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參數(shù)資料
| 型號： | LM2670SX-ADJ |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Voltage-Mode SMPS Controller |
| 中文描述： | 電壓模式開關電源控制器 |
| 文件頁數(shù)： | 8/25頁 |
| 文件大小： | 495K |
| 代理商： | LM2670SX-ADJ |
Typical Performance Characteristics
(Circuit of Figure 2)
Continuous Mode Switching Waveforms
V
= 20V, V
OUT
= 5V, I
= 500 mA
L = 100 μH, C
OUT
= 100 μF, C
OUT
ESR = 0.1
Discontinuous Mode Switching Waveforms
V
= 20V, V
= 5V, I
= 300 mA
L = 15 μH, C
OUT
= 68 μF (2x), C
OUT
ESR = 25 m
10004218
Horizontal Time Base: 1 μs/div
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 0.2 A/div
C: Output Ripple Voltage, 50 mV/div AC-Coupled
10004219
Horizontal Time Base: 1 μs/div
A: V
SW
Pin Voltage, 10 V/div.
B: Inductor Current, 0.5 A/div
C: Output Ripple Voltage, 20 mV/div AC-Coupled
Load Transient Response for Continuous Mode
V
IN
= 20V, V
= 5V
L = 100 μH, C
OUT
= 100 μF, C
OUT
ESR = 0.1
Load Transient Response for Discontinuous Mode
V
IN
= 20V, V
= 5V,
L = 47 μH, C
OUT
= 68 μF, C
OUT
ESR = 50 m
10004220
Horizontal Time Base: 50 μs/div
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 100 mA to 500 mA Load Pulse
10004221
Horizontal Time Base: 200 μs/div
A: Output Voltage, 100 mV/div, AC-Coupled
B: Load Current: 100 mA to 400 mA Load Pulse
L
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LM2670SX-ADJ/AULF | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM2670SX-ADJ/NOPB | 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| LM2670SX-ADJEP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM2670EP Enhanced Plastic SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator with Sync |
| LM2670T-12 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM2670T-12/NOPB | 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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