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AIC1596A-25CT

AIC1596A-25CT

  • 厂商:

    AIC(沛亨半导体)

  • 封装:

  • 描述:

    AIC1596A-25CT - 3A STEP-DOWN PWM REGULATOR - Analog Intergrations Corporation

  • 数据手册
  • 价格&库存
AIC1596A-25CT 数据手册
ADVANCED INFORMATION AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 ! FEATURES " " " ! DESCRIPTION The AIC1596 series are step-down monolithic PWM regulators delivering 3A at fixed voltages of 2.5V , 3.3V, 5.0V , 12V and using a external divider to adjust output voltage from 1.25V to 30V with excellent line and load regulation. Switching frequency up to 150KHz/300KHz are achievable thus allowing smaller sized filter components. Internal current limit and thermal shutdown circuits provide protection from overloads. It also provides output overvoltage and short protection under fault conditions. The internal precious reference combined with " " " " " " " " Operating Input Voltage From 4.5V to 36V 2.5V, 3.3V, 5V , 12V and Adjustable Output Version Adjustable Version Output Voltage Range , 1.25V to 30V ± 4% max Over Line and Load Regulation Available in TO220-5 and TO263-5 Package Requires Only 4 External Components. 150KHz/300KHz Fixed Constant Frequency Low Power Standby Mode, IQ Typically 80µA TTL Shutdown Capability. Output Overvoltage Protection Current Limit and Thermal Shutdown Protection. 3A Guaranteed Output Current ! APPLICATIONS " " " voltage feedback loop provides optimum output voltage accuracy and fast load transient response. Packages available are in standard TO220-5 for standard assembly and TO263-5 for SMD. Simple High Efficiency Step-down regulator On-Card Switching regulators Fixed Voltage power supply for LCD Monitor ! TYPICAL APPLICATION CIRCUIT 1 VIN C1 + C2 AIC1596 5 SHDN GND 3 FB 4 D1 IN OUT 2 L1 C3 + R1 VOUT R2 R1 short and R2 open for fixed switching output version 3A Precision PWM DC/DC Regulator ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 1 AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 ! ORDERING INFORMATION AIC1596X- XXCX  ORDER NUMBER PIN CONFIGURATION PACKAGE TYPE M: TO263-5 T: TO220-5 OUTPUT VOLTAGE DEFAULT: Adj. 25: 2.5V 33: 3.3V 50: 5.0V 12: 12.0V FREQUENCY VERSION A: 150KHZ B: 300KHZ AIC1596A(B)CM AIC1596A(B)-25CM AIC1596A(B)-33CM AIC1596A(B)-50CM AIC1596A(B)-12CM (TO263-5) FRONT VIEW 1: IN 2. OUT 3. GND 4. FB 5. SHDN 12 3 4 5 AIC1596A(B)CT AIC1596A(B)-25CT AIC1596A(B)-33CT AIC1596A(B)-50CT AIC1596A(B)-12CT (TO220-5) FRONT VIEW 1: IN 2. OUT 3. GND 4. FB 5.SHDN 12345 ! ABSOLUTE MAXIMUM RATINGS Supply Voltage ……………..……………......……………...............……………….............36V FB, SHDN Pin Input Voltage……………..……….......…………….…………….................25V Operating Temperature Range …….………..……...............…….…………....... 0°C ~ 70°C Storage Temperature Range ……...................……..…….…………………. –65°C ~ 150°C ! TEST CIRCUIT Refer to Typical Application Circuit. ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 2 AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 ELECTRICAL CHARACTERISTICS (TJ=25°C, VIN=18V) PARAMETER Input Voltage Fixed Output Voltage AIC1596-25 (VIN > 4.5V) AIC1596-33 (VIN > 4.5V) AIC1596-50 (VIN > 7.0V ) AIC1596-12 (VIN > 15V ) Feedback Voltage Output Voltage Regulation Quiescent Current Shutdown Quiescent Current Logic Input High Logic Input Low Oscillator Frequency Oscillator Frequency Output Current Limit Over Voltage Protection Maximum Duty Cycle Efficiency Vo=5V , Io=3A 100 90 Internal switch off SHDN = 5V (OFF) (Regulator OFF) (Regulator ON ) AIC1596A series AIC1596B series 3.0 120 150 300 KHz A % % % 2 0.8 1 80 AIC1596 Adjustable TEST CONDITIONS MIN. 4.5 TYP. MAX. 36 UNIT V V V V V V 2.5 3.3 5.0 12.0 1.25 4 5 % mA µA V V ! PIN DESCRIPTIONS PIN 1: IN Supply voltage input for the IC switching regulator. A suitable input bypass capacitor must be present at this pin to minimize voltage transients and to supply the switching currents needed by the regulator. Internal switch. The voltage at this pin switches between (VIN-VSAT) and approximately –0.5V, with a duty cycle of approximately VOUT/VIN. Ground requires a short, low noise connection to ensure good load regulation. PIN 4: FB Feedback input for fixed-output or adjustable-output version. Connect directly to output for fixed operation version or to a resistor divider for adjustable operation versions. PIN 5: SHDN Allows the switching regulator circuit to be shutdown using logic level signals thus dropping the total input supply current to approximately 80µA. Drive it high to disable the reference, control circuitry and internal switches. Drive low or connect to GND for normal operation. PIN 2:OUT PIN 3: GND  ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 3 AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 ! BLOCK DIAGRAM SHDN IN 1.25 V Reference FB Current Limit COMP. AMP. COMP. 2.5V Regulator ON / OFF Compensation Circuit Latch Driver OUT 150/300 KHz OSC Thermal Shutdown GND ! " PHYSICAL DIMENSIONS TO-263-5L (unit: mm) SYMBOL A E L2 A MIN 4.07 1.45 0.36 1.14 8.63 9.78 0.71 15.11 2.28 - MAX 4.83 1.96 0.64 1.40 9.66 10.54 1.02 15.59 2.80 1.40 B C C2 D E L1 D L E L L1 L2 B e C ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 4 AIC1596 3A STEP-DOWN PWM REGULATOR SPEC NO: DS-1596-P1 03/23/00 " TO-220-5 (unit: mm) E A F H1 D L e e2 J1 SYMBOL A D E e e1 e2 F H1 J1 L MIN 4.06 8.35 9.78 1.57 0.76 0.33 1.14 5.46 2.29 13.21 MAX 4.83 8.89 10.54 1.85 1.02 0.64 1.40 6.86 3.18 14.73 ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 5
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