AUK S1117-25PI

S1117API/S1117-xxPI
Semiconductor
Adjustable and Fixed LDO Voltage Regulator
Descriptions
The S1117 series of positive adjustable and fixed regulators are designed to provide 1A
with high efficiency. All internal circuitry is designed to operate down to 1.3V input to
output differential. On-chip trimming adjusts reference voltage to 2%.
Features
• Adjustable or Fixed output
• Output Current of 1A
• Low Dropout, 1.3V maximum at 1A Output Current
• Thermal Shutdown Protection
• Fast Transient Response
Ordering Information
Type NO.
Marking
Package Code
S1117API/S1117xxPI
S1117□□PI/ S1117□□□PI
TO-220F
□□:Voltage Code (Aj : 1.25V, 15:1.5V,:18: 1.8V, 25:2.5V, 33:3.3V, 50:5.0V)
□□□:Voltage Code (285:2.85V)
Outline Dimensions (Unit : mm )
BLOCK DIAGRAM
PIN Connections
1. GND/Adj
2. Output voltage
3. Input voltage
KSI-2068-002
1
S1117API/S1117-xxPI
Absolute Maximum Ratings
Characteristic
Ta=25°C
Symbol
Rating
Unit
Input voltage
VI
16
V
Power Dissipation
PD
2.0
W
Junction Temperature
TJ
150
°C
Tstg
-55 ~ 150
°C
Storage Temperature Range
Device Selection Guide (NOTE1)
Device
Output Voltage
S1117API
Adjustable
S1117-15PI
1.5V
S1117-18PI
1.8V
S1117-25PI
2.5V
S1117-285PI
2.85V
S1117-33PI
3.3V
S1117-50PI
5.0V
Note 1 : Other fixed versions are available VO=1.5V to 5V
KSI-2068-002
2
S1117API/S1117-xxPI
Electrical Characteristics
(Electrical Characteristics at TJ = 25℃ and VI=(VO+1.5V), IL=10 ㎃, CO=10 ㎌ unless otherwise specified.)
Characteristic
Symbol
Device
S1117A
S111715
S111718
Output Voltage
VO
S111725
S1117285
S111733
S111750
Line Regulation
(Note2)
Load Regulation
(Note2)
Quiescent
Current
Minimum Load
Current
Adjust Pin
Current
Dropout Voltage
(Note4)
Ripple Rejection
(Note3)
△VO(△VI)
All
△VO(△IL)
All
IQC
All
Current Limit
Test Condition
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
VI = (VO+1.5V),IO = 10 ㎃
VI = (VO+1.5V) to 7V
IO = 0 to 1000 ㎃
1.5V≤ VI-VO≤7V
IO=10 ㎃
VI=(VO+1.5V)
IO=10 ㎃ ~ 1000 ㎃
VI= VO + 1.5V
VADJ=0V
Min
Typ
1.225
*
1.200
1.440
1.728
2.400
2.736
3.234
*
*
*
2.600
V
2.907
2.85
3.3
3.168
4.900
1.872
2.550
2.5
2.793
*
1.560
1.836
1.8
2.450
*
1.300
1.530
1.5
1.764
*
Unit
1.275
1.25
1.470
*
Max
2.964
3.366
3.432
5.0
4.800
5.100
5.200
-
5
10
㎷
-
10
30
㎷
-
7
13
㎃
IL(MIN)
S1117A
VI=(VO+1.5V), VO=0V
*
3
7
㎃
IADJ
S1117A
VI = (VO+1.5V) to 7V
IO = 10 ㎃
*
55
90
㎂
VDROP
All
IO =1000 ㎃
*
-
1.2
1.3
V
RR
All
VI-VO=1.5V, IO=1000 ㎃
VRipple=1VP-P , f=120 ㎐
60
72
-
㏈
ILIMIT
All
(VI-VO)=1.5V
*
1
A
The * denotes the specifications which apply over the full temperature range.
Note 2: Low duty pulse testing with Kelvin connections required.
Note 3: 120 ㎐ input ripple (CADJ for ADJ=25 ㎌)
Note 4: △ VO = 1%
KSI-2068-002
3
S1117API/S1117-xxPI
■ Typical Applications
S1117A
VI
VO
(Fixed Version)
Adj/GND
CI
10㎌
CO
10㎌
RL
Fig. 1 Fixed Voltage Regulator
VI
S1117-xx
Vout=3.5V
(Fixed Version)
VO
Adj
CI
10㎌
IADJ
R1
125Ω
(1%)
CO
10㎌
R2
225Ω
(1%)
VO=VADJ * (1 + R2/R1) + IADJ*R2
Fig. 2 Adjustable Voltage Regulator
Notes:
1) CI needed if device is far from filter capacitors
2) CO minimum value required for stability
KSI-2068-002
4
S1117API/S1117-xxPI
Electrical Characteristic Curves
Fig. 4 ∆VO vs. Ta
Fig. 5 RR vs. Frequency
Fig. 6 Temperature Stability
㏈
Fig. 3 VDROP vs. IO
Fig. 8 PD vs. Ta
㎂
Fig. 7 IADJ vs. Ta
KSI-2068-002
5
S1117API/S1117-xxPI
These AUK Corp. products are intended for usage in general electronic equipment
(Office and communication equipment, measuring equipment, domestic
electrification, etc.) Please make sure that you consult with us before you use these
AUK products in equipm- ents which require high quality and/or reliability, and in
equipments which could have major impact to the welfare of human life(atomic energy
control, airplane, spaceship, traffic signal, combustion central, all types of safety
device, etc.) AUK cannot accept liability to any damage which may occur in case
these AUK products were used in the mentioned equipments without prior consultation
KSI-2068-002
6