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参数资料
| 型号： | REG102UA-2.85 |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | DMOS 250mA Low-Dropout Regulator |
| 中文描述： | 的DMOS 250mA的低压差稳压器 |
| 文件页数： | 4/19页 |
| 文件大小： | 342K |
| 代理商： | REG102UA-2.85 |
REG102
SBVS024E
4
www.ti.com
ELECTRICAL CHARACTERISTICS
Boldface
limits apply over the specified temperature range,
T
J
=
–
40
°
C to +85
°
C.
At T
J
= +25
°
C, V
IN
= V
OUT
+ 1V (V
OUT
= 2.5V for REG102-A), V
ENABLE
= 1.8V, I
OUT
= 5mA, C
NR
= 0.01
μ
F, and C
OUT
= 0.1
μ
F
(1)
, unless otherwise noted.
REG102NA
REG102GA
REG102UA
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
Output Voltage Range
REG102-2.5
REG102-2.8
REG102-2.85
REG102-3.0
REG102-3.3
REG102-5
REG102-A
Reference Voltage
Adjust Pin Current
Accuracy
Over Temperature
vs Temperature
vs Line and Load
Over Temperature
V
OUT
2.5
2.8
2.85
3.0
3.3
5
V
V
V
V
V
V
V
V
μ
A
%
%
2.5
5.5
V
REF
I
ADJ
1.26
0.2
±
0.5
1
±
1.5
±
2.3
dV
OUT
/dT
50
±
0.8
ppm/
°
C
%
%
I
OUT
= 5mA to 250mA, V
= (V
+ 0.4V) to 10V
V
IN
= (V
OUT
+ 0.6V) to 10V
I
OUT
= 5mA
I
OUT
= 250mA
I
OUT
= 250mA
±
2.0
±
2.8
10
220
270
DC DROPOUT VOLTAGE
(2)
For all models
Over Temperature
V
DROP
4
mV
mV
mV
150
VOLTAGE NOISE
f = 10Hz to 100kHz
Without C
(all models)
With C
NR
(all fixed voltage models)
OUTPUT CURRENT
Current Limit
(3)
Over Temperature
Short-Circuit Current Limit
V
n
C
= 0, C
OUT
= 0
C
NR
= 0.01
μ
F, C
OUT
= 10
μ
F
23
μ
Vrms/V
V
OUT
7
μ
Vrms/V
V
OUT
μ
Vrms
μ
Vrms
I
CL
340
300
400
470
490
mA
mA
mA
I
SC
150
RIPPLE REJECTION
f = 120Hz
65
dB
ENABLE CONTROL
V
ENABLE
High (output enabled)
V
ENABLE
Low (output disabled)
I
ENABLE
High (output enabled)
I
Low (output disabled)
Output Disable Time
Output Enable Softstart Time
V
ENABLE
1.8
–
0.2
V
IN
0.5
100
100
V
V
nA
nA
μ
s
ms
I
ENABLE
V
ENABLE
= 1.8V to V
, V
= 1.8V to 6.5
(4)
V
ENABLE
= 0V to 0.5V
C
OUT
μ
F, R
LOAD
= 13
C
OUT
= 1.0
μ
F, R
LOAD
= 13
1
2
50
1.5
THERMAL SHUTDOWN
Junction Temperature
Shutdown
Reset from Shutdown
160
140
°
C
°
C
GROUND PIN CURRENT
Ground Pin Current
I
GND
I
OUT
= 5mA
I
OUT
= 250mA
V
ENABLE
≤
0.5V
400
600
0.01
500
800
0.2
μ
A
μ
A
μ
A
Enable Pin Low
INPUT VOLTAGE
Operating Input Voltage Range
(5)
Specified Input Voltage Range
Over Temperature
V
IN
1.8
10
10
10
V
V
V
V
IN
> 1.8V
V
IN
> 1.8V
V
OUT
+ 0.4
V
OUT
+ 0.6
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5 Surface-Mount
SO-8 Surface-Mount
SOT223-5 Surface-Mount
T
J
T
J
T
A
–
40
–
55
–
65
+85
+125
+150
°
C
°
C
°
C
θ
JA
θ
JA
θ
JC
θ
JA
Junction-to-Ambient
Junction-to-Ambient
Junction-to-Case
Junction-to-Ambient
200
150
15
°
C/W
°
C/W
°
C/W
°
C/W
See Figure 8
NOTES: (1) The REG102 does not require a minimum output capacitor for stability, however, transient response can be improved with proper capacitor selection.
(2) Dropout voltage is defined as the input voltage minus the output voltage that produces a 2% change in the output voltage from the value at V
IN
= V
OUT
+ 1V
at fixed load. (3) Current limit is the output current that produces a 10% change in output voltage from V
IN
= V
OUT
+ 1V and I
= 5mA. (4) For V
ENABLE
see typical characteristic I
ENABLE
vs V
ENABLE
. (5) The REG102 no longer regulates when V
IN
< V
OUT
+ V
DROP (MAX)
. In dropout, the impedance from V
IN
OUT
is
typically less than 1
at T
J
°
C.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| REG102UA-3 | 功能描述:低压差稳压器 - LDO DMOS 250 mA LDO Reg RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| REG102UA-3.3 | 功能描述:低压差稳压器 - LDO DMOS 250 mA LDO Reg RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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| REG102UA-3.3/2K5 | 功能描述:低压差稳压器 - LDO DMOS 250 mA LDO Reg RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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