onsemi NCP1573
The NCP1573 is a low voltage buck controller. It provides the control for a DC−DC power solution producing an output voltage as low as 0.980 V over a wide current range. The NCP1573−based solution is powered from 12 V with the output derived from a 2−7 V supply.| Part No. | NCP1573 |
|---|---|
| Datasheet | NCP1573 Download |
| Manufacturer |  onsemi |
| Description | Low Voltage Synchronous Buck Controller |
| Buy | Stock & Price |
FEATURES
● 0.980 V ± 1.0% Reference Voltage● V2 Control Topology
● 200 ns Transient Response
● Power Good
● Programmable Power Good Delay
● 40 ns Gate Rise and Fall Times (3.3 nF Load)
● Adaptive FET Non−Overlap Time
● Fixed 200 kHz Oscillator Frequency
● On/Off Control Through Use of the COMP Pin
● Overvoltage Protection through Synchronous MOSFETs
● Synchronous N−Channel Buck Design
● Dual Supply, 12 V Control, 2−7 V Power Source 8 1 SO−8 D SUFFIX CASE 751 PIN CONNECTIONS AND MARKING DIAGRAM 1 VCC PWRGD PGDELAY COMP 1573 ALYW 8 GND VFB GATE(L) GATE(H) A = Assembly Location L = Wafer Lot Y = Year W = Work Week ORDERING INFORMATION Device Package Shipping NCP1573D SO−8 98 Units/Rail NCP1573DR2 SO−8 2500 Tape & Reel © Semiconductor Components Industries, LLC, 2006 1 July, 2006 − Rev. 4 Publication Order Number NCP1573/D NCP1573 12 V PWRGD VLOGIC GND R1 50 k C4 0.47 μF R4 VCC 10 GND PWRGD VFB NCP1573 PGDELAY GATE(L) C12 0.01 μF COMP C13 0.1 μF GATE(H) 100 pF C6 5.0 V 33 μF/8.0 V/1.6 Arms + C1 + + C2 C3 NTD4302 Q1 2.7 μH L1 NTD4302 Q2 5.1 k R3 2.5 V/10 A + + + + C8 C9 C10 C11 GND R5 3.3 k 56 μF/4.0 V/1.6 Arms SP−CAP 40 mΩ Figure 1.
