參數資料
型號： NCP1421DMR2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： 600 mA Sync-Rect PFM Step-Up DC-DC Converter Step-Up DC-DC Converter with True-Cutoff and Ring-Killer
中文描述： 1.5 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO8
封裝： LEAD FREE, MICRO PACK-8
文件頁數： 8/14頁
文件大?。?/td> 116K
代理商： NCP1421DMR2G
NCP1421
http://onsemi.com
8
TYPICAL OPERATING CHARACTERISTICS
(V
IN
= 2.5 V, V
OUT
= 3.3 V, I
LOAD
= 50 mA; L = 5.6 H, C
OUT
= 22 F)
Upper Trace: Output Voltage Ripple, 20 mV/Division
Lower Trace: Voltage at Lx pin, 1.0 V/Division
Figure 20. Discontinuous Conduction Mode
Switching Waveform
(V
IN
= 2.5 V, V
OUT
= 3.3 V, I
LOAD
= 500 mA; L = 5.6 H, C
OUT
= 22 F)
Upper Trace: Output Voltage Ripple, 20 mV/Division
Lower Trace: Voltage at LX pin, 1.0 V/Division
Figure 21. Continuous Conduction Mode
Switching Waveform
Figure 22. Line Transient Response for V
OUT
= 3.3 V
Figure 23. Line Transient Response For V
OUT
= 5.0 V
(V
IN
= 1.5 V to 2.5 V; L = 5.6 H, C
OUT
= 22 F, I
LOAD
= 100 mA)
Upper Trace: Output Voltage Ripple, 100 mV/Division
Lower Trace: Battery Voltage, V
IN,
1.0 V/Division
(V
IN
= 1.5 V to 2.5 V; L = 5.6 H, C
OUT
= 22 F, I
LOAD
= 100 mA)
Upper Trace: Output Voltage Ripple, 100 mV/Division
Lower Trace: Battery Voltage, V
IN,
1.0 V/Division
Figure 24. Load Transient Response For V
IN
= 2.5 V
Figure 25. Load Transient Response For V
IN
= 3.0 V
(V
OUT
= 5.0 V, I
LOAD
= 50 mA to 500 mA; L = 5.6 H, C
OUT
= 22 F)
Upper Trace: Output Voltage Ripple, 100 mV/Division
Lower Trace: Load Current, I
LOAD
, 500 mA/Division
(V
OUT
= 3.3 V, I
LOAD
= 50 mA to 500 mA; L = 5.6 H, C
OUT
= 22 F)
Upper Trace: Output Voltage Ripple, 50 mV/Division
Lower Trace: Load Current, I
LOAD
, 500 mA/Division
相關PDF資料
PDF描述
NCP1421 600 mA Sync-Rect PFM Step-Up DC-DC Converter with True-Cutoff and Ring-Killer(帶真切斷（true-cutoff）和振蕩消除（ring-killer）的600mA同步整流PFM步升DC-DC 轉換器)
NCP1421D 600 mA Sync-Rect PFM Step-Up DC-DC Converter Step-Up DC-DC Converter with True-Cutoff and Ring-Killer
NCP1422MNR2 800 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer
NCP1422MNR2G 800 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer
NCP1423DMR2 400 mA Sync−Rect PFM Step−Up DC−DC Converter with True−Cutoff and Ring−Killer
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