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XR76203ELTR-F Datasheet(PDF) 2 Page - Exar Corporation |
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XR76203ELTR-F Datasheet(HTML) 2 Page - Exar Corporation |
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2 / 20 page  © 2015 Exar Corporation XR76203/5/8 2 / 20 exar.com/XR76203/5/8 Rev 1A Absolute Maximum Ratings Stresses beyond the limits listed below may cause perma- nent damage to the device. Exposure to any Absolute Max- imum Rating condition for extended periods may affect device reliability and lifetime. PVIN, VIN...................................................................-0.3V to 43V VCC...........................................................................-0.3V to 6.0V BST..........................................................................-0.3V to 48V1 BST-SW.......................................................................-0.3V to 6V SW, ILIM..................................................................-1V to 43V1, 2 ALL other pins.................................................-0.3V to VCC+0.3V Storage Temperature...........................................-65°C to +150°C Junction Temperature..........................................................150°C Power Dissipation...............................................Internally Limited Lead Temperature (Soldering, 10 sec)................................300°C ESD Rating (HBM - Human Body Model)...............................2kV Operating Conditions PVIN...............................................................................5V to 40V VIN.................................................................................5V to 40V SW, ILIM.....................................................................-1V to 40V1 PGOOD, VCC, TON, SS, EN, FB...............................-0.3V to 5.5V Switching Frequency......................................100kHz to 800kHz3 Junction Temperature Range..............................-40°C to +125°C XR76203 JEDEC51 Package Thermal Resistance, JA...............28°C/W XR76205 JEDEC51 Package Thermal Resistance, JA...............26°C/W XR76208 JEDEC51 Package Thermal Resistance, JA...............25°C/W XR76203 Package Power Dissipation at 25°C......................3.6W XR76205 Package Power Dissipation at 25°C......................3.8W XR76208 Package Power Dissipation at 25°C......................4.0W Note 1: No external voltage applied. Note 2: SW pin’s minimum DC range is -1V, transient is -5V for less than 50ns. Note 3: Recommended frequency Electrical Characteristics Unless otherwise noted: TJ= 25°C, VIN=24V, BST=VCC, SW=AGND=PGND=0V, CVCC=4.7uF. Limits applying over the full operating temperature range are denoted by a “•” Symbol Parameter Conditions Min Typ Max Units Power Supply Characteristics VIN Input Voltage Range VCC regulating 5.5 40 V IVIN VIN Input Supply Current Not switching, VIN = 24V, VFB = 0.7V 0.7 2 mA IVIN VIN Input Supply Current (XR76203) f=300kHz, RON=215k, VFB=0.58V 12 mA IVIN VIN Input Supply Current (XR76205) f=300kHz, RON=215k, VFB=0.58V 15 mA IVIN VIN Input Supply Current (XR76208) f=300kHz, RON=215k, VFB=0.58V 19 mA IOFF Shutdown Current Enable = 0V, VIN = 12V 1 μA Enable and Under-Voltage Lock-Out UVLO VIH_EN_1 EN Pin Rising Threshold 1.8 1.9 2.0 V VEN_H_1 EN Pin Hysteresis 70 mV VIH_EN_2 EN Pin Rising Threshold for DCM/ CCM operation 2.8 3.0 3.1 V VEN_H_2 EN Pin Hysteresis 100 mV |
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