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| 3.0A Low Dropout Voltage Regulator Adjustable CORPORATION CLM2830 FEATURES PRODUCT DESCRIPTION The Calogic CLM2830 is a low power 3A adjustable voltage regulator that is very easy to use. It requires only 2 external resistors to set the output voltage. This device is an excellent choice for use in powering Intel microprocessors to convert from +5V to 3.3V supplies and as a post regulator for switching supplies applications. TM * Adjustable Output Down to 1.2V * Output Current of 3A * Low Dropout Voltage Regulation 0.01%(typ.) * Extremely Tight Load * Extremely Tight Line Regulation 0.015%(typ.) Limiting * Current and ThermalLow Cost TO-220 * Standard 3-Terminal * Similar to Industry Standard LT1085 * Powering Intel Pentium P from +5V Supplies * Power PC Supplies * SMPS Post-Regulator Efficiency "Green" Computer Systems * High Efficiency Linear Power Supplies * High * Portable Instrumentation * Constant Current Regulators * Adjustable Power Supplies * Battery Chargers TM TM APPLICATIONS The CLM2830 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. The IQ of this device flows into the load which increases the efficiency. The CLM2830 is offered in a 3-pin TO-220 package compatible with older 3 terminal regulators. For a 5A low dropout regulator refer to the CLM2850 data sheet. ORDERING INFORMATION PART CLM2830AU CLM2830AT PACKAGE TO-220 (3-Pin) TO-263 Plastic (3-Pin) TEMPERATURE IND. IND. For fixed output voltage contact factory. PIN CONNECTIONS PLASTIC TO-263 PACKAGE CLM2830 PLASTIC PACKAGE TO-220 CLM2830 3 2 1 V IN V OUT V ADJ VIN VOUT VADJ FRONT VIEW 1E-41 FRONT VIEW 1E-40 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CLM2830 CORPORATION ABSOLUTE MAXIMUM RATINGS Lead Temp. (Soldering, 10 Seconds) . . . . . . . . . . . . . . 300oC Storage Temperature Range . . . . . . . . . . . . . . . -65 to +150oC Operating Junction Temperature Range CLM2830 Control Section . . . . . . . . . . . . . . 0oC to +125oC CLM2830 Power Transistor . . . . . . . . . . . . . 0oC to +150oC Input Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . +30V Input to Output Voltage Differential . . . . . . . . . . . . . . . . . +30V ELECTRICAL CHARACTERISTICS: (Note 1) IOUT = 10mA, TA = 25oC, unless otherwise specified. PARAMETER MIN Reference Voltage Min. Load Current 1.238 1.225 CLM2830 TYP 1.250 1.250 40 5 0.015 0.035 0.05 0.1 0.2 1.1 3.2 0.2 4.0 0.5 0.3 55 0.2 0.004 0.5 60 75 0.003 0.7/3.0 1 120 5 0.02 MAX 1.262 1.270 50 10 0.2 0.2 0.5 0.3 0.4 1.5 V V mA mA % % % % % V A A % A A %/W % dB %VO o UNITS CONDITIONS 10mA IOUT IFULLLOAD 1.5V (VIN - VOUT 25V (Over Temperature) (VIN - VOUT) = +25V, CLM2830A CLM2830 1.5V VIN - VOUT 15V ILOAD = 10mA 15V VIN - VOUT 30V 10mA IOUT IFULLLOAD (VIN - VOUT) = 3V IOUT = IFULLLOAD, VREF = 1% VIN - VOUT = 5V VIN - VOUT = 25V TA = 125oC, 1000 Hrs. Line Regulation Load Regulation Dropout Voltage Current Limit Long Term Stability Adjust Pin Current Adjust Pin Current Change Thermal Regulation Temperature Stability Ripple Rejection Ratio Output Noise, RMS Thermal Resistance Junction-to-Case 30ms pulse VIN - VOUT = 3V IOUT = 3A, COUT = 25F, CADJ = 25F, f = 120Hz 10Hz to 10kHz CLM2830 - TO-220 and TO-263 C/W The Bold specifications apply to the over full operating temperature range. Note 1: Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 2: A 10F output capacitor is required on CLM2830. Note 3: Value shown for control circuitry (power transistor). CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CLM2830 CORPORATION TYPICAL PERFORMANCE CHARACTERISTICS 0.10 OUTPUT VOLTAGE DEVIATION (%) 0.05 0 -0.05 -0.10 -0.15 LOAD REGULATION I = 3A SHORT CIRCUIT CURRENT (A) 6 5 SHORT CIRCUIT CURRENT 25C 4 150C 3 -55C 2 1 0 IFULL LOAD -0.20 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) 1E-42 0 5 10 15 20 25 30 35 INPUT/OUTPUT DIFFERENTIAL (V) 1E-43 100 ADJUSTMENT PIN CURRENT (A) 90 80 70 60 50 40 30 20 10 ADJUSTMENT PIN CURRENT MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) 2 DROPOUT VOLTAGE INDICATES GUARANTEED TEST POINT -55C TJ 150C 0C TJ 125C 1 TJ = -55C TJ = 25C TJ = 150C 0 -50 -25 0 0 1 2 3 OUTPUT CURRENT (A) 4 1E-45 0 25 50 75 100 125 150 TEMPERATURE (C) 1E-44 MINIMUM OPERATING CURRENT (mA) 1.270 REFERENCE VOLTAGE (V) TEMPERATURE STABILITY 10 9 8 7 6 5 4 3 2 1 0 0 MINIMUM OPERATING CURRENT 1.260 TJ = 150C TJ = 25C 1.250 1.240 TJ = -55C 5 10 15 20 25 30 35 INPUT/OUTPUT DIFFERENTIAL (V) 1E-47 1.230 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) 1E-46 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 CLM2830 CORPORATION TYPICAL APPLICATIONS VIN C1 IN CLM2830 OUT R1 VIN C1 IN CLM2830 OUT R1 C2 VOUT ADJ ADJ LOAD VOUT = VREF (1 + R1 /R 2 ) + IADJ R 2 R2 3A CURRENT OUTPUT REGULATOR 1E-48 TYPICAL ADJUSTABLE REGULATOR 1E-49 INTEL486TM VIN +5V C1 IN CLM2830 3.45V OUT R1 C2 VCC ADJ R2 INTEL468 AND PENTIUM IS A TRADE MARK OF INTEL CORP. POWERING INTEL PENTIUM WITH CLM2830 1E-50 CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025 |
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