lm2612abpx National Semiconductor Corporation, lm2612abpx Datasheet
lm2612abpx
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lm2612abpx Summary of contents
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... Only three small external surface-mount components, an inductor and two ceramic capacitors are required. Typical Application Circuit © 2003 National Semiconductor Corporation Key Specifications n Operates from a single LiION cell (2.8V to 5.5V) n Pin programmable output voltage (1.05V, 1.3V, 1.5V and 1 ...
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... Connection Diagrams micro SMD package TOP VIEW Ordering Information Order Number Package Type 10-Pin micro SMD LM2612ABP LM2612BBP 10-bump Wafer Level Chip Scale (micro SMD) LM2612ABPX LM2612BBPX Pin Description Pin Number(*) Pin Name VID1 C1 VID0 D1 SYNC/MODE PGND PVIN ...
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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. PVIN, VDD, to SGND PGND to SGND EN, SYNC/MODE, VID0, VID1 to SGND FB, SW Electrical Characteristics Specifications with ...
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Electrical Characteristics Specifications with standard typeface are for T perature Range ( −25˚C to +85˚C). Unless otherwise specified, PVIN = VDD = EN = SYNC = 3.6V, VID0 = VID1 = A J 0V. Symbol Parameter f ...
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Typical Operating Characteristics LM2612ABP, Circuit of Figure µH, unless otherwise noted. 1 Quiescent Supply Current vs Temperature Shutdown Quiescent Current vs Temperature Output Voltage vs Temperature (PFM Mode) = 3.6V 25˚C, A ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) Output Voltage vs Supply Voltage (V = 1.8V, PFM Mode) OUT Output Voltage vs Supply Voltage (V = 1.5V, PFM Mode) OUT Output Voltage vs Supply Voltage (V = 1.3V, PFM Mode) ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) Output Voltage vs Supply Voltage (V = 1.05V, PFM Mode) OUT Output Voltage vs Output Current (V = 1.8V, PFM Mode) OUT Output Voltage vs Output Current (V = 1.5V, PFM Modee) ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) Output Voltage vs Output Current (V = 1.3V, PFM Mode) OUT Output Voltage vs Output Current (V = 1.05V, PFM Mode, With Diode) OUT Efficiency vs Output Current (V = 1.8V, PFM ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) Efficiency vs Output Current (V = 1.5V, PFM Mode, With Diode) OUT Efficiency vs Output Current (V = 1.3V, PFM Mode) OUT Efficiency vs Output Current (V = 1.05V, PFM Mode, With ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) Efficiency vs Output Current (V = 1.8V, PFM Mode, No Diode) OUT Load Transient Response (PWM Mode) A: INDUCTOR CURRENT, 500mA/div B: SW PIN, 5V/div 50mV/div, AC COUPLED OUT ...
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Typical Operating Characteristics µH, unless otherwise noted. (Continued) PWM to PFM Response A: INDUCTOR CURRENT, 500mA/div B: SW PIN, 2V/div 50mV/div, AC COUPLED OUT D: SYNC/MODE, 5V/div LM2612ABP, Circuit of Figure 1, V Line Transient Response (PWM ...
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Device Information The LM2612 is a simple, step-down DC-DC converter opti- mized for powering low-voltage CPUs or DSPs in cell phones and other miniature battery powered devices. It pro- vides pin-selectable output voltages of 1.05V, 1.3V, 1.5V or 1.8V from ...
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Circuit Operation (Continued) PWM Operation The LM2612 can be set to current-mode PWM operation by connecting the SYNC/MODE pin to VDD. While in PWM (Pulse Width Modulation) mode, the output voltage is regu- lated by switching at a constant frequency ...
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PWM Operation (Continued) PWM Mode Switching Waveform A: INDUCTOR CURRENT, 500mA/div B: SW PIN, 2V/div 10mV/div, AC COUPLED OUT FIGURE 3. Typical Circuit Waveforms in (a) PWM Mode and (b) PFM Mode PFM Operation Connecting the SYNC/MODE ...
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Frequency Synchronization (SYNC/MODE Pin) (Continued) over/undershoot. Note that sharp edged signals from a pulse or function generator can develop under/overshoot as high as 10V at the end of an improperly terminated cable. Drive the SYNC/MODE pin using a signal with ...
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Soft-Start (Continued) Soft start is implemented by ramping up the internal refer- ence in the LM2612 to gradually increase the output voltage. The reference ramps up in about 400µs. When powering up in PWM mode, soft start may take an ...
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Application Information through the windings of the inductor exceeds what the in- TABLE 3. Suggested Capacitors and Their Suppliers Model 22µF, X7R or X5R Ceramic Capacitor for C2 (Output Filter Capacitor) C3225X5RIA226M JMK325BJ226MM ECJ4YB0J226M GRM42-2X5R226K6.3 10µF, 6.3V, X7R or X5R ...
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Application Information lation characteristic of larger devices vulnerable to light. Back-side metalization and/or epoxy coating, along with front-side shading by the printed circuit board, reduce this sensitivity. However, the package has exposed die edges. In particular, micro SMD ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...
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National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. Email: jpn.feedback@nsc.com Tel: 81-3-5639-7560 ...