NCP1529ASNT1GEVB ON Semiconductor, NCP1529ASNT1GEVB Datasheet
NCP1529ASNT1GEVB
Specifications of NCP1529ASNT1GEVB
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NCP1529ASNT1GEVB Summary of contents
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NCP1529 1.7MHz, 1A, High Efficiency, Low Ripple, Adjustable Output Voltage Step-down Converter The NCP1529 step−down DC−DC converter is a monolithic integrated circuit for portable applications powered from one cell Li−ion or three cell Alkaline/NiCd/NiMH batteries. The device is able to ...
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PIN FUNCTION DESCRIPTION Pin Pin TSOP−5 UDFN6 Pin Name 2,4,7 GND (Note VIN Exposed pad for UDFN6 package, named Pin 7, must be connected to system ...
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V battery VIN PWM/PFM CONTROL 4.7 mF GND LOGIC CONTROL Enable EN & THERMAL SHUTDOWN FUNCTIONAL BLOCK DIAGRAM LIMIT FB REFERENCE VOLTAGE Figure 6. Simplified Block Diagram http://onsemi.com 3 2 ...
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MAXIMUM RATINGS Rating Minimum Voltage All Pins Maximum Voltage All Pins (Note 2) Maximum Voltage EN Thermal Resistance, Junction−to−Air (TSOP−5 Package) Thermal Resistance using TSOP−5 Recommended Board Layout (Note 9) Thermal Resistance, Junction−to−Air (UDFN6 Package) Thermal Resistance using UDFN6 Recommended ...
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ELECTRICAL CHARACTERISTICS (Typical values are referenced to T +85°C ambient temperature, unless otherwise noted, operating conditions V Rating INPUT VOLTAGE Input Voltage Range Quiescent Current Standby Current Under Voltage Lockout Under Voltage Hysteretis ANALOG AND DIGITAL PIN Positive going Input ...
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TABLE OF GRAPHS Typical Characteristics for Step−down Converter h Efficiency I Quiescent Current, PFM no load Standby Current, EN Low q OFF F Switching Frequency SW V Load Regulation LOADR V Load Transient Response LOADT V Line ...
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V , INPUT VOLTAGE (V) IN Figure 9. Standby Current vs. Input Voltage (Enable = 0, Temperature = 255C) 100 25°C ...
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I , OUTPUT CURRENT (mA) OUT Figure 15. Load Regulation vs. Output Current ( OUT Figure 17 ...
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Figure 21. Typical Soft−Start ( 100 mA, Temperature = 255C) OUT 2.60 2.55 2.50 2.45 2.40 2.35 2.30 2.25 2.20 −50 − AMBIENT TEMPERATURE (°C) A Figure 23. ...
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Detailed Description The NCP1529 uses a constant frequency, current mode step−down architecture. Both the main (P−channel MOSFET) and synchronous (N−channel MOSFET) switches are internal. The output voltage is set by an external resistor divider in the range of 0.9 V ...
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Soft−Start The NCP1529 uses soft−start to limit the inrush current when the device is initially powered up or enabled. Soft start is implemented by gradually increasing the reference voltage until it reaches the full reference voltage. During startup, a pulsed ...
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Output Voltage Selection In case of adjustable versions, the output voltage is programmed through an external resistor divider connected from then to GND. OUT For low power consumption and noise immunity, the resistor from FB to GND ...
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Table 3. LIST OF INDUCTORS Manufacturer Part Number COILCRAFT DO1605T-222 5.5 x 4.2 COILCRAFT EPL3015-222 3.0 x 3.0 COILCRAFT EPL2014-222 2.0 x 2.0 MURATA LQM2HPN2R2 2.5 x 2.0 MURATA LQH3NPN2R2 3.0 x 3.0 MURATA LQH44PN2R2 4.0 x 4.0 TDK MLP2520S2R2L ...
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Electrical Layout Considerations Implementing a high frequency DC−DC converter requires respect of some rules to get a powerful portable application. Good layout is key to prevent switching regulators to generate noise to application and to themselves. Electrical layout guide lines ...
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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 G NOTES: 1. DIMENSIONING AND TOLERANCING PER 2. CONTROLLING DIMENSION: MILLIMETERS. ...
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... A B NOTE 3 0.05 C *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. N. 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− ...