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SS23 数据表(PDF) 2 Page - Monolithic Power Systems |
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SS23 数据表(HTML) 2 Page - Monolithic Power Systems |
2 / 11 page MP1591 – 2A, 32V, 330KHz STEP-DOWN CONVERTER MP1591 Rev. 2.3 www.MonolithicPower.com 2 9/27/2006 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2006 MPS. All Rights Reserved. PACKAGE REFERENCE Part Number* Package Temperature MP1591DN SOIC8E –40 °C to +85°C MP1591DS SOIC8 –40 °C to +85°C * For Tape & Reel, add suffix –Z (eg. MP1591DN–Z) For RoHS Compliant Packaging, add suffix –LF (eg. MP1591DN–LF–Z) ABSOLUTE MAXIMUM RATINGS (1) IN Supply Voltage........................ –0.3V to +34V SW Voltage............................. –1V to VIN + 0.3V BS Voltage ....................VSW – 0.3V to VSW + 6V All Other Pins................................. –0.3V to +6V Junction Temperature...............................150 °C Lead Temperature ....................................260 °C Storage Temperature ..............–65°C to +150 °C Recommended Operating Conditions (2) Input Voltage ................................... 6.5V to 32V Operating Temperature .............–40 °C to +85°C Thermal Resistance (3) θJA θJC SOIC8 (w/ Exposed Pad) ....... 50 ...... 10... °C/W SOIC8..................................... 90 ...... 45... °C/W Notes: 1) Exceeding these ratings may damage the device. 2) The device is not guaranteed to function outside of its operating conditions. 3) Measured on approximately 1” square of 1 oz copper. ELECTRICAL CHARACTERISTICS VIN = 12V, TA = +25°C, unless otherwise noted. Parameter Symbol Condition Min Typ Max Units Shutdown Supply Current VEN = 0V 20 35 µA Supply Current VEN = 5V, VFB = 1.4V 1.0 1.2 mA Feedback Voltage 6.5V ≤ VIN ≤ 32V, VCOMP < 2V 1.202 1.230 1.258 V Error Amplifier Voltage Gain 400 V/V Error Amplifier Transconductance ∆IC = ±10µA 500 700 1100 µA/V High-Side Switch On Resistance (4) 120 mΩ Low-Side Switch On Resistance (4) 8.5 Ω High-Side Switch Leakage Current VEN = 0V, VSW = 0V 0 10 µA Current Limit (5) 2.5 3.6 4.9 A Current Sense to COMP Transconductance 3.5 A/V Oscillation Frequency 280 330 380 KHz Short Circuit Oscillation Frequency VFB = 0V 35 KHz Maximum Duty Cycle (4) VFB = 1.0V 90 % Minimum Duty Cycle (4) VFB = 1.5V 0 % EN Shutdown Threshold Voltage 0.8 1.2 1.6 V Enable Pull-Up Current VEN = 0V 1.8 µA EN UVLO Threshold VEN Rising 2.4 2.6 2.8 V EN UVLO Threshold Hysteresis 250 mV BS IN SW GND REF EN COMP FB 1 2 3 4 8 7 6 5 TOP VIEW EXPOSED PAD ON BACKSIDE (SOIC8N ONLY) CONNECT TO PIN 4 |
类似零件编号 - SS23 |
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类似说明 - SS23 |
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