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ST1117 の電気的特性と機能

ST1117のメーカーはSemtronです、この部品の機能は「1A Low Dropout Positive Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 ST1117
部品説明 1A Low Dropout Positive Regulator
メーカ Semtron
ロゴ Semtron ロゴ 




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ST1117 Datasheet, ST1117 PDF,ピン配置, 機能
ST1117
DESCRIPTION
The ST1117 is a positive low dropout voltage
regulators with 1A output current capability.
In order to obtain lower dropout voltage and fast
transient response, which is critical for low voltage
application. The ST1117 has been optimized. The
device is available in an adjustable version and
fixed output voltage of 1.8V, 2.5V, 3.3V and 5V.
Dropout voltage is guaranteed at a maximum of
1.3V at 1A.
Current limit is trimmed to ensure specified output
current and controlled short circuit current. On-chip
thermal limiting provides protection against any
combination of overload that would creat excessive
junction temperatures.
The ST1117 is aviliable in the SOT-223 and
surface mount packages.
1A Low Dropout Positive Regulator
FEATURE
Low Dropout Performance
Ajustable or Fixed Output
Over-temperature and Over-current Protection
Current Limiting and Thermal Protection
Output Current of 1A
Rugged 2KV ESD withstand capability
Full RoHS compliance
APPLICATIONS
Battery Chargers.
Post Regulator for Switching Power Supply
Low Voltage Logic Suppliers
High Efficiency Linear Regulators
Motherboard Clock Supplies
ST1117XXA-TRG ROHS Compliant This is
Halogen Free
PIN CONFIGURATION
VIN
VOUT
GND/ADJ
SOT-223
Top View
PART NUMBER INFORMATION
ST 1117 XX A – TR G
a b cd ef
a : Company name.
b : Product Serial number.
c : Voltage Code.
XX
18 : 1.8V, 25 : 2.5V, 33 : 3.3V
ADJ : ADJ
d : Package Code
e : Handling Code
f : Lead Plating Code
G : Lead-free product
ST1117 Rev.1.3
Copyright © Semtron Microtech Corp.
1
www.semtron-micro.com

1 Page





ST1117 pdf, ピン配列
ST1117
ELECTRICAL CHARACTERISTICS(TA = 25Unless otherwise noted )
T =25°C , V =3.6V unless otherwise noted.
Symbol
Parameter
VOUT Output Voltage (1)
VREF
Reference Voltage (1)
(Adj. Version)
VSR Line Regulation (1)
VLR Load Regulation (1)
VD Dropout Voltage
Test Conditions
IOUT = 10mA, TA = 25°C
ST1117-18, 3.3VVIN8.0V
ST1117-25, 4.0VVIN8.0V
ST1117-33, 4.8VVIN8.0V
VIN = VOUT1.5V, IOUT = 10mA
VIN = VOUT1.5V to 8V
IOUT =10mA to 1A
(VOUT1.5V)VIN8.0V
IOUT =10mA to 1A
10mAIOUT1A
VIN – VOUT =1.5V
IOUT =1A
Min
1.764
2.450
3.234
1.238
1.225
-
-
-
Typ
1.80
2.50
3.30
1.250
1.250
0.1
-
1.3
ICL Current Limit
VIN – VOUT =1.5V
1.1 -
IQ Quiescent Current
VIN7V
-3
IADJ Ajust Pin Current
IOUT =10mA, VIN – VOUT =2V
-
50
TC Temperature Coefficient
- 0.5
IOUT Minimum Load Current
1.5V(VIN – VOUT)5.75V
f = 120Hz,
RA Ripple Rejection Ratio (3)
1VRMS, IOUT =400mA,
VIN – VOUT =3V
NOTES: (1) Low duty cycle pulse testing with which TJ remain unchanged.
(2) ST1117-XX.
(3) These parameters, although guaranteed, are not tested in production.
-
-
5
60
Max
1.863
2.550
3.366
1.262
1.275
0.5
1
1.4
-
5
120
-
10
70
Unit
V
V
%
%
V
A
mA
μA
%/
mA
dB
RECOMMEND OPERATING CONDITIONS
Symbol
Parameter
VIN
IOUT
CIN
COUT
TJ
Input Voltage
Load Current (With adequate heat sinking)
Input Capacitor(VIN to GND)
Output Capacitor with ESR of 10Max(VOUT to GND)
Junction Temperature
Operating Conditions
Min Typ Max
2.75 -
12
5- -
1.0 -
-
4.7
- - 150
Unit
V
mA
μF
μF
ST1117 Rev.1.3
Copyright © Semtron Microtech Corp.
3
www.semtron-micro.com


3Pages


ST1117 電子部品, 半導体
SOT-223 PACKAGE DIMENSIONS
Symbol
A
A1
A2
A3
b
b1
c
c1
D
D1
E
E1
e
L
L1
θ
θ1
Dimensions In Millimeters
Min. Max.
1.500
1.800
0.030
0.090
1.450
1.750
0.800
1.000
0.690
0.780
0.680
0.740
0.300
0.350
0.290
0.310
0.630
6.700
3.000 REF
6.800
7.200
3.400
3.600
2.300 BSC
0.900
-
1.750 BSC
0° 7°
37.500 REF
ST1117
Dimensions In Inches
Min. Max.
0.059
0.071
0.001
0.004
0.057
0.069
0.031
0.039
0.027
0.031
0.027
0.029
0.012
0.014
0.011
0.012
0.025
0.264
0.118 REF
0.268
0.283
0.134
0.142
0.091 BSC
0.035
-
0.069 BSC
0° 7°
1.476 BSC
ST1117 Rev.1.3
Copyright © Semtron Microtech Corp.
www.semtron-micro.com

6 Page



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部品番号部品説明メーカ
ST1117

1A Low Dropout Positive Regulator

Semtron
Semtron


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