ilc6383 Fairchild Semiconductor, ilc6383 Datasheet
ilc6383
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ilc6383 Summary of contents
Page 1
... IF band. Internal synchronous rectification and externally selectable PFM/PWM mode of operation allows the selection of the best efficiency at light or full load. The ILC6383 is capable of delivering 75mA at 3.3V output from a single cell input. The ILC6383-XX offers 3. fixed output voltage while the ILC6383-ADJ allows adjustable output voltage to 6V maximum. Output voltage accuracy is ± ...
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... POK MSOP MSOP (TOP VIEW) ILC6383CIR-ADJ Pin Description Inductor input . Inductor L connected between this pin and the battery Input Voltage . Connect directly to battery Low battery detect input and shutdown . Low battery detect threshold is set with this pin using a potential divider. If this pin is pulled to logic low then the device will shutdown ...
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... Load Regulation ∆ ∆ ∆ ∆ V OUT V OUT Efficiency η Electrical Characteristics ILC6383CIR-50 in PFM Mode Unless otherwise specified, all limits are at V BOLDFACE type indicates limit that apply over the full operating temperature range. (Note 2) Parameter Symbol Output Voltage V OUT(nom) ...
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... ILC6383 Electrical Characteristics ILC6383CIR-50 in PWM Mode Unless otherwise specified, all limits are at V BOLDFACE type indicates limit that apply over the full operating temperature range. (Note 2) Parameter Symbol Output Voltage V OUT Maximum Output I OUT Current Load Regulation ∆ ∆ ∆ ∆ V ...
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... OUT V < 0.4V LBI/SD OUT (short circuit) N-Channel MOSFET P-Channel MOSFET 1.175 1.150 Pins LB/SD, SEL and (Note 3) (Note 4) ). This feature eliminates false triggering due to HOLD(LBI) ILC6383 Min. Typ. Max. Units 0.9 V OUT(nominal) 1 +0. µA 400 mΩ 750 255 300 345 kHz 1 ...
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... Synchronous Rectification The ILC6383 also uses a technique called “synchronous rectification” which removes the need for the external diode used in other circuits. The diode is replaced with a second switch or in the case of the ILC6383, an FET as shown in Figure 4 below SW2 ...
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... Low Battery Detector The ILC6383's low battery detector is a based on a CMOS comparator. The negative input of the comparator is tied to an internal 1.25V (nominal) reference, V input is the LBI/SD pin. It uses a simple potential divider arrangement with two resistors to set the LBI threshold as shown in Figure 6 ...
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... When the ILC6383 is shut down, the synchronous rectifier disconnects the output from the input. This ensures that there is only leakage (I < 1µA typical) from the input to the out- IN put so that the battery is not drained when the ILC6383 is shut down LBI/SD ...
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... PRODUCT SPECIFICATION External Component Selection Inductors The ILC6383 is designed to work with a 15µH inductor in most applications. There are several vendors who supply standard surface mount inductors to this value. Suggested suppliers are shown in Table 1. Higher values of inductance will improve efficiency, but will reduce peak inductor current and consequently ripple and noise, but will also limit output current ...
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... ON 6 LBO OFF POK 5 SEL PWM PFM GND Manufacturer Fairchild Semiconductor muRata muRata Dale, Panasonic Dale, Panasonic Manufacturer Fairchild Semiconductor muRata muRata Dale, Panasonic PRODUCT SPECIFICATION U1 ILC6383ADJ OUT X C1 15µH 47µ GND 10K 6 3 LBO LBI ...
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... ILC6383 Typical Performance Characteristics ILC6383CIR-33 (V Unless otherwise specified 25° Efficiency (PWM Mode 0 1.5V IN 0.8 0.7 0 100 150 200 250 Load Current (mA) Load Regulation ( 3.42 3.4 3.38 3.36 3. 2.5V IN 3.32 3.3 3. 3.24 3.22 3.2 3. ...
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... ILC6383 Typical Performance Characteristics ILC6383CIR-50 (V Unless otherwise specified 25° Efficiency (PWM Mode) Load Regulation (PWM Mode 47µ 47µ 15µH. IN OUT PRODUCT SPECIFICATION = 5.0 V) OUT REV. 1.2.6 6/13/02 ...
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... PRODUCT SPECIFICATION Typical Performance Characteristics ILC6383CIR-50 (V Unless otherwise specified 25° REV. 1.2.6 6/13/02 = 47µ 47µ 15µH. IN OUT ILC6383 = 5.0V) (Continued) OUT 13 ...
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... ILC6383 Mechanical Dimensions 8-Lead MSOP 0.122 (3.1) 0.114 (2.9) Pin 1 identifier 0.006 (.15) 0.016 (.40) 0.004 (.05) 0.01 (.25) 14 0.122 (3.1) 0.244 (5.15) 0.114 (2.9) 0.228 (4.65) 0.025 (.65)BSC 0.009 (.23) 0.005 (.13) 0.043 (1.1) 0.031 (.80) 0.027 (.70) 0.016 (.40) PRODUCT SPECIFICATION (0-10)° REV. 1.2.6 6/13/02 ...
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... Part Number Output Voltage ILC6383CIR33X 3.3V ILC6383CIR50X 5.0V ILC6383CIRADJX Adjustable 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; ...