MC33762 ON Semiconductor, MC33762 Datasheet
MC33762
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MC33762 Summary of contents
Page 1
... MC33762 Dual Ultra Low−Noise Low Dropout Voltage Regulator with 1.0 V ON/OFF Control The MC33762 is a dual Low DropOut (LDO) regulator featuring excellent noise performances. Thanks to its innovative design, the circuit reaches an impressive 40 external bypass capacitor. Housed in a small 8 package, it represents the ideal designer’s choice when space and noise are at premium. ...
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... NW Suffix, Plastic Package Thermal Resistance Junction−to−Air Operating Ambient Temperature Maximum Junction Temperature (Note 1) Maximum Operating Junction Temperature (Note 2) Storage Temperature Range 1. Internally limited by shutdown. 2. Specifications are guaranteed below this value. MC33762 On/Off Thermal 2 Shutdown Band Gap Reference *Current Limit ...
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... Dropout Voltage (all versions) (Note out out out 3. Voltage slope should be greater than 2.0 mV/ms MC33762 = − +85 C, max T = 125 C unless otherwise noted Pin # 2−4 2−4 2−4 − 150 mV OFF − − ...
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... mA 100 Hz to 1.0 MHz out out = 1.0 mF, I Output Rise Time (all versions) C out 10% of Rising ON Signal to 90% of Nominal V Thermal Shutdown Thermal Shutdown (all versions) MC33762 (continued) = − +85 C, max T = 125 C unless otherwise noted Pin # 5−7 5−7 5− mA, 5− ...
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... IC operation, bias etc. When the LDO becomes loaded, this term is called the Ground current actually the difference between the input current (measured through the LDO input pin) and the output current. MC33762 DEFINITIONS Line Regulation The change in output voltage for a change in input voltage. ...
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... OUTPUT CURRENT (mA) Figure 4. Dropout versus Output Current 180 160 140 120 100 −60 −40 MC33762 Characterization Curves Curves are Common to Both Regulators 185 − 180 175 170 165 80 100 −60 −40 Figure 3. Quiescent Current versus 2.805 ...
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... VRMS specifications output current is needed, the ground current is extracted from the data−sheet curves: 4 mA. For a half 2.8 V MC33762 (2.8 V) operating the maximum input voltage will then be 7.3 V. Typical Applications The following picture portrays the typical application of the MC33762. http://onsemi.com ...
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... Printed Circuit Board (PCB) layout. Connections shall be kept short and wide. Layout example MC33762 MC33762 Regulator On/Off 100 k 100 k Figure 7. A Typical Application Schematic as given in the MC33761 application hints can be used as a starting basis. http://onsemi.com ...
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... The MC33762 cures this problem by implementing a clever design where the LDO detects the presence of the overshoot and forces the system to go back to steady−state as soon as possible, ready for the next shot. Figure 10 and 11 show how it positively improves the response time and decreases the negative peak voltage ...
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... Thanks to the lack of bypass capacitor the MC33762 is able to supply its downstream circuitry as soon as the OFF to ON signal appears standard LDO, the charging time of the external bypass capacitor hampers the response time. A simple solution consists in suppressing this bypass element but, unfortunately, the noise rises to an MC33762 MC33762 Has a Fast Start− ...
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... TYPICAL TRANSIENT RESPONSES Figure 13. Output is Pulsed from 2 Figure 15. Load Transient Improvement Effect MC33762 Figure 14. Discharge Effects from Figure 16. Load Transient Improvement Effect http://onsemi.com 11 ...
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... Figure 17. MC33762 Typical Noise Density Performance 0 −10 −20 −30 − −50 −60 − −80 −90 −100 100 1,000 10,000 f, FREQUENCY (Hz) Figure 18. MC33762 Typical Ripple Rejection Performance MC33762 TYPICAL TRANSIENT RESPONSES 1.0 V RMS Noise, I ...
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... Surface mount board layout is a critical portion of the total design. The footprint for the semiconductor packages must be the correct size to ensure proper solder connection interface MC33762 between the board and the package. With the correct pad geometry, the packages will self−align when subjected to a solder reflow process ...
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... Part Number Voltage Output MC33762DM−2525R2 2.5 V & 2.5 V MC33762DM−2828R2 2.8 V & 2.8 V MC33762DM−3030R2 3.0 V & 3.0 V MC33762 ORDERING INFORMATION Marking Package 2525 Micro8 2828 Micro8 3030 Micro8 http://onsemi.com 14 Shipping 4000 Units / Tape & Reel 4000 Units / Tape & Reel 4000 Units / Tape & Reel ...
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... 0.08 (0.003) SEATING PLANE −T− 0.038 (0.0015 MC33762 Micro8 PLASTIC PACKAGE CASE 846A−02 ISSUE F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0 ...
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... N. American Technical Support: 800−282−9855 Toll Free USA/Canada MC33762 JAPAN: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 16 MC33762/D ...