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CL32B106KBJNNNE Datasheet(PDF) 3 Page - Texas Instruments |
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CL32B106KBJNNNE Datasheet(HTML) 3 Page - Texas Instruments |
3 / 40 page SW SW PGND PGND VIN VIN CBOOT VCC BIAS FB SYNC FPWM EN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AGND N/C EP RESET (17) 3 LM53602, LM53603 www.ti.com SNVSAR0 – NOVEMBER 2016 Product Folder Links: LM53602 LM53603 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated (1) Some text and images in this datasheet refer to fixed 3.3-V or 5-V output devices which are only available in the automotive grade version of this device as the LM53603-Q1 and LM53602-Q1. Refer to the automotive datasheet for more information on those output voltage options. 5 Device Comparison Table PART NUMBER(1) OUTPUT VOLTAGE MAXIMUM OUTPUT CURRENT PACKAGE QTY LM53603AMPWPR Adjustable 3 A 2000 LM53603AMPWPT Adjustable 3 A 250 LM53602AMPWPR Adjustable 2 A 2000 LM53602AMPWPT Adjustable 2 A 250 (1) O = Output, I = Input, G = Ground, P = Power 6 Pin Configuration and Functions PWP Package 16-Lead HTSSOP Top View Pin Functions PIN I/O(1) DESCRIPTION NO. NAME 1, 2 SW P Regulator switch node. Connect to power inductor. Connect pins 1 and 2 directly together at the PCB. 3 CBOOT P Bootstrap supply input for gate drivers. Connect a high-quality, 470-nF capacitor from this pin to SW. 4 VCC O Internal 3.15-V regulator output. Used as supply to internal control circuits. Do not connect to any external loads. Can be used as logic supply for control inputs. Connect a high-quality, 3.3-µF capacitor from this pin to GND. 5 BIAS P Input to internal voltage regulator. Connect to output voltage point. Do not ground. Connect a high- quality, 0.1-µF capacitor from this pin to GND. 6 SYNC I Synchronization input to regulator. Used to synchronize the regulator switching frequency to the system clock. When not used connect to GND; do not float. 7 FPWM I Mode control input to regulator. High = forced PWM (FPWM). Low = auto mode; automatic transition between PFM and PWM. Do not float. 8 RESET O Open-drain reset output. Connect to suitable voltage supply through a current limiting resistor. High = power OK. Low = fault. RESET goes low when EN = low. 9 FB I Feedback input to regulator. Connect to output voltage sense point for fixed 5-V and 3.3-V output. Connect to feedback divider tap point for ADJ option. Do not float or ground. 10 AGND G Analog ground for regulator and system. All electrical parameters are measured with respect to this pin. Connect to EP and PGND on PCB. 11 EN I Enable input to the regulator. High = ON. Low = OFF. Can be connected directly to VIN. Do not float. 12, 13 VIN P Input supply to the regulator. Connect a high-quality bypass capacitor(s) from this pin to PGND. Connect pins 12 and 13 directly together at the PCB. 14 N/C — This pin has no connection to the device. |
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