Features. Applications

Transcription

1 1.5A ULTRA LOW DROPOUT LINEAR REGULATOR Description The is low dropout three-terminal regulator with a typical dropout of 375mV at 1.5A output current. The provides current limit and thermal shutdown. On-chip thermal shutdown provides protection against any combination of high current and ambient temperature that would create excessive junction temperatures. The is available for 3.3V, 5.V and 12V versions now. It is available in the industry standard TO-22-3, TO-263-3, TO (1), TO (2), TO (3) and TO (4) power packages. Features Minimum Guaranteed Output Current: 1.5A Dropout Voltage: 375mV at = 1.5A Output Accuracy: 1% Low Ground Current Internal Current Limit and Thermal Protection Reversed-battery and Reversed-lead Insertion Protection Fast Transient Response Applications LCD TV Set Top Box LCD Monitor SMPS Post Regulator Laptop, Palmtop and Notebook Portable Instrumentation USB Power Supply Pin Assignments (Top View) (Top View) (Top View) GND 2 GND GND TO-22-3 TO (S Package) TO (SA Package) (Top View) (Top View) GND 2 GND 1 1 TO (1) TO (2) (Top View) (Top View) GND 2 GND 1 1 TO (3) TO (4) 1 of 16

2 Typical Applications Circuit + F 1(3) 3(2) AZ 3915 GND 2(1) + 1 F A(B) A: TO-22-3, TO (S), TO (1)/(2)/(3)/(4) B: TO (SA) Pin Description TO-22-3 / TO (S) TO (1)/(2)/(3)/(4) Pin Number TO (SA) Pin Name 1 3 Unregulated input. Function 2 1 GND The ground pin. This pin and TAB are internally connected. 3 2 Regulated output. Functional Block Diagram 1(3) 3(2) 1.24V 16V Reference + - Thermal Shutdown 2(1) GND A(B) A: TO-22-3, TO (S), TO (1)/(2)/(3)/(4) B: TO (SA) 2 of 16

3 Absolute Maximum Ratings (Note 1) Symbol Parameter Rating Unit Supply Voltage 15 V T J Maximum Operating Junction Temperature +15 C T STG Storage Temperature Range -65 to +15 C T LEAD Lead Temperature (Soldering, 1sec) +3 C ESD (Machine Model) 3 V Note: 1. Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied Exposure to Absolute Maximum Ratings for extended periods may affect device reliability. Recommended Operating Conditions Symbol Parameter Min Max Unit Supply Voltage 13.2 V T J Operating Junction Temperature C 3 of 16

4 Electrical Characteristics-3.3V (Operating Conditions: = 4.3V, = 1mA, C IN = 1µF, C OUT = 1µF, T J = +25 C, unless otherwise specified. The Boldface applies over -4 C T J +125 C.) Symbol Parameter Conditions Min Typ Max Unit Output Voltage = 1mA V 1mA 1.5A, 4.3V 8V V V RLINE Line Regulation = 1mA, 4.3V 8V 2 17 mv V RLOAD Load Regulation = 4.3V, 1mA 1.5A mv Δ/ΔT Output Voltage Temperature Coefficient = 1mA µv/ C = 1mA 8 2 mv V DROP Dropout Voltage (Note 2) Δ = 1% = 75mA 26 mv = 1.5A mv I GND Ground Current = 75mA, = 4.3V 4 2 ma = 1.5A, = 4.3V 17 ma I LIMIT Current Limit = V (Note 3) A I LOAD (MIN) Minimum Load Current 7 1 ma Notes: Output Noise Voltage (rms) 2. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its norminal value which is measured at +1V applied to. 3. = (NOMINAL) + 1V. 1Hz to 1kHz, = 1mA, C OUT = 1µF 4 µv 4 of 16

5 Electrical Characteristics-5.V (Operating Conditions: = 6V, = 1mA, C IN = 1µF, C OUT = 1µF, T J = +25 C, unless otherwise specified. The Boldface applies over -4 C T J +125 C.) Symbol Parameter Conditions Min Typ Max Unit Output Voltage = 1mA V 1mA 1.5A, 6V 8V V V RLINE Line Regulation = 1mA, 6V 8V 3 25 mv V RLOAD Load Regulation = 6V, 1mA 1.5A 1 5 mv Δ/ΔT Output Voltage Temperature Coefficient = 1mA 1 5 µv/ C = 1mA 8 2 mv V DROP Dropout Voltage (Note 2) Δ = 1% = 75mA 26 mv = 1.5A mv I GND Ground Current = 75mA, = 6V 4 2 ma = 1.5A, = 6V 17 ma I LIMIT Current Limit = V (Note 3) A I LOAD (MIN) Minimum Load Current 7 1 ma Notes: Output Noise Voltage (rms) 2. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its norminal value which is measured at +1V applied to. 3. = (NOMINAL) + 1V. 1Hz to 1kHz, = 1mA, C OUT = 1µF 4 µv 5 of 16

6 Electrical Characteristics-12V (Operating Conditions: = 13V, = 1mA, C IN = 1µF, C OUT = 1µF, T J = +25 C, unless otherwise specified. The Boldface applies over -4 C T J +125 C.) Symbol Parameter Conditions Min Typ Max Unit Output Voltage = 1mA V 1mA 1.5A, 13V 15V V V RLINE Line Regulation = 1mA, 13V 15V 3 25 mv V RLOAD Load Regulation = 13V, 1mA 1.5A 1 5 mv Δ/ΔT Output Voltage Temperature Coefficient = 1mA 1 5 µv/ C = 1mA 8 2 mv V DROP Dropout Voltage (Note 2) Δ = 1% = 75mA 26 mv = 1.5A mv I GND Ground Current = 75mA, = 13V 4 2 ma = 1.5A, = 13V 17 ma I LIMIT Current Limit = V (Note 3) A I LOAD (MIN) Minimum Load Current 7 1 ma Notes: Output Noise Voltage (rms) 2. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its norminal value which is measured at +1V applied to. 3. = (NOMINAL) + 1V. 1Hz to 1kHz, = 1mA, C OUT = 1µF 4 µv 6 of 16

7 Ground Current (ma) Ground Current (ma) Ground Current (ma) Ground Current (ma) Dropout Voltage (mv) Dropout Voltage (mv) Performance Characteristics Dropout Voltage vs. Output Current Dropout Voltage vs. Temperature Output Current (ma) =5.V Temperature ( o C) =1.5A =5.V Ground Current vs. Output Current Ground Current vs. Supply Voltage Output Current (ma) =6V =5.V Supply Voltage (V) =5.V =1mA =1mA Ground Current vs. Supply Voltage Ground Current vs. Temperature =5.V =75mA =1mA =15mA =6V =5.V =1mA Supply Voltage (V) Temperature ( o C) 7 of 16

8 Output Current Output Voltage Input Voltage Output Voltage Output Voltage (V) Output Current Output Voltage Ground Current (ma) Ground Current (ma) Performance Characteristics (Cont.) Ground Current vs. Temperature Ground Current vs. Temperature =6V =5.V =75mA =6V =5.V =1.5A Temperature ( o C) Temperature ( o C) Output Voltage vs. Temperature Load Transient C L = 1µF = 5.V =6V =5.V =1mA Temperature ( o C) Load Transient Line Transient C L = 47µF = 5.V = 1mA = 5.V 8 of 16

9 Ordering Information X - X X X Product Name Package Output Voltage Packing E1/G1 T : TO-22-3 S/SA : TO DA : TO (1)/(2)/ (3)/(4) 3.3 : Fixed Output 3.3V 5. : Fixed Output 5.V 12 : Fixed Output 12V TR : Tape & Reel Blank : Tube E1 : RoHS Compliant G1 : RoHS Compliant and Green Package TO-22-3 Temperature Range -4 to +125 C RoHS Compliant T-3.3E1 T-5.E1 Part Number RoHS Compliant and Green T-3.3G1 T-5.G1 RoHS Compliant Marking ID T- 3.3E1 T- 5.E1 RoHS Packing Compliant and Green T- Tube 3.3G1 T- 5.G1 Tube TO (S) TO (SA) TO (1)/(2)/(3)/(4) -4 to +125 C -4 to +125 C -4 to +125 C T-12E1 T-12E1 Tube S-3.3E1 S- 3.3G1 Tube S- 3.3G1 Tape & Reel S- 5.G1 Tube S- 5.G1 Tape & Reel S- 3.3TRE1 S-5.E1 S- 5.TRE1 S-3.3G1 S- 3.3TRG1 S-5.G1 S- 5.TRG1 S- 3.3E1 S- 3.3E1 S- 5.E1 S- 5.E1 S-12E1 S-12E1 Tube S- 12TRE1 S-12E1 Tape & Reel SA- 3.3TRG1 SA- 5.TRG1 SA- 12TRG1 DA- 3.3TRG1 DA- 5.TRG1 DA- 12TRG1 SA- 3.3G1 Tape & Reel SA- 5.G1 Tape & Reel SA- 12G1 Tape & Reel DA- 3.3G1 Tape & Reel DA- 5.G1 Tape & Reel DA- 12G1 Tape & Reel 9 of 16

10 Package Outline Dimensions (All dimensions in mm(inch).) (1) Package Type: TO (. 38) 1. 66(. 42) φ3. 56(. 14) 4. 6(. 16) 2.58(.12) 3.38(.133). 55(. 22) 1. 35(. 53) 1.85(.73). 2(. 8) φ1. 5(. 59) 8.52(.335) 9.52(.375) 27.88(1.98) 3.28(1.192) 14.23(.56) 16.51(.65) (. 14) 4. 82(. 19) 2. 8(. 82) 2. 88(. 113) (. 46) 1. 76(. 69). 381(. 15) (. 32) 8.763(.345) (. 1). 381(. 15) 2. 54(. 1).356 (.14).61(.24) 1 of 16

11 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (2) Package Type: TO of 16

12 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (3) Package Type: TO (1) 1.35(.53) 1.65(.65) 6.45(.254) 6.65(.262) 5.2(.25) 5.4(.213).45(.18).58(.23) 2.2(.87) 2.4(.94) 4.3(.169) 5.4(.213) 9.5(.374) 9.9(.39).6(.24).9(.35) 2.3TYP 4.5(.177) 4.7(.185).(.).127(.5) 5 5.7(.28).9(.35).5(.2).7(.28) 1.4(.55) 1.78(.7) (.18).58(.23) 5.45(.215) 6.25(.246) 2.55(.1) 2.9(.114) 3.8REF(.15REF) 4.8(.189) 6.5(.256) 12 of 16

13 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (4) Package Type: TO (2).9(.35) 1.25(.49) 6. 5(. 256) 6. 7(. 264) 5. 23(. 26) 5. 43(. 214) 1.2± REF. 47(. 19). 6(. 24) 6.(.236) 6.2(.244) 1.8REF.6(.24) 1.(.39) 1.15(.45) 1.5(.59) 5.25REF 9.8(.386) 1.4(.49) REF (. 35) 1.1(. 43) (.55) 1.7(.67) 8 2.2(.87) 2.38(.94).77(. 3) 1.1(. 433) 2.28BSC (. 3). 89(. 35) 13 of 16

14 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (5) Package Type: TO (3) 6.(.236) 6.2(.244).9(.35) 1.25(.49) 1.8REF.72(.28).9(. 35) 2.286(. 9) BSC 6.5(. 256) 6.7(. 264) 5.13(.22) 5.46(.215) (.6).75(.3) 1.29±.1 Option 1.72(.28).85(.33).6(.24) 1.(.39) 4.7REF 5.25REF 9.8(.386) 1.4(.49) 2.9REF 8 1.4(.55) 1.7(.67) 8.47(.19).6(.24) 5 9.9(.35) 1.1(.43) (.87) 2.38(.94) Option 2 14 of 16

15 Package Outline Dimensions (Cont. All dimensions in mm(inch).) (6) Package Type: TO (4) 6.35(.25) 6.73(.265) 4.96(.195) 5.46(.215).89(.35) 1.27(.5) 2.18(.86) 2.38(.94).46(.18).6(.24) 4.32(.17) MIN 2.16(.85) MIN 1.2±.5 1.7(.67) 1.9(.75) 5.97(.235) 6.22(.245) (.45) 1.492(.59) 9.94(.391) 1.34(.47) 5.21(.25) MIN.765(.3) 1.124(.44) 2.29(.9) BSC.64(.25).884(.35) (.4) MAX DETAIL A.46(.18).61(.24).65(.26).78(.31) PLATING.41(.16).56(.22) BASE METAL.64(.25).884(.35) SECTION B-B GAUGE PLANE B 1.5(.59) 1.78(.7) 1 B 2.74(.18) REF.2(.1).12(.5) SEATING PLANE 15 of 16

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