LM3370TL-3006/NOPB National Semiconductor, LM3370TL-3006/NOPB Datasheet
LM3370TL-3006/NOPB
Specifications of LM3370TL-3006/NOPB
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LM3370TL-3006/NOPB Summary of contents
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... Default fixed voltages for the 2 output voltages combination can be customized to fit system requirements by contacting National Semiconductor Corporation. Typical Performance Curve Efficiency vs. Output Current, V © 2008 National Semiconductor Corporation Features ■ compatible interface — V OUT1 — ...
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Typical Application Functional Block Diagram www.national.com FIGURE 1. Typical Application Circuit FIGURE 2. Functional Diagram 2 20167301 20167302 ...
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Package Marking Information 16-Lead LLP Package FIGURE 3. Top Marking Pin Descriptions (LLP) Pin # Name 1 V IN2 2 SW2 3 PGND2 SGND 6 PGND1 7 SW1 8 V IN1 9 FB1 10 SDA 11 ...
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... Buck 1 Enable Buck 2 Switch Pin Power supply voltage input to PFET and NFET switches for Buck 2 Signal GND Analog feedback for Buck 2 4 micro SMD Marking Top View XY = Date Code TT = Die Run Traceability S = Switcher Family PSB = LM3370TL-3013 Description IN1 20167379 & IN2 ...
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... LM3370TLX-3006 NOPB LM3370TL-3806 NOPB LM3370TLX-3806 NOPB LM3370TL-3206 NOPB LM3370TLX-3206 NOPB LM3370TL-3022 NOPB LM3370TLX-3022 NOPB Note the LM3370TL-3607 has the following default output voltages where V Output voltage is controlled via I Mode can be controlled via compatible by either forcing device in Auto mode or forced PWM mode ...
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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 VDD to PGND & IN1 IN2 SGND PGND to SGND SDA, SCL, EN, EN2, nPOR1, nPOR2, SW1, SW2, FB1 & FB2 (GND - 0. Maximum Continuous Power ...
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... J Note 4: For detailed soldering specifications and information, please refer to National Semiconductor Application Note 1187: Leadless Leadframe Package (LLP) (AN-1187). Note 5: The Human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. (MIL-STD-883 3015.7) The machine model is a 200 pF capacitor discharged directly into each pin ...
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Typical Performance Characteristics V = 2.5V 2,2 µH (NR3015T2R2M), C OUT2 IQ_PFM (Non Switching) Both Channels IQ_PWM (Switching) Both Channels R (PFET) vs. Temperature DS_ON V = 3.6V IN www.national.com LM3370SD/TL, Circuit of Figure 4.7 ...
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R (LLP) vs. V DS_ON IN 20167348 Switching Frequency vs 20167360 Efficiency vs. Output Current Forced PWM Mode 1.2V OUT1 20167362 Current Limit vs. V Output Voltage vs. Output Current V = 3.6V (Forced PWM) IN ...
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Efficiency vs. Output Current Auto Mode, V OUT1 Efficiency vs. Output Current Auto Mode, V OUT2 Typical Operation Waveform V = 3.6V 1.8V & OUT1 Load = 400 mA www.national.com = 1.5V 20167380 = 3.3V 20167367 ...
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Typical Operation Waveform V = 3.6V 1.5V 2.5V, IN OUT1 OUT2 Load = 600 mA Each Start-up at PWM for BUCK2 ( V = 3.6V 2.5V, Load = 200 OUT Line ...
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Load Transient in PFM MODE ( V = 1.5V ) OUT1 Load Transient in PFM MODE ( V Load Transient in PWM MODE ( V = 3.6V OUT1 www.national.com 20167333 = 1.8V ) OUT1 20167335 = 1.5V ) ...
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Spread Spectrum Enabling ( V Signal at 2 MHz) OUT 20167375 V Stepping OUT ( From 3.3V to 1.8V ) 20167372 V Stepping OUT ( From 1. 20167371 www.national.com ...
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Operation Description DEVICE INFORMATION The LM3370, a dual high efficiency step down DC-DC con- verter, delivers regulated voltages from input rails between 2.7V to 5.5V. Using voltage mode architecture with syn- chronous rectification, the LM3370 has the ability to deliver ...
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FORCED PWM MODE The LM3370 auto mode can be bypassed by forcing the de- vice to operate in PWM mode, this can be implemented through the compatible interface, see Table 1. SOFT-START The LM3370 has a soft ...
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Compatible Interface Electrical Specifications Unless otherwise noted 2.7V to 5.5V. Typical values and limits appearing in normal type apply for T BATT appearing in boldface type apply over the entire junction temperature range for operation, ...
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TRANSFERRING DATA Every byte put on the SDA line must be eight bits long, with the most significant bit (MSB) being transferred first. The number of bytes that can be transmitted per transfer is unre- stricted. Each byte of data ...
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Device Register Information Register Information Register Name Location Control 00 Buck 1 01 Buck CHIP ADDRESS INFORMATION REGISTER 00 www.national.com Type R/W Control signal for Buck 1 and Buck 2 R/W Output setting & Mode ...
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REGISTER 01 REGISTER 02 19 20167312 20167313 www.national.com ...
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TABLE 1. Output Selection Table via I Data Code 00000 00001 00010 00011 00100 00101 00110 00111 01000 01001 01010 01011 01100 01101 01110 01111 10000 10001 10010 10011 10100 10101 10110 10111 11000 11001 * Can be trimmed at ...
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Application Information SETTING OUTPUT VOLTAGE VIA Compatible The outputs of the LM3370 can be programmed through Buck 1 & Buck 2 registers via Buck 1 output voltage can be dynamically adjusted between 1V to ...
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The output filter capacitor smoothes out current flow from the inductor to the load, helps maintain a ...
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... Then each trace should neck up or down to its optimal width. The important criteria is symmetry. This ensures the solder bumps on the LM3370TL re-flow evenly and that the device solders level to the board. In particular, special atten- tion must be paid to the pads for bumps A2/ ...
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... Physical Dimensions NOTES: UNLESS OTHERWISE SPECIFIED 1. For solder thickness and composition, see “Solder Information” in the packaging section of the National Semiconductor Web Page (www.national.com) 2. Maximum allowable metal burn on lead tips at the package edges is 76 microns. No JEDEC registration as of December 2004. 3. www.national.com ...
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... NOTE: UNLESS OTHERWISE SPECIFIED 1. EPOXY COATING 2. FOR SOLDER BUMP COMPOSITION, SEE “SOLDER INFORMATION” IN THE PACKAGE SECTION OF THE NATIONAL SEMICONDUCTOR WEB PAGE (www.national.com) 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH PACKAGE LENGTH AND X3 IS PACK- AGE HEIGHT ...
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