CS5201 FCI | Alldatasheet

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CS-5201 1Amp Low Dropout Positive V oltage Regulator

00000 The CS5201 series of positive adjustable

and fixed regulators are designed to provide 1A with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 700 mV input to output differential and the dropout voltage is fully specified as a function of load current. Dropout voltage of the device is 100 mV at light loads and rising to 700 mV at maximum output current. A second low current input is required to achieve this dropout. The CS5201 can also be used as single supply device Adjustable or Fixed Output. Output Current of 1A. Low Dropout, 700 mV at 1A Output Current. 0.04% Line Regulation. 0.1% Load Regulation. 100% Thermal Limit Burn-ln. Fast Transient Response. Remote Sense.

FEATURES

(3 pin version). Sym bol PD VIN TJ TSTG TLEAD Sto rag e Temp erat ure Lea d Temp erat ure( Sold erin g, 10 sec ) -65 to 15 0 300 Uni ts W V Par ame ter Pow er Diss ipat ion Inpu t Voltage Vpo wer Vco ntro l Ope ratin g Junc tion Temper atur e Rang e Con trol Se ctio n Pow er Trans isto r Max imu m Inte rnal ly Limi ted 0 to 125 0 to 150 Absolute Maximum Ratings DESCRIPTION 3 FRONT VIEW SOT-223 IN OUT ADJ/GND TAB IS VOUT FRONT VIEW T0-263 IN OUT ADJ/GND TAB IS VOUT FRONT VIEW

3 LEAD TO-220

5 LEAD TO-220

3.3v 2.5v,1A 124 124 0.1 F 10 F 150 F Typical application data 2.5V,1A regulator Load VCONTROL VPOWER V =V (1+R2/R1)+1 R2OUT REF ADJ VSENSE VOUT CS5201 Adjust

Electrical Characteristics(Note 1) Electrical Characteristics at I =0 mA and T =+25 unless otherwise specified.LOAD J The * denotes the specifications which apply over the full temperature range. Note 1:Unless otherwise specified V = V . For CS5201(adj) V = oVout sense adj Note 2:For the adjustable device the minimum load current is the minimum current roquired to maintain regulation. Normally the current in the resistor divier used to set the output voltage is selected to meet the minimum load current requiement. Note 3:The control pin current is the drive current required for the output transistor. This current will track output current with a ratio of about 1:100. Note 4:The dropout voltage for the CS5201 is caused by eithe r minimum contro l voltag e o r minimum powe r voltage. The specifications represent the minimum input/output voltage required to maintain 1% regulation. OOOO OOOO OOOO Parameter Device Min Max UnitsTypTest Conditions Reference V oltage V 2.75V,V 2V,I =10mACONTROL = POWER = LOAD V 2.7V to 12V,CONTROL = V 3.3V to 5.5V, ILOAD =10mA to 1APOWER = V =4V,V =2VCONTR OL POWER V =3V,V =3.3V ,I =0mA to 1ACONTR OL POWER LOAD V =5V,V =3.3VCONTR OL POWER V =4V,V =3.3V ,I =0mA to 1ACONTR OL POWER LOAD V =6V,V =4VCONTR OL POWER V =5V,V =4.3V , =0mA to 1ACONTR OL POWER ILOAD V =5.5V ,V =3.5VCONTR OL POWER V =4.5V ,V =3.8V ,I =0mA to 1ACONTR OL POWER LOAD V =7.5V ,V =5.5VCONTR OL POWER V =6.5V ,V =5.8V ,I =0mA to 1ACONTR OL POWER LOAD I =10mA,(1.5V+ V ) V 12V,LOAD OUT CONTROL 0.8V (V -V ) 5.5VPOWER OUT V =V +2.5V, V =V +0.8V,CONTROL OUT POWER OUT I =10mA to 1ALOAD V =V +2.5V, V =V +0.8V,CONTROL OUT POWER OUT IL =10mA to 1AOAD V =V +2.5V, V =V +0.8V,CONTROL OUT POWER OUT I =10mA to 1ALOAD V =2.75V, V =2.05 V,CONTROL POWER I =10mALOAD V =V =V +2.5V ,V =1VCONTR OL POWER OUT RIPPLE P-P , I =500m ALOAD V =V +0.8V, I =10mAPOWER OUT LOAD V =V +0.8V, I =1APOWER OUT LOAD V =V +2.5V, I =1ACONTROL OUT LOAD (V -V )=3VIN OUT V =5V,V =3.3V, V =0VCONTROL POWER ADJ V =5.8V ,V =3.8VCONTR OL POWER V =4.8V ,V =4.1V ,I =0mA to 1ACONTR OL POWER LOAD V =5.35V ,V 3.35VCONTR OL POWER = V =4.4V ,V 3.7V,I =0mAto 1ACONTR OL POWER = LOAD CS5201 CS5201 -1.5 CS5201 -2.5 CS5201 -2.85 CS5201 -3.0 CS5201 -3.3 CS5201 -3.5 CS5201 -5.0 All All All All All All All CS5201 1.238 1.250 1.262 1.230 1.250 1.270 1.485 1.475 1.500 1.500 1.515 1.525 2.475 2.460 2.500 2.500 2.525 2.540 2.821 2.805 2.850 2.850 2.879 2.895 2.970 2.950 3.000 3.000 3.030 3.050 3.267 3.247 3.300 3.300 3.333 3.353 3.465 3.445 3.500 3.500 3.535 3.555 4.950 4.920 5.000 5.000 0.04 0.20 0.08 0.40 1.7 5 5 10 50 120 1500 0.003 1.00 1.15 1.15 1.30 0.55 0.70 5.050 5.080 1000 CS5201 CS5201 TA=25 ,30ms pulse Note 4 CS5201-1.5/ -2.5/-2.85 -3.0/-3.3/-3.5 -5.0 Output V oltage Line Regulation Load Regulation Minimum Load Current (Note 2) Control Pin Current (Note 3) Ground Pin Current Adjust Pin Current Current Limit Ripple Rejection Thermal Regulation Dropout V oltage Control lnput (V - V )CONTROL OUT Power lnput (V - V )POWER OUT V V V V V V V V V V mA mA A mA mA dB %/W CS-5201 1Amp Low Dropout Positive V oltage Regulator

Pin Functions (5-Lead) Block Diagram Sense (P in 1) : T his pi n is the po sitive side of th e reference voltage. W ith thi s p in it is possible t o K elvin Sense the ou tput v oltage at the loa d. Adjust 0000000000000000 00000000 000000 (P in 2) : T his pin is the ne gative side of the reference voltage. Adding a small bypass capacitor from the Adjust pin to gro und improves the tra nsient response. For fix ed voltage de vices t he Adjust pin is als o b rought out to all ow the use r to ad d a by pass capacitor. GND (Pin 2): For fixed voltage device this is the bottom of the res istor divider that set s the output voltage. V (Pin 5): T his pin is the co llector of the po werPOWER transistor. The ou tput l oad cu rrent i s s upplied thr ough t his pin. The vo ltage a t t his pin mu st be 0.7V gre ater tha n t he output vo ltage f or the de vice to reg ulate.0000000000000000 000 V (Pin 4): This pin is the supply pin for the controlCONTROL circuitry. T he current f low int o t his pin wi ll b e a bout 1 % of the ou tput c urrent. T he voltage at th is pin m ust be 1. 3V greater th an the ou tput v oltage for th e device to re gulate. Output (Pin 3): This is the power output of the de vice. V CONTROL VOUT SENCE FOR FIXED VOLTAGE voltage For adjustable DEVICE device GND ADJ 1 VPOWER CS-5201 1Amp Low Dropout Positive V oltage Regulator

CS5201ST-1.5 CS5201T-1.5 CS5201T1-1.5 CS5201DP-1.5 CS5201ST-2.5 CS5201T-2.5 CS5201T1-2.5 CS5201DP-2.5 CS5201ST-2.85 CS5201T-2.85 CS5201T1-2.85 CS5201DP-2.85 CS5201ST-3 CS5201T-3 CS5201T1-3 CS5201DP-3 CS5201ST-3.3 CS5201T-3.3 CS5201T1-3.3 CS5201DP-3.3 CS5201ST-3.5 CS5201T-3.5 CS5201T1-3.5 CS5201DP-3.5 CS5201ST-5 CS5201T-5 CS5201T1-5 CS5201DP-5 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 SOT-223 TO-220 TO-220-5 TO-263 Adj Adj Adj Adj 1.5V 1.5V 1.5V 1.5V 2.5V 2.5V 2.5V 2.5V 2.85V 2.85V 2.85V 2.85V 3.3V 3.3V 3.3V 3.3V 3.5V 3.5V 3.5V 3.5V Output Voltage Package CS-5201 1Amp Low Dropout Positive V oltage Regulator