NCP1575
NCP1575 is Low Voltage Synchronous Buck Controller manufactured by onsemi.
Features http://onsemi. MARKING DIAGRAM
8 8 1 SOIC- 8 D SUFFIX CASE 751 1 1575 ALYW
= Assembly Location = Wafer Lot = Year = Work Week
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Pb- Free Packages are Available 0.980 V ±1.0% Reference Voltage V2 Control Topology 200 ns Transient Response Programmable Soft- Start 40 ns Gate Rise and Fall Times (3.3 n F Load) Adaptive FET Nonoverlap Time Default 200 k Hz Oscillator Frequency (No External Resistor Required) User- Programmable Oscillator Frequency (One External Resistor Required) Undervoltage Lockout On/Off Control Through Use of the P Pin Overvoltage Protection through Synchronous MOSFETs Synchronous N- Channel Buck Design “12 V Only” or Dual Supply Operation
PIN CONNECTIONS
VCC ROSC NC P 1 8 GND VFB GATE(L) GATE(H)
ORDERING INFORMATION
Device NCP1575D NCP1575DG NCP1575DR2 NCP1575DR2G Package SOIC- 8 SOIC- 8 (Pb- Free) SOIC- 8 SOIC- 8 (Pb- Free) Shipping† 98 Units/Rail 98 Units/Rail 2500 Tape & Reel 2500 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.
© Semiconductor ponents Industries, LLC, 2004
November, 2004
- Rev. 6
Publication Order Number NCP1575/D
12 V
D3 BAS20HT1 R1 470 D2 BAV99LT1 C11 0.1 m F
L1 1.0 m H
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C1 1000 m F/16 V
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C2 1000 m F/16 V
C3 0.1 m F U1 C9 0.01 m F GND VFB GATE(L) GATE(H) Q2 NTD110N02R NCP1575 L2 4.7 m H Q1 NTD60N02R 2.5 V/ 10 A
Q3 MMBT3904LT1 D1 18 V Zener BZX84C18V VCC C4 1.0 m F R3 Option ROSC NC P C11 0.1 m F
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C5 C6 1000 m F 1000 m F R6 5.11 k C10 4700 p F
C8 104
R5 3.32 k
0.98 V
Figure 1. 12 V Only Applications Diagram, 12 V to 2.5 V Conversion at 10 A
5V 12 V 33 m F 8 V/1.6 A RMS × 2 Specialty Polymer 60 m W ESR 1.2 V/ 10 A 56 m F 4 V/1.6 A RMS × 2 Specialty Polymer 40 m W ESR
NTD4302 1.4 m H NCP1575 VCC ROSC NC P 33 k 0.1 m F 0.1 m F GND VFB GATE(L) GATE(H) 1000 p F...
