參數(shù)資料
型號(hào)： TPS62227DDC
廠商： Texas Instruments, Inc.
英文描述： 400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
中文描述： 400毫安，1.25 MHz的，高效率，降壓型轉(zhuǎn)換器薄，SOT23封裝
文件頁(yè)數(shù)： 3/24頁(yè)
文件大?。?/td> 709K
代理商： TPS62227DDC
www.ti.com
ELECTRICAL CHARACTERISTICS
V
I
= 3.6 V, V
O
= 1.8 V, I
O
= 200 mA, EN = VIN, T
A
= -40°C to 85°C, typical values are at T
A
= 25°C (unless otherwise noted)
TPS62220, TPS62221, TPS62222
TPS62223, TPS62224, TPS62227
TPS62228, TPS62229
SLVS491D–SEPTEMBER 2003–REVISED MARCH 2006
PARAMETER
SUPPLY CURRENT
V
I
I
Q
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input voltage range
Operating quiescent current
Shutdown supply current
Undervoltage lockout threshold
2.5
6
V
μA
μA
V
I
O
= 0 mA, Device is not switching
EN = GND
15
0.1
25
1
2
1.5
ENABLE
EN high level input voltage
EN low level input voltage
EN input bias current
POWER SWITCH
1.3
V
V
μA
V
(EN)
0.4
0.1
I
(EN)
EN = GND or VIN
0.01
V
I
= V
GS
= 3.6 V
V
I
= V
GS
= 2.5 V
V
I
= V
GS
= 3.6 V
V
I
= V
GS
= 2.5 V
V
DS
= 6 V
V
DS
= 6 V
2.5 V < V
I
< 6 V
530
670
430
530
0.1
0.1
670
670
850
540
660
P-channel MOSFET on-resistance
m
r
DS(on)
N-channel MOSFET on-resistance
m
P-channel leakage current
N-channel leakage current
P-channel current limit
OSCILLATOR
f
S
Switching frequency
OUTPUT
I
O
Output current
Adjustable output voltage
V
O
range
V
ref
Reference voltage
1
1
μA
μA
mA
I
lkg
I
(LIM)
600
880
0.8
1.25
1.85
MHz
400
mA
TPS62220
0.7
V
IN
V
0.5
V
V
I
= 3.6 V to 6 V, I
O
= 0 mA
V
I
= 3.6 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 0 mA
V
I
= 2.5 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 0 mA
V
I
= 2.5 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 0 mA
V
I
= 2.5 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 0 mA
V
I
= 2.5 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 0 mA
V
I
= 2.5 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.7 V to 6 V, I
O
= 0 mA
V
I
= 2.7 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.7 V to 6 V, I
O
= 0 mA
V
I
= 2.7 V to 6 V, 0 mA
≤
I
O
≤
400 mA
V
I
= 2.5 V to 6 V, I
O
= 10 mA
I
O
= 100 mA to 400 mA
V
I
> V
O
, 0 V
≤
V
(SW)
≤
V
I
V
I
= open, EN = GND, V
(SW)
= 6 V
0%
-3%
0%
-3%
0%
-3%
0%
-3%
0%
-3%
0%
-3%
0%
-3%
0%
-3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
3%
TPS62220
Adjustable
Feedback voltage, See
(1)
TPS62221
1.5 V
TPS62224
1.6 V
TPS62229
1.7 V
TPS62222
1.8 V
V
O
Fixed output voltage
TPS62228
1.875 V
TPS62223
2.3 V
TPS62227
1.2 V
Line regulation
Load regulation
Leakage current into SW pin
Reverse leakage current into pin SW
0.26
%/V
%/mA
μA
μA
0.0014
0.1
0.1
1
1
I
lkg
(1)
For output voltages
≤
1.2 V, a 22-μF output capacitor value is required to achieve a maximum output voltage accuracy of 3% while
operating in power-save mode (PFM mode). For output voltages
≥
2 V, an inductor of 10 μH and an output capacitor of
≥
10 μF is
recommended. See the
Application Information
section for external components.
3
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參數(shù)描述
TPS62227DDCR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.2V Out 400mA 95% Eff Step-Down Cnvrtr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62227DDCRG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.2V Out 400mA 95% Eff Step-Down Cnvrtr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62227DDCT 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.2VOtp 400mA95%Eff Cnvrtr15uA ThinSOT23 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62227DDCTG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.2V Out 400mA 95% Eff Step-Down Cnvrtr RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS62228DDCR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 1.875V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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