Document
Semiconductor
S1117-xxPI
Fixed LDO Voltage Regulator
Descriptions
The S1117 series of positive fixed regulators are designed to provide 1A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 700mV input to output differential and the dropout voltage is fully specified as a function of load current. Dropout voltage of the device is 100mV at light loads and rising to 700mV at maximum output current. A second low current input is required to achieve this dropout. The S1117 can also be used as a single supply device.
Features
• Output Current of 1A • 1.3V Maximum Dropout voltage at 1A Output Current • 100% Thermal Limit Burn-In • Fast Transient Response
Ordering Information
Type NO. S1117xxPI Marking S1117□□PI Package Code TO-220F
□□:Voltage Code (15:1.5V,18V:1.8V, 25:2.5V, 285:2.85V, 33:3.3V, 50:5.0V)
Outline Dimensions
unit : mm
PIN Connections 1. GND 2. Output 3. Input
KSI-2022-006
1
S1117-xxPI
Absolute Maximum Ratings
Characteristic
Operating Input voltage
Ta=25°C
Symbol
VIN
Ratings
Vout=1.5,1.8 Vout= 2.5 2.8 3.3 5.0
Unit
16 20 V
Power Dissipation (Tc=25°C) Power Dissipation (without Heatsink) Operating Junction Temperature Storage Temperature
PD PD TOPR TSTG
20.8 2.0 -30 ~ 125 -55 ~ 150
W W °C °C
Electrical Characteristics
(TJ = 0 to 125℃, Cin=10uF, Cout=10uF unless otherwise specified.)
Characteristic
Output Voltage Line Regulation Load Regulation Quiescent Current Dropout Voltage Ripple Rejection Output Noise Voltage Output Current
Symbo l
VOUT △VOUT △VOUT IQ VD RR eN IOUT
Test Condition
VIN = (Vout+1.5V), IOUT = 10mA, Tj = 25°C VIN = (Vout+1.5V) to 12V IOUT = 0 to 1000mA (Vout+1.5V)≤ Vin≤12V, IOUT=10mA (VIN - Vout)=2V, 10mA ≤IOUT≤1A VIN= 11.5V, IOUT=0mA IOUT =1000mA VIN-VOUT=3V, f=120Hz, IOUT=1000mA f=10 to 10KHz, Tj = 25°C VIN-VOUT = 3V, Tj = 25°C
S1117-15PI Min
1.47 1.44 60 1000
Typ
1.5 10 10 3.6 1.2 72 100 1500
Max
1.53 1.56 30 30 10 1.3 -
Unit
V mV mV mA V dB uV mA
-
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into separately.
KSI-2022-006
2
S1117-xxPI
Electrical Characteristics
(TJ = 0 to 125℃, Cin=10uF, Cout=10uF unless otherwise specified.)
Characteristic
Output Voltage Line Regulation Load Regulation Quiescent Current Dropout Voltage Ripple Rejection Output Noise Voltage Output Current
Symbol
VOUT △VOUT △VOUT IQ VD RR eN IOUT
Test Condition
VIN = (Vout+1.5V), IOUT = 10mA, Tj = 25°C VIN = (Vout+1.5V) to 12V IOUT = 0 to 1000mA (Vout+1.5V)≤ Vin≤12V, IOUT=10mA (VIN - Vout)=2V, 10mA ≤IOUT≤1A VIN= 11.8V, IOUT=0mA IOUT =1000mA VIN-VOUT=3V, f=120Hz, IOUT=1000mA f=10 to 10KHz, Tj = 25°C VIN-VOUT = 3V, Tj = 25°C
S1117-18PI Min
1.764 1.728 -60 1000
Typ
1.8 10 10 4.2 1.2 72 100 1500
Max
1.836 1.872 30 30 10 1.3 -
Unit
V mV mV mA V dB uV mA
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into separately.
KSI-2022-006
3
S1117-xxPI
Electrical Characteristics
(TJ = 0 to 125℃, Cin=10uF, Cout=10uF unless otherwise specified.)
Characteristic
Output Voltage Line Regulation Load Regulation Quiescent Current Dropout Voltage Ripple Rejection Output Noise Voltage Output Current
Symbol
VOUT △VOUT △VOUT IQ VD RR eN IOUT
Test Condition
VIN = (Vout+1.5V), IOUT = 10mA, Tj = 25°C VIN = (Vout+1.5V) to 12V IOUT = 0 to 1000mA (Vout+1.5V)≤ Vin≤12V, IOUT=10mA (VIN - Vout)=2V, 10mA ≤IOUT≤1A VIN= 10V, IOUT=0mA IOUT =1000mA VIN-VOUT=3V, f=120Hz, IOUT=1000mA f=10 to 10KHz, Tj = 25°C VIN-VOUT = 3V, Tj = 25°C
S1117-25PI Min
2.45 2.4 60 1000
Typ
2.5 10 10 5.2 1.2 72 100 1500
Max
2.55 2.6 30 30 10 1.3 -
Unit
V mV mV mA V dB uV mA
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into separately.
KSI-2022-006
4
S1117-xxPI
Electrical Characteristics
(TJ = 0 to 125℃, Cin=10uF, Cout=10uF unless otherwise specified.)
Characteristic
Output Voltage Line Regulation Load Regulation Quiescent Current Dropout Voltage Ripple Rejection Output Noise Voltage Output Current
Symbol
VOUT △VOUT △VOUT IQ VD RR eN IOUT
Test Condition
VIN = (Vout+1.5V), IOUT = 10mA, Tj = 25°C VIN = (Vout+1.5V) to 12V IOUT = 0 to 1000mA (Vout+1.5V)≤ Vin≤12V, IOUT=10mA (VIN - Vout)=2V, 10mA ≤IOUT≤1A VIN= 10V, IOUT=0mA IOUT =1000mA VIN-VOUT=3V, f=120Hz, IOUT=1000mA f=10 to 10KHz, Tj = 25°C VIN-VOUT = 3V, Tj = 25°C
S1117-285PI Min
2.793 2.736 60 1000
Typ
2.85 10 10 5.5 1.2 72 100 1500
Max
2.907 2.964 30 30 10 1.3 -
Unit
V mV mV mA V dB uV mA
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into separately.
KSI-2022-006
5
S1117-xxPI
Electrical Characteristics
(TJ = 0 to 125℃, Cin=10uF, Cout=10uF unless otherwise specified.)
Characteristic
Output Vol.