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參數資料
| 型號： | TPS62044DRC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.2 A/1.25 MHZ, HIGH EFFICIENCY STEP DOWN CONVERTER |
| 中文描述： | 1.2 A/1.25兆赫，高效降壓轉換器 |
| 文件頁數： | 3/21頁 |
| 文件大?。?/td> | 372K |
| 代理商： | TPS62044DRC |
SLVS463A JUNE 2003 REVISED OCTOBER 2003
www.ti.com
3
ELECTRICAL CHARACTERISTICS
VI = 3.6 V, VO = 1.8 V, IO = 600 mA, EN = VIN, TA = 40
°
C to 85
°
C, typical values are at TA = 25
°
C (unless otherwise noted)(1)
SUPPLY CURRENT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI
I(Q)
ISD
VUVLO
ENABLE AND MODE
VEN
VEN
IEN
V(MODE)
V(MODE)
I(MODE)
POWER SWITCH
Input voltage range
2.5
6.0
V
μ
A
μ
A
V
Operating quiescent current
IO = 0 mA, device is not switching
EN = GND
18
35
Shutdown supply current
0.1
1
Undervoltage lockout threshold
1.5
2.3
EN high level input voltage
1.4
V
EN low level input voltage
0.4
V
μ
A
V
EN input bias current
EN = GND or VIN
0.01
1.0
MODE high level input voltage
1.4
MODE low level input voltage
0.4
V
μ
A
MODE input bias current
MODE = GND or VIN
0.01
1.0
rDS(ON)
P-channel MOSFET onresistance
VI = VGS = 3.6 V
VI = VGS = 2.5 V
VDS = 6.0 V
VI = VGS = 3.6 V
VI = VGS = 2.5 V
VDS = 6.0 V
2.5 V < VI< 6.0 V
115
210
m
m
μ
A
m
m
μ
A
A
°
C
P-channel MOSFET onresistance
145
270
Ilkg(P)
P-channel leakage current
1
rDS(ON)
N-channel MOSFET onresistance
85
200
N-channel MOSFET onresistance
115
280
IIkg(N)
IL
N-channel leakage current
1
P-channel current limit
1.5
1.85
2.2
Thermal shutdown
150
OSCILLATOR
fS
Oscillator frequency
VFB = 0.5 V
VFB = 0 V
1
1.25
1.5
MHz
625
kHz
OUTPUT
VO
Vref
Adjustable output voltage range
TPS62040
0.7
VIN
V
Reference voltage
0.5
V
VFB
Feedback voltage
TPS62040
Adjustable
VI = 2.5 V to 6.0 V; IO= 0 mA
VI = 2.5 V to 6.0 V; 0 mA
≤
IO
≤
1.2 A
0%
3%
3%
3%
TPS62042
1.5V
VI = 2.5 V to 6.0 V; IO = 0 mA
VI = 2.5 V to 6.0 V; 0 mA
≤
IO
≤
1.2 A
0%
3%
3%
3%
VO
Fixed output voltage
TPS62043
1.6V
VI = 2.5 V to 6.0 V; IO = 0 mA
VI = 2.5 V to 6.0 V; 0 mA
≤
IO
≤
1.2 A
0%
3%
3%
3%
TPS62044
1.8V
VI = 2.5 V to 6.0 V; IO = 0 mA
VI = 2.5 V to 6.0 V; 0 mA
≤
IO
≤
1.2 A
0%
3%
3%
3%
TPS62046
3.3V
VI = 3.6 V to 6.0 V; IO = 0 mA
VI = 3.6 V to 6.0 V; 0 mA
≤
IO
≤
1.2 A
VI = VO + 0.5 V (min. 2.5 V) to 6.0 V,
IO = 10 mA
IO = 10 mA to 1200 mA
VI>VO, 0 V
≤
Vsw
≤
VI
VI = open; EN = GND; VSW = 6.0 V
VFB = 0 V
0%
3%
3%
3%
Line regulation(1)
0
%/V
Load regulation(1)
0
%/mA
μ
A
μ
A
kHz
IIkg(SW)
Leakage current into SW pin
0.1
1
Reverse leakage current into pin SW
0.1
1
f
Short circuit switching frequency
(1)The line and load regulations are digitally controlled to assure an output voltage accuracy of
±
3%.
625
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS62044DRCR | 功能描述:直流/直流開關調節器 1.8V Out 1.2A Hi-Ef Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62044DRCRG4 | 功能描述:直流/直流開關調節器 1.8V Out 1.2A Hi-Ef Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62046DGQ | 功能描述:直流/直流開關調節器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62046DGQG4 | 功能描述:直流/直流開關調節器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62046DGQR | 功能描述:直流/直流開關調節器 3.3V Out/1.2A Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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