NCP1521BSNT1G ON Semiconductor, NCP1521BSNT1G Datasheet
NCP1521BSNT1G
Specifications of NCP1521BSNT1G
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NCP1521BSNT1G Summary of contents
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... FB 4 Figure 1. Typical Application − TSOP−5 © Semiconductor Components Industries, LLC, 2010 December, 2010 − Rev NCP1521BSNT1G NCP1521BMUTBG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. ...
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Figure 3. Efficiency vs. Output Current V battery VIN PWM/PFM 1 CONTROL 4.7 mF GND 2 LOGIC CONTROL Enable EN & THERMAL 3 SHUTDOWN Figure 4. Simplified ...
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PIN FUNCTION DESCRIPTION Pin No. Pin No. TSOP5 UDFN6 Pin Name 1 3 VIN GND VIN GND (Top View) Figure 5. Pin ...
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ELECTRICAL CHARACTERISTICS ambient temperature, unless otherwise noted, operating conditions V Rating VIN PIN Input Voltage Range Quiescent Current, PFM No Switching Standby Current, EN Low Undervoltage Lockout (V Falling PIN Positive going Input High Voltage Threshold, EN0 Signal ...
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TABLE OF GRAPHS Typical Characteristics for Step−down Converter I Standby Current STB I Quiescent Current, PFM No Switching q V Output Voltage Accuracy OUT Eff Efficiency Freq Switching Frequency V Soft−Start OUT V Short Circuit Protection OUT V Line Regulation ...
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I OUT −0.5% −1.0% −40 0 TEMPERATURE (°C) Figure 9. Output Voltage Accuracy vs. Temperature ( OUT 100% 95% V 90% OUT 85% V OUT 80% 75% 70% 65% ...
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V OUTIN 2 V/div Figure 15. Typical Soft−Start ( OUT OUT 1.25 1.24 1.23 1.22 25°C 85°C 1.21 1.20 1.19 1.18 1.17 1.16 1.15 2.7 3.2 3.7 4 INPUT ...
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I , (mA) OUT Figure 21. Load Regulation ( OUT V OUT 50 mV/div I OUT 50 mA/div Figure 23. ...
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Overview The NCP1521B uses a constant frequency, current mode step−down architecture. Both the main (P−Channel MOSFET) and synchronous (N−Channel MOSFET) switches are internal. It delivers a constant voltage from either a single Li−Ion or three cell NiMH/NiCd battery to portable ...
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Cycle−by−Cycle Current Limitation From the block diagram (Figure 4 used to realize cycle−by−cycle current limit protection. The comparator compares the LX pin voltage with the reference voltage, which is biased by a constant current. If the inductor ...
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Output Voltage Selection The output voltage is programmed through an external resistor divider connected from V OUT For low power consumption and noise immunity, the resistor from FB to GND (R2) should be in the [100 k−600 k] range. If ...
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Table 3. LIST OF INDUCTOR FDK MIPW3226 Series TDK VLF3010AT Series Taiyo Yuden LQ CBL2012 Coil craft DO1605−T Series Output Capacitor Selection Selecting the proper output capacitor is based on the desired output ripple voltage. Ceramic capacitors with low ESR ...
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... A C SEATING 0.05 PLANE H T *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS TSOP−5 CASE 483−02 ISSUE H NOTES: 1. DIMENSIONING AND TOLERANCING PER 2. CONTROLLING DIMENSION: MILLIMETERS. ...
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... Pb−Free strategy and soldering 0. details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 0. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81− ...