lm8801tmx National Semiconductor Corporation, lm8801tmx Datasheet
lm8801tmx
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lm8801tmx Summary of contents
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... The LM8801 is available in a 6-bump micro SMD package. Only three compact external surface-mount components, an inductor and two capacitors, are required. Typical Application Circuit © 2009 National Semiconductor Corporation LM8801 Features ■ Over 90% efficiency at 6 MHz Operation ■ ...
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... GND Ordering Information (6-Bump micro SMD) Order Number 6–bump Micro SMD LM8801TME-1.82* LM8801TMX–1.82* * Samples available θ JA 85°C/W (Note 6) www.national.com FIGURE 1. 6-Bump micro SMD Package Description Auto mode and forced PWM model selection. Forced PWM = HIGH; Auto = LOW. ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V Pin to GND IN EN, MODE pin to GND FB, SW pin (V Junction Temperature (T ) J-MAX ...
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Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and ...
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Block Diagram FIGURE 2. Simplified Functional Diagram 5 30082231 www.national.com ...
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Typical Performance Characteristics 1.82V 3.6V 25° 2.2 µF, 0402 (JMK105BJ225MV-F 0.5 µH, 2012 (MIPSZ2012D0R5), unless otherwise noted. Efficiency vs. Output Current (Auto Mode) Efficiency vs. Output Current (PWM Mode) Output ...
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Typical Switching Waveform (PWM Mode 300 mA) OUT Load Transient Response ↔ (0 150 mA) 30082235 Load Transient Response ↔ (150 400 mA) 30082237 Typical Switching Waveform (PFM Mode I 30082210 Load Transient Response ↔ (50 350 mA) ...
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Line Transient Response ↔ (3 Startup in PWM Mode (I www.national.com , 250 mA) 30082239 = 300 mA) OUT 30082241 8 Startup in PFM Mode ( mA) OUT 30082240 ...
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Operation Description DEVICE INFORMATION The LM8801, a high-efficiency, step-down DC-DC switching buck converter, delivers a constant voltage from either a sin- gle Li-Ion or three cell NiMH/NiCd battery to portable devices such as cell phones and PDAs. Using a voltage ...
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INTERNAL SYNCHRONOUS RECTIFICATION While in PWM mode, the LM8801 uses an internal NFET as a synchronous rectifier to reduce rectifier forward voltage drop and associated power loss. Synchronous rectification provides a significant improvement in efficiency whenever the output voltage is ...
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Application Information INDUCTOR SELECTION There are two main considerations when choosing an induc- tor; the inductor should not saturate, and the inductor current ripple is small enough to achieve the desired output voltage ripple. Different manufacturers follow different saturation cur- ...
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Model GRM155R60J225ME15 (C JMK105BJ225MV-F (C CL05A475MQ5NRNC (C IN MICRO SMD PACKAGE ASSEMBLY AND USE Use of the micro SMD package requires specialized board layout, precision mounting and careful re-flow techniques, as detailed in National Semiconductor Application Note 1112. Refer to ...
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Use wide traces between the power components and for power connections to the DC-DC converter circuit. This reduces voltage errors caused by resistive losses across the traces. 6. Route noise sensitive traces such as the voltage feedback path away ...
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Physical Dimensions * Pin A1 is established by lower left corner with respect to text orientation www.national.com inches (millimeters) unless otherwise noted 6–bump (Large) micro SMD, 0.4 mm pitch NS Package Number TMD06LCA X1 = 1.065 mm ± 0.030 mm ...
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... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...