚C/W. The SOT-223
package has a
θ
J-A
of approximately 125˚C/W when soldered down to a minimum sized pattern (less than 0.1 square inch) and approximately 70˚C/W when soldered
to a copper area of one square inch. The
θ
J-A
values for the LLP package are also dependent on trace area, copper thickness, and the number of thermal vias used
(refer to application note AN-1187). If power disspation causes the junction temperature to exceed specified limits, the device will go into thermal shutdown.
Note 3:
ESD is tested using the human body model which is a 100pF capacitor discharged through a 1.5k resistor into each pin.
Note 4:
Typical numbers represent the most likely parametric norm for 25˚C operation.
Note 5:
If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to ground.
Note 6:
Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.
Note 7:
Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from 1mA to full load.
Note 8:
Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100mV of nominal value.
5
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参数对比
与LP38692SDX-1.8相近的元器件有：LP38690SDX-2.5、LP38692MPX-1.8、LP38692MPX-3.3、LP38692SD-5.0、LP38690SD-5.0、LP38690SD-3.3、LP38690SD-1.8、LP38692MP-2.5。描述及对比如下：
型号 LP38692SDX-1.8 LP38690SDX-2.5 LP38692MPX-1.8 LP38692MPX-3.3 LP38692SD-5.0 LP38690SD-5.0 LP38690SD-3.3 LP38690SD-1.8 LP38692MP-2.5
描述 IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 1.6 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 2.5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 1.6 V DROPOUT, PDSO5, SOT-223, 5 PIN, Fixed Positive Single Output LDO Regulator IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO5, SOT-223, 5 PIN, Fixed Positive Single Output LDO Regulator IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 1 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 1.8 V FIXED POSITIVE LDO REGULATOR, 1.6 V DROPOUT, PDSO6, LLP-6, Fixed Positive Single Output LDO Regulator IC VREG 2.5 V FIXED POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PDSO5, SOT-223, 5 PIN, Fixed Positive Single Output LDO Regulator
是否Rohs认证 不符合 不符合 不符合 不符合 不符合 不符合 不符合 不符合 不符合
厂商名称 National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ） National Semiconductor（TI ）
包装说明 LLP-6 LLP-6 SOT-223, 5 PIN SOT-223, 5 PIN LLP-6 LLP-6 LLP-6 LLP-6 SOT-223, 5 PIN
Reach Compliance Code not_compliant not_compliant not_compliant not_compliant not_compliant not_compliant not_compliant _compli _compli
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
可调性 FIXED FIXED FIXED FIXED FIXED FIXED FIXED FIXED FIXED
最大回动电压 1 1.6 V 1.3 V 1.6 V 1 V 0.8 V 0.8 V 1 V 1.6 V 1.3 V
最大绝对输入电压 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V
最大输入电压 10 V 10 V 10 V 10 V 10 V 10 V 10 V 10 V 10 V
最小输入电压 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
JESD-30 代码 S-PDSO-N6 S-PDSO-N6 R-PDSO-G5 R-PDSO-G5 S-PDSO-N6 S-PDSO-N6 S-PDSO-N6 S-PDSO-N6 R-PDSO-G5
JESD-609代码 e0 e0 e0 e0 e0 e0 e0 e0 e0
长度 3 mm 3 mm 6.5 mm 6.5 mm 3 mm 3 mm 3 mm 3 mm 6.5 mm
湿度敏感等级 1 1 1 1 1 1 1 1 1
功能数量 1 1 1 1 1 1 1 1 1
输出次数 1 1 1 1 1 1 1 1 1
端子数量 6 6 5 5 6 6 6 6 5
工作温度TJ-Max 125 °C 125 °C 125 °C 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 1 A 1 A 1 A
最大输出电压 1 1.89 V 2.625 V 1.89 V 3.465 V 5.25 V 5.25 V 3.465 V 1.89 V 2.625 V
最小输出电压 1 1.71 V 2.375 V 1.71 V 3.135 V 4.75 V 4.75 V 3.135 V 1.71 V 2.375 V
标称输出电压 1 1.8 V 2.5 V 1.8 V 3.3 V 5 V 5 V 3.3 V 1.8 V 2.5 V
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 HVSON HVSON SOP SOP HVSON HVSON HVSON HVSON SOP
封装等效代码 SOLCC6,.13,38 SOLCC6,.13,38 SOT-223-4 SOT-223-4 SOLCC6,.13,38 SOLCC6,.13,38 SOLCC6,.13,38 SOLCC6,.13,38 SOT-223-4
封装形状 SQUARE SQUARE RECTANGULAR RECTANGULAR SQUARE SQUARE SQUARE SQUARE RECTANGULAR
封装形式 SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE 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 TAPE AND REEL
峰值回流温度（摄氏度） 260 260 260 260 260 260 260 260 260
认证状态 Not Qualified 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 FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度 0.8 mm 0.8 mm 1.8 mm 1.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 1.8 mm
表面贴装 YES YES YES YES YES YES YES YES YES
技术 CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS CMOS
端子面层 Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn85Pb15) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
端子形式 NO LEAD NO LEAD GULL WING GULL WING NO LEAD NO LEAD NO LEAD NO LEAD GULL WING
端子节距 0.95 mm 0.95 mm 1.5 mm 1.5 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm 1.5 mm
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
处于峰值回流温度下的最长时间 40 40 40 40 40 40 40 40 40
最大电压容差 5% 5% 5% 5% 5% 5% 5% 5% 5%
宽度 3 mm 3 mm 3.56 mm 3.56 mm 3 mm 3 mm 3 mm 3 mm 3.56 mm
工作温度TJ-Min -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C - -
标称回动电压 1 - 0.8 V 0.95 V 0.65 V 0.45 V 0.45 V 0.65 V 0.95 V 0.8 V
最大电网调整率 - 0.0175% 0.0139% 0.02046% 0.0225% 0.0225% 0.02046% 0.0138% 0.0175%
最大负载调整率 - 0.12487% 0.0899% 0.16483% 0.24975% 0.24975% 0.16483% 0.09% 0.1249%
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器件捷径:
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