ilc7083 Fairchild Semiconductor, ilc7083 Datasheet
ilc7083
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ilc7083 Summary of contents
Page 1
... The ILC7083/ILC7084 is designed to make use of low cost ceramic capacitors while outperforming other devices that require tantalum capacitors. As opposed to ILC7084, the ILC7083 has a built in output capacitor discharge circuit active in shutdown mode. This feature is necessary in applications where the output voltage must decrease quickly to zero volt in shutdown mode. ...
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... Pin Assignments Fixed Voltage Option GND NOISE ON/OFF N ILC7083- OUT OUT SOIC-8 Pin Description ILC7083-xx Pin Number SOIC-8 SOT-23-5 Pin Name 3 and GND 2 3 ON/OFF NOISE 5 and OUT 7 – N/C Pin Description ILC7083-ADJ ...
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... FEEDBACK Symbol ON/OFF I Short circuit protected OUT V OUT P 250 (Internally Limited J(max) T STG θ JA Min OUT DO –40 ILC7083/ILC7084 V OUT Ratings Units -0.3 to +13 -40 to +150 °C -40 to +125 °C 333 °C/W Typ. Max. Units ...
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... ILC7083/ILC7084 Electrical Characteristics ILC7083/ILC7084 Unless otherwise specified, all limits are at T Boldface type denotes specifications which apply over the specified operating temperature range. Parameter Symbol Input Voltage Range V IN Output Voltage V OUT Feedback Voltage V ADJ (ADJ version) Line Regulation ∆ ...
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... ZERO UNITY GAIN FREQUENCY Figure 1. ILC7083/ILC7084 RF LDO Frequency Response A block diagram of the regulator circuit used in the ILC7083 is shown in Figure 2, which shows the input-to-output isola- tion and the cascaded sequence of amplifiers that implement the pole-zero scheme outlined above. The ILC7083/ILC7084 is designed in a CMOS process with some minor additions, which allow the circuit to be used at input voltages up to 13V ...
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... The ILC7083/ILC7084 output can be turned off by applying 0.6V or less to the device’s ON/OFF pin (pin 3). In shutdown mode, the ILC7083/ILC7084 draws less than 1µA quiescent current. In shutdown mode the output of ILC7083 is coupled to a low impedance circuit which discharges the output capacitor. The output of the ILC7083/ILC7084 is enabled by applying 1 ...
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... ON Noise Bypass Capacitor OFF In low noise applications, the self noise of the ILC7083 can be decreased further by connecting a capacitor from the noise bypass pin (pin 4) to ground (pin 2). The noise bypass pin is a high impedance node as such care should be taken in printed circuit board layout to avoid noise pick-up from external sources ...
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... V . REF With reference to the block diagram in Figure 4, V back to the error amplifier and is used as the supply voltage for the internal components of the ILC7083/ILC7084. So any change in V will cause the error amplifier to try to OUT compensate to maintain V at the set level and noise on ...
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... OUT OUT OUT +IC +IC NOISE NOISE +IGND Figure 7. Effects of Poor Circuit Layout C NOISE 5 4 ILC7083 SOT-23 ON/OFF DC/DC Converter C IN GND Ground Plane Ground Plane Fairchild Semiconductor - Eval. Board ILC7083/ILC7084 OUT OUT OUT GND5 I LOAD V OUT C OUT ESR<0.5 Ground Plane 9 ...
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... GROUND” and not directly to the “GROUND PLANE” multilayer boards use component side copper for grounding around the ILC7083 and connect back to a “GROUND PLANE” using vias using a DC-DC converter in your design, use a star grounding system with separate traces for the power ground and the control signals ...
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... Typical Performance Characteristics ILC7083/ILC7084 Unless otherwise specified: = 25° Output Voltage vs Temperature 3.015 V = 3.0V OUT C = 1µF (Ceramic) OUT 3.01 3.005 3 2.995 2.99 2.985 - Temperature (°C) Dropout Voltage vs Temperature 250 V = 3.0V OUT 200 150 100 50 I OUT 0 –40 25 Temperature (°C) Ground Current vs Input Voltage ...
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... ILC7083/ILC7084 Typical Performance Characteristics ILC7083/ILC7084 Unless otherwise specified: = 25° Load Transient Response 3. 3.0V OUT 3. µF || 0.47 µF (Ceramic) OUT 3.05 3.00 2.95 100 1 100µs/div On/Off Transient Response 2.8V OUT I = 10mA 10 Without C OUT NOISE C = 1µF OUT 100µS/div ...
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... Typical Performance Characteristics ILC7083/ILC7084 Unless otherwise specified: = 25° Spectral Noise Density 2.8V OUT I = 50mA OUT C = 0.01µF NOISE 1µF (Ceramic) OUT 0 2.2µF or 4.7µF (Ceramic) OUT 0. 10µF (Ceramic) OUT 0.001 10 100 1K 10K Frequency (Hz) Output Noise Voltage vs 1.2nF ...
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... ILC7083/ILC7084 Mechanical Dimensions 8-Lead Plastic Surface Mount (SOIC) Inches Millimeters Symbol Min. Max. Min. A .053 .069 1.35 A1 .004 .010 0.10 B .013 .020 0.33 C .0075 .010 0.20 D .189 .197 4.80 E .150 .158 3.81 e .050 BSC 1.27 BSC H .228 .244 5.79 h .010 .020 0.25 L .016 .050 0. 0° 8° 0° α ...
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... BSC 1.90 BSC H .087 .126 2.20 .004 .024 .10 L 0° 10° 0° α REV. 1.0.9 1/28/03 Notes: Notes 1. Package outline exclusive of mold flash & metal burr. 2. Package outline exclusive of solder plating. 1.45 3. EIAJ Ref Number SC-74A. .15 .50 .25 3.10 1.80 3.20 .60 10° ILC7083/ILC7084 15 ...
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... Part Number Output Voltage (V) ILC7083AIM525X ILC7083AIM527X ILC7083AIM5285X ILC7083AIM530X ILC7083AIM533X ILC7083AIM536X ILC7083AIM550X ILC7083AIM5ADJX ILC7083AIK30X ILC7083AIKADJ ILC7084AIM5ADJX DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...