Semiconductor S1117AQ/S1117-xxQ Adjustable and Fixed LDO Voltage Regulator Descriptions The S1117 series of positive adjustable and fixed regulators are designed to provide 1A with higher 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 S1117AQ/S1117xxQ S1117□□Q/S1117□□□Q SOT-223 □□: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 2,4. Output voltage 3. Input voltage KSI-2066-003 1 S1117AQ/S1117-xxQ Absolute Maximum Ratings Ta=25°C Characteristic Symbol Rating Unit VI 16 V PD1 (Note1) 1.5 PD2 (Note2) 0.8 TJ 150 °C Tstg -55 ~ 150 °C Input Voltage Power Dissipation Junction Temperature Storage Temperature Range W Note 1 : Mounted on a glass epoxy circuit board of 25.4 x 25.4mm. (at 1oz copper area) Note 2 : No Heat sink Device Selection Guide (NOTE3) Device Output Voltage S1117AQ Adjustable S1117-15Q 1.5V S1117-18Q 1.8V S1117-25Q 2.5V S1117-285Q 2.85V S1117-33Q 3.3V S1117-50Q 5.0V Note 3 : Other fixed versions are available Vo=1.5V to 5V KSI-2066-003 2 S1117AQ/S1117-xxQ 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 (Note4) Load Regulation (Note4) Quiescent Current Minimum Load Current Adjust Pin Current Dropout Voltage (Note6) Ripple Rejection (Note5) Current Limit △VO(△VI) All △VO(△IL) All IQC All 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 60 72 - ㏈ ILIMIT All VI-VO=1.5V, IO=1000 ㎃ VRipple=1VP-P , f=120 ㎐ (VI-VO)=1.5V * 1 A The * denotes the specifications which apply over the full temperature range. Note 4: Low duty pulse testing with Kelvin connections required. Note 5: 120 ㎐ input ripple (CADJ for ADJ=25 ㎌) Note 6: △ VO = 1% KSI-2066-003 3 S1117AQ/S1117-xxQ ■ 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-2066-003 4 S1117AQ/S1117-xxQ Electrical Characteristic Curves Fig. 4 ∆VOUT vs. Ta Fig. 5 RR vs. Frequency Fig. 6 Temperature Stability ㏈ Fig. 3 VDROP vs. IOUT Fig. 8 PD vs. Ta ㎂ Fig. 7 IADJ vs. Ta KSI-2066-003 5 S1117AQ/S1117-xxQ 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-2066-003 6