LT1963A - 1.5A, Low Noise, Fast Transient Response LDO ...

1 LT1963A Series , Low Noise, fast Transient Response LDO Regulators Features Description n Optimized for fast Transient Response The LT 1963A series are low dropout regulators optimized n Output current : for fast Transient Response . The devices are capable of n dropout Voltage: 340mV. supplying of output current with a dropout voltage of n Low Noise: 40 V. RMS (10Hz to 100kHz) 340mV. Operating quiescent current is 1mA, dropping to n 1mA quiescent current < 1 A in shutdown. quiescent current is well controlled; it n No Protection Diodes Needed does not rise in dropout as it does with many other regula- n Controlled quiescent current in dropout tors. In addition to fast Transient Response , the LT1963A . n Fixed Output Voltages: , , , regulators have very low output noise which makes them n Adjustable Output from to 20V. ideal for sensitive RF supply applications. n < 1 A quiescent current in Shutdown Output voltage range is from to 20V.

2 The LT1963A . n Stable with 10 F Output Capacitor*. regulators are stable with output capacitors as low as n Stable with Ceramic Capacitors*. 10 F. Internal protection circuitry includes reverse bat- n Reverse Battery Protection tery protection, current limiting, thermal limiting and n No Reverse current reverse current protection. The devices are available in n Thermal Limiting fixed output voltages of , , , and as n 5-Lead TO-220, DD, 3-Lead SOT-223 and an adjustable device with a reference voltage. The 8-Lead SO Packages LT1963A regulators are available in 5-lead TO-220, DD, 3 lead SOT-223, 8-lead SO and 16-lead TSSOP packages. Applications L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property n to Logic Power Supplies of their respective owners. Protected by Patents including 6118263, 6144250.

3 N Post Regulator for Switching Supplies *See Applications Information Section. Typical Application dropout Voltage to Regulator 400. 350. dropout VOLTAGE (mV). IN OUT 300. + + VIN > 3V 10 F* 10 F* 250. SHDN SENSE 200. *TANTALUM, 150. GND. CERAMIC OR. ALUMINUM ELECTROLYTIC 100. 1963A TA01. 50. 0. 0 OUTPUT current (A). 1963A TA02. 1963aff For more information 1. LT1963A Series Absolute Maximum Ratings (Note 1). IN Pin 20V Operating Junction Temperature Range (Note 3). OUT Pin 20V 40 C to 125 C. Input to Output Differential Voltage (Note 2).. 20V 40 C to 125 C. SENSE Pin Voltage .. 20V 55 C to 125 C. ADJ Pin Voltage .. 7V Storage Temperature 65 C to 150 C. SHDN Pin Voltage .. 20V Lead Temperature (Soldering, 10 sec).. 300 C. Output Short-Circuit Duration .. Indefinite Pin Configuration TOP VIEW. GND 1 16 GND. NC 2 15 NC. FRONT VIEW FRONT VIEW. SENSE/ OUT 3 14 IN. 5 SENSE/ADJ* 5 ADJ*. OUT 4 13 IN.

4 4 OUT 4 OUT 17. TAB IS OUT 5 12 IN. 3 GND 3 GND. GND SENSE/ADJ* 6 11 NC. 2 IN 2 IN. 1 GND 7 10 SHDN. 1 SHDN SHDN. GND 8 9 GND. Q PACKAGE TAB IS T PACKAGE. 5-LEAD PLASTIC DD GND 5-LEAD PLASTIC TO-220. FE PACKAGE. *PIN 5 = SENSE FOR *PIN 5 = SENSE FOR 16-LEAD PLASTIC TSSOP. EXPOSED PAD (PIN 17) IS GND. MUST BE. = ADJ FOR LT1963A = ADJ FOR LT1963A SOLDERED TO THE PCB. TJMAX = 150 C, JA = 30 C/ W TJMAX = 150 C, JA = 50 C/ W *PIN 6 = SENSE FOR = ADJ FOR LT1963A . TJMAX = 150 C, JA = 38 C/ W. FRONT VIEW TOP VIEW. 3 OUT OUT 1 8 IN. TAB IS SENSE/ADJ* 2 7 GND. GND 2 GND. GND 3 6 GND. 1 IN NC 4 5 SHDN. S8 PACKAGE. ST PACKAGE. 8-LEAD PLASTIC SO. 3-LEAD PLASTIC SOT-223. TJMAX = 150 C, JA = 50 C/ W *PIN 2 = SENSE FOR = ADJ FOR LT1963A . TJMAX = 150 C, JA = 70 C/ W. 1963aff 2 For more information LT1963A Series Order Information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE.

5 LT1963 AEQ#PBF LT1963 AEQ#TRPBF LT1963 AEQ 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AIQ#PBF LT1963 AIQ#TRPBF LT1963 AIQ 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AMPQ#PBF LT1963 AMPQ#TRPBF LT1963 AMPQ 5-Lead Plastic DD-Pak 55 C to 125 C. #PBF #TRPBF 5-Lead Plastic DD-Pak 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic DD-Pak 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic DD-Pak 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AET#PBF LT1963 AET#TRPBF LT1963 AET 5-Lead Plastic TO-220 40 C to 125 C. LT1963 AIT#PBF LT1963 AIT#TRPBF LT1963 AIT 5-Lead Plastic TO-220 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic TO-220 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic TO-220 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic TO-220 40 C to 125 C. #PBF #TRPBF 5-Lead Plastic TO-220 40 C to 125 C. LT1963 AEFE#PBF LT1963 AEFE#TRPBF 1963 AEFE 16-Lead Plastic TSSOP 40 C to 125 C. LT1963 AIFE#PBF LT1963 AIFE#TRPBF 1963 AIFE 16-Lead Plastic TSSOP 40 C to 125 C.

6 #PBF #TRPBF 1963 AEFE15 16-Lead Plastic TSSOP 40 C to 125 C. #PBF #TRPBF 1963 AEFE18 16-Lead Plastic TSSOP 40 C to 125 C. #PBF #TRPBF 1963 AEFE25 16-Lead Plastic TSSOP 40 C to 125 C. #PBF #TRPBF 1963 AEFE33 16-Lead Plastic TSSOP 40 C to 125 C. #PBF #TRPBF 963A15 3-Lead Plastic SOT-223 40 C to 125 C. #PBF #TRPBF 963A18 3-Lead Plastic SOT-223 40 C to 125 C. #PBF #TRPBF 963A25 3-Lead Plastic SOT-223 40 C to 125 C. #PBF #TRPBF 963A33 3-Lead Plastic SOT-223 40 C to 125 C. LT1963 AES8#PBF LT1963 AES8#TRPBF 1963A 8-Lead Plastic SO 40 C to 125 C. LT1963 AIS8#PBF LT1963 AIS8#TRPBF 1963A 8-Lead Plastic SO 40 C to 125 C. LT1963 AMPS8#PBF LT1963 AMPS8#TRPBF 963 AMP 8-Lead Plastic SO 55 C to 125 C. #PBF #TRPBF 963A15 8-Lead Plastic SO 40 C to 125 C. #PBF #TRPBF 963A18 8-Lead Plastic SO 40 C to 125 C. #PBF #TRPBF 963A25 8-Lead Plastic SO 40 C to 125 C. #PBF #TRPBF 963A33 8-Lead Plastic SO 40 C to 125 C.

7 LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE. LT1963 AEQ LT1963 AEQ#TR LT1963 AEQ 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AIQ LT1963 AIQ#TR LT1963 AIQ 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AMPQ LT1963 AMPQ#TR LT1963 AMPQ 5-Lead Plastic DD-Pak 55 C to 125 C. #TR 5-Lead Plastic DD-Pak 40 C to 125 C. #TR 5-Lead Plastic DD-Pak 40 C to 125 C. #TR 5-Lead Plastic DD-Pak 40 C to 125 C. #TR 5-Lead Plastic DD-Pak 40 C to 125 C. LT1963 AET LT1963 AET#TR LT1963 AET 5-Lead Plastic TO-220 40 C to 125 C. LT1963 AIT LT1963 AIT#TR LT1963 AIT 5-Lead Plastic TO-220 40 C to 125 C. 1963aff For more information 3. LT1963A Series order information LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE. #TR 5-Lead Plastic TO-220 40 C to 125 C. #TR 5-Lead Plastic TO-220 40 C to 125 C. #TR 5-Lead Plastic TO-220 40 C to 125 C. #TR 5-Lead Plastic TO-220 40 C to 125 C.

8 LT1963 AEFE LT1963 AEFE#TR 1963 AEFE 16-Lead Plastic TSSOP 40 C to 125 C. LT1963 AIFE LT1963 AIFE#TR 1963 AIFE 16-Lead Plastic TSSOP 40 C to 125 C. #TR 1963 AEFE15 16-Lead Plastic TSSOP 40 C to 125 C. #TR 1963 AEFE18 16-Lead Plastic TSSOP 40 C to 125 C. #TR 1963 AEFE25 16-Lead Plastic TSSOP 40 C to 125 C. #TR 1963 AEFE33 16-Lead Plastic TSSOP 40 C to 125 C. #TR 963A15 3-Lead Plastic SOT-223 40 C to 125 C. #TR 963A18 3-Lead Plastic SOT-223 40 C to 125 C. #TR 963A25 3-Lead Plastic SOT-223 40 C to 125 C. #TR 963A33 3-Lead Plastic SOT-223 40 C to 125 C. LT1963 AES8 LT1963 AES8#TR 1963A 8-Lead Plastic SO 40 C to 125 C. LT1963 AIS8 LT1963 AIS8#TR 1963A 8-Lead Plastic SO 40 C to 125 C. LT1963 AMPS8 LT1963 AMPS8#TR 963 AMP 8-Lead Plastic SO 55 C to 125 C. #TR 963A15 8-Lead Plastic SO 40 C to 125 C. #TR 963A18 8-Lead Plastic SO 40 C to 125 C. #TR 963A25 8-Lead Plastic SO 40 C to 125 C. #TR 963A33 8-Lead Plastic SO 40 C to 125 C.

9 Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: 1963aff 4 For more information LT1963A Series Electrical Characteristics The l denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25 C. (Note 3). PARAMETER CONDITIONS MIN TYP MAX UNITS. Minimum Input Voltage (Notes 4,12) ILOAD = V. ILOAD = l V. Regulated Output Voltage (Note 5) VIN = , ILOAD = 1mA V. < VIN < 20V, 1mA < ILOAD < l V. VIN = , ILOAD = 1mA V. < VIN < 20V, 1mA < ILOAD < l V. VIN = 3V, ILOAD = 1mA V. < VIN < 20V, 1mA < ILOAD < l V. VIN = , ILOAD = 1mA V. < VIN < 20V, 1mA < ILOAD < l V. ADJ Pin Voltage (Notes 4, 5) LT1963A VIN = , ILOAD = 1mA V. < VIN < 20V, 1mA < ILOAD < l V.

10 Line Regulation VIN = to 20V, ILOAD = 1mA l 6 mV. VIN = to 20V, ILOAD = 1mA l 7 mV. VIN = 3V to 20V, ILOAD = 1mA l 10 mV. VIN = to 20V, ILOAD = 1mA l 10 mV. LT1963A (Note 4) VIN = to 20V, ILOAD = 1mA l 5 mV. Load Regulation VIN = , ILOAD = 1mA to 2 9 mV. VIN = , ILOAD = 1mA to 18 mV. VIN = , ILOAD = 1mA to 2 10 mV. VIN = , ILOAD = 1mA to 20 mV. VIN = , ILOAD = 1mA to 15 mV. VIN = , ILOAD = 1mA to 30 mV. VIN = , ILOAD = 1mA to 3 20 mV. VIN = , ILOAD = 1mA to 35 mV. LT1963A (Note 4) VIN = , ILOAD = 1mA to 2 8 mV. VIN = , ILOAD = 1mA to 15 mV. dropout Voltage ILOAD = 1mA V. VIN = VOUT(NOMINAL) ILOAD = 1mA V. (Notes 6, 7, 12) ILOAD = 100mA V. ILOAD = 100mA V. ILOAD = 500mA V. ILOAD = 500mA V. ILOAD = V. ILOAD = V. GND Pin current ILOAD = 0mA mA. VIN = VOUT(NOMINAL) + 1V ILOAD = 1mA mA. (Notes 6, 8) ILOAD = 100mA mA. ILOAD = 500mA 15 25 mA. ILOAD = 80 120 mA. Output Voltage Noise COUT = 10 F, ILOAD = , BW = 10Hz to 100kHz 40 VRMS.