SS6084

SS6084 SSC | Alldatasheet

Document overview

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Technical content

www.SiliconStandard.com 1 of 7 SS6084 Rev.2.02 4/06/2004

FEATURES

Dropout voltage 1.3V at 5A o utput current. Fast transient response. Extremely tight line and load regulation. Current limiting and thermal protection. Adjustable o utput voltage or fixed at 1.5V, 1.8V, 2.5V, 3.3V. Standard 3-pin power pack ages.

APPLICATIONS

Mothe rboard I/O Power Supplies. Microprocessor Power Supplies. High -Current Regulato rs. Post-regulator for Switching Supplies .

DESCRIPTION

The SS6084 is a low -dropout three -terminal linear regulator with 5A output current capability. The output volt age is adjustable with a resistor divider or guaranteed to be a maximum of 1.4V at the maximum output current. This low dropout voltage and fast transient response make the SS6084 ideal for low - volta ge microprocessor applications. Current and thermal limiting provide protection against overload conditions that would create excessive junction temperatures. TYPICAL APPLICATION CIRCUIT 10µF VOUT 3.3V VIN + + V REF RF2 20 5Ω ADJ SS6084 10µF 2 3

1 RF1

125Ω VREF =VOUT -VADJ=1.25V (typ. ) VOUT=V REF x (1+RF2/RF1)+ I ADJ x RF2 IADJ=55 µA (typ.) (1) C1 is needed if the device is physically far from the filter capacitors. (2) C2 is required for stability. Adjustable Voltage Regulator 10µF VOUT 3.3V VIN + + GND 10µF S S6084-33 2 Fixed Voltage Regulator 5A Low-dropout Positive Linear Regulator

www.SiliconStandard.com 2 of 7 SS6084 Rev.2.02 4/06/2004 ORDERING INFORMATION PIN CONFIGURATION SS608 4- XXCX XX Example: SS6084 -15CETR à 1.5V fixed output in TO -252 shipped in tape and reel 2 3 1 TO-252 TOP VIEW 1: ADJ (GND) 2: VOUT (TAB) 3: VIN 2 3 1 1 2 3 TO-263 TOP VIEW 1: ADJ (GND) 2: VOUT (TAB) 3: VIN TO-220 FRONT VIEW 1: ADJ (GND) 2: VOUT (TAB) 3: VIN Packing type TB: tubes TR: tape and reel Package type E: TO- 252 M: TO-263 T: TO -220 Output voltage Default : adjustable 15: 1.5V 18: 1.8V 25: 2.5V 33: 3.3V ABSOLUTE MAXIMUM RATINGS VIN pin to ADJ/GND pin Operating Junction Temperature Range 0°C~ 125°C Storage Temperature Range - 65°C ~ 150°C Thermal Resistance Junction to Case TO-252 12.5°C/W TO-263, TO-220 3°C /W Thermal Resistance Junction to Ambient TO-252 100°C/W (Assume no ambient airflow, no heatsink) TO-263 60°C /W TO-220 50° C /W Lead Temperature (Soldering) 10 sec. 260°C

www.SiliconStandard.com 3 of 7 SS6084 Rev.2.02 4/06/2004 TEST CIRCUIT Refer to TYPICAL APPLICATION CIRCUIT.

ELECTRICAL CHARACTERISTICS

IN=5V, TJ=25° C, IO=10mA, unless otherwise specified) PARAMETER TEST CONDITIONS MIN. TYP. MAX. UNIT Reference Voltage SS6084 (ADJ) TJ=25° C 1.238 1.25 1.262 V Output Voltage SS6084 -15, VIN=5V SS6084 -18, VIN=5V SS6084 -25, VIN=5V SS6084 -33, VIN=5V 1.48 1.78 2.47 3.26 1.50 1.80 2.50 3.30 1.52 1.82 2.53 3.34 V ADJ : 2.65V ≤ V IN ≤7V VOUT=1.25V Line Regulation Fix : V OUT+1.4V ≤ V IN ≤ 7V TJ=25° C 0.015 0.2 % Load Regulation 10mA < IO < 5A TJ=25° C 0.6 % Dropout Voltage ΔV OUT, ΔV REF =1% 10mA ≤ I O ≤ 5 A 0°C ≤ TJ ≤ 125 °C 1.3 1.4 V Current Limit 0°C ≤ T J ≤125 ° C 5 6 A Adjusted Pin Current 2.65V ≤ V IN ≤ 7 V 55 120 µA Adjusted Pin Current Change (ΔI ADJ) 2. 65V ≤ V IN ≤ 7 V 0°C ≤ TJ≤ 125 °C 0.2 5 µA Temperature Stability IO=0.5A Minimum Load Current 0°C ≤ TJ ≤125 ° C 5 10 mA RMS Output Noise (% of V OUT) 10Hz ≤ f ≤ 10KHz 0.003 % Ripple Rejection Ratio 120Hz input ripple COUT=25µF (VIN -VOUT )=3V 60 72 dB

www.SiliconStandard.com 4 of 7 SS6084 Rev.2.02 4/06/2004 BLOCK DIAGRAM VIN 55 µA ADJ V REF 1.25V GM Thermal Limit Current Amp. VOUT GND For fixed voltage device Current Limit PIN DESCRIPTIONS ADJ PIN - Providing V REF=1.25V (typ.) for adjustable V OUT. VREF =VOUT-VADJ and IADJ=55µA (typ.) GND PIN- Power ground. VOUT PIN - Adjustable output voltage. VIN PIN - Power Input. TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1 Load Transient Response Time (µS) Output Voltage (V, AC) Load Current 0 20 40 60 80 100 0.1A 2.5A -0.4 -0.2 0.2 0.4 VIN=5.0V CIN=1µF(Tantalum) COUT =10µF(Tantalum) VOUT=3.3V Fig. 2 Line Transient Response Time ( µS) Output Voltage (mV, AC) Input Voltage (V) 0 40 80 120 160 200 6.0 7.0 -100 -50 CIN=1µF (Tantalum) COUT =10µF (Tantalum) VOUT=3.3V

www.SiliconStandard.com 5 of 7 SS6084 Rev.2.02 4/06/2004 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Fig. 3 Dropout Voltage (V OUT=3.3V) Output Current (A) Minimum differential Voltage (V) 0 1 2 3 4 5 1.05 1.10 1.15 1.20 1.25 1.30 1.35 Fig. 4 Minimum Operating Current Differential Voltage (V) Minimum Operating Current (mA) 0 1 2 3 4 5 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 1 2 3 4 5 6 7 8 9 Fig. 5 Minimum Operating Current Minimum Operating Current (mA) Differential Voltage (V) 1 2 3 4 5 6 7 0 Fig. 6 SS6084 (A DJ.) Short Circuit Current Short Circuit Current (A) VIN-VOUT (V) -80 -70 -60 -50 -40 -30 -20 Fig. 7 SS6084 (ADJ.) Ripple Rejection COUT=3.3µF Ripple Rejection Ratio (dB) Frequency (Hz) COUT=10 µF COUT=25µF

www.SiliconStandard.com 6 of 7 SS6084 Rev.2.02 4/06/2004 PHYSICAL DIMENSIONS l TO-220 (unit: mm) SYMBOL MIN MAX A 3.56 4.82 D 14.23 16.51 E 9.66 10.66 e 2.29 2.79 e1 0.50 1.15 e2 - 1.10 F 0.51 1.39 J1 2.04 2.92 L 12.70 14.73 E D e Φ 3.81±0.27 A F L l TO-252 (unit: mm) SYMBOL MIN MAX A 2.19 2.38 A1 1.02 1.27 b 0.64 0.88 b2 5.21 5.46 C1 0.46 0.58 D 5.33 5.59 E 6.35 6.73 e 2.28 (TYP.) H 9.40 10.42 E b2 A HD L b e L 0.51 -

Information furnished by Silicon Standard Corporation is believed to be accurate and reliable. However, Silicon Standard Corporation makes no guarantee or warranty, expre ss or implied, as to the reliability, accuracy, timeliness or completeness of such information and assumes no responsibility for its use, or for infringement of any patent or other intellectual property rights of third parties that may result from its use. Silicon Standard reserves the right to make changes as it deems necessary to any products described herein for any reason, including without limitation enhancement in reliability, functionality or design. No license is granted, whether expressly or by implication, in relation to the use of any products described herein or to the use of any information provided herein, under any patent or other intellectual property rights of Silicon Standard Corporation or any third parties. www.SiliconStandard.com 7 of 7 SS6084 Rev.2.02 4/06/2004 PHYSICAL DIMENSIONS (cont.) l TO-263 (unit: mm) SYMBOL MIN MAX A 4.06 4.83 b 0.50 1.00 b2 1.14 1.40 C - 0.7 c2 1.14 1.40 D 8.63 9.66 E 9.65 10.29 e 2.54 (TYP.) L 14.60 15.88 L1 2.28 2.80 E L A C e D b C2L2 L2 - 1.40