LM3352-3.0EVAL National Semiconductor, LM3352-3.0EVAL Datasheet
LM3352-3.0EVAL
Specifications of LM3352-3.0EVAL
Related parts for LM3352-3.0EVAL
LM3352-3.0EVAL Summary of contents
Page 1
... The LM3352 is available in a 16-pin TSSOP package. This package has a maximum height of only 1.1 mm. The high efficiency of the LM3352, low operating and shut- down currents, small package size, and the small size of the overall solution make this device ideal for battery powered, portable, and hand-held applications ...
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... Pin Description Pin Number *All GND pins of the LM3352 must be connected to the same ground. www.national.com 10103702 Top View TSSOP-16 Pin Package See NS Package Number MTC16 Package Type NSC Package Drawing MTC16 MTC16 MTC16 MTC16 MTC16 MTC16 Name Function GND Ground* C3− ...
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... LOAD 200 mA < < 4.9V V 5.5V; IN < < LOAD 175 mA Efficiency LOAD I = 150 mA, V LOAD = 4.0V Output Voltage LOAD Ripple µF OUT (Peak-to-Peak) tantalum LM3352-3.0 Output Voltage ( 3.5V LOAD ) 100 mA OUT < < 2.5V V 5.5V; IN < < LOAD 100 mA < < 3.8V V 5.5V; IN < < LOAD 200 mA ...
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... I LOAD 200 mA Efficiency LOAD I = 150 mA, V LOAD = 4.0V Output Voltage LOAD Ripple µF OUT (Peak-to-Peak) tantalum LM3352-ALL OUTPUT VOLTAGE VERSIONS Operating Quiescent Measured at Pin Current (Note 4) LOAD Shutdown Quiescent SD Pin at 0V (Note Current 5) Switching Frequency < < SD Input Threshold 2.5V V 5.5V IN Low < ...
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Typical Performance Characteristics Unless otherwise specified T = 25˚ vs. V OUT IN V vs. V OUT IN V vs. V OUT IN 10103704 10103706 10103708 5 V vs. V OUT IN 10103705 V vs. V OUT IN ...
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Typical Performance Characteristics V vs. V OUT IN V vs. V OUT IN Efficiency vs. V www.national.com Unless otherwise specified T 10103710 10103712 IN 10103720 6 = 25˚C. (Continued vs. V OUT IN 10103711 Load Transient Response 10103714 ...
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Typical Performance Characteristics Efficiency vs Operating Quiescent Current vs Ripple vs. C OUT OUT Unless otherwise specified T Switching Frequency vs. V 10103722 10103724 10103731 7 = 25˚C. (Continued 10103723 V Ripple vs. ...
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... A 0.33 µF ceramic capacitor is suggested for C1, C2 and C3. To ensure proper operation over temperature variations, an X7R dielectric material is recommended. Filter Capacitor Selection a) CAPACITOR TECHNOLOGIES The three major technologies of capacitors that can be used as filter capacitors for LM3352 are: i) tantalum, ii) ceramic through the comparator and iii) polymer electrolytic technologies Tantalum OUT Tantalum capacitors are widely used in switching regulators ...
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... A 1 µF, XR7 ceramic capacitor should be connected to pin C . This capacitor provides the filtering needed for the FIL internal supply rail of the LM3352. Of the different capacitor technologies, a sample of vendors that have been verified as suitable for use with the LM3352 are shown in Table 2. ripple. OUT TABLE 2. Capacitor Vendor Information Tel ...
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... OUT Electrical Characteristics for guaranteed conditions. Maximum Load Under Start-Up Due to the LM3352’s unique start-up sequence not able to start up under all load conditions. Starting with less will allow the part to start correctly under any tempera- ture or input voltage conditions. After the output is in regu- lation, any load up to the maximum as specified in the Electrical Characteristics may be applied ...
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... Layout Considerations Due to the 1 MHz typical switching frequency of the LM3352, careful board layout is a must important to place the capacitors as close to the IC as possible and to keep the FIGURE 4. Typical Layout, Top View (magnification 2.8X) traces between the capacitors and the IC short and direct. ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...