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参数资料
| 型号： | TPS62220DDCRG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | GREEN, PLASTIC, TSOT-23, 5 PIN |
| 文件页数： | 18/24页 |
| 文件大小： | 640K |
| 代理商： | TPS62220DDCRG4 |
ELECTRICAL CHARACTERISTICS
www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009
VI = 3.6 V, VO = 1.8 V, IO = 200 mA, EN = VIN, TA = -40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VI
Input voltage range
2.5
6
V
IQ
Operating quiescent current
IO = 0 mA, Device is not switching
15
25
A
Shutdown supply current
EN = GND
0.1
1
A
Undervoltage lockout threshold
1.5
2
V
ENABLE
EN high level input voltage
1.3
V
V(EN)
EN low level input voltage
0.4
V
I(EN)
EN input bias current
EN = GND or VIN
0.01
0.1
A
POWER SWITCH
VI = VGS = 3.6 V
530
670
P-channel MOSFET on-resistance
m
VI = VGS = 2.5 V
670
850
rDS(on)
VI = VGS = 3.6 V
430
540
N-channel MOSFET on-resistance
m
VI = VGS = 2.5 V
530
660
P-channel leakage current
VDS = 6 V
0.1
1
A
Ilkg
N-channel leakage current
VDS = 6 V
0.1
1
A
I(LIM)
P-channel current limit
2.5 V < VI < 6 V
600
670
880
mA
OSCILLATOR
fS
Switching frequency
0.8
1.25
1.85
MHz
OUTPUT
IO
Output current
400
mA
Adjustable output voltage
VO
TPS62220
0.7
VIN
V
range
Vref
Reference voltage
500
mV
VI = 3.6 V to 6 V, IO = 0 mA
0%
3%
TPS62220
Feedback voltage, See (1)
Adjustable
VI = 3.6 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.7 V to 6 V, IO = 0 mA
0%
3%
TPS62227
1.2 V
VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.5 V to 6 V, IO = 0 mA
0%
3%
TPS62221
1.5 V
VI = 2.5 V to 6 V, 0 mA≤ IO ≤ 400 mA
-3%
3%
VI = 2.5 V to 6 V, IO = 0 mA
0%
3%
TPS62224
1.6 V
VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.5 V to 6 V, IO = 0 mA
0%
3%
TPS62229
1.7 V
VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VO
Fixed output voltage
VI = 2.5 V to 6 V, IO = 0 mA
0%
3%
TPS62222
1.8 V
VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.5 V to 6 V, IO = 0 mA
0%
3%
TPS62228
1.875 V
VI = 2.5 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.7 V to 6 V, IO = 0 mA
0%
3%
TPS62225
2.2 V
VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
VI = 2.7 V to 6 V, IO = 0 mA
0%
3%
TPS62223
2.3 V
VI = 2.7 V to 6 V, 0 mA ≤ IO ≤ 400 mA
-3%
3%
(1)
For output voltages
≤ 1.2 V, a 22
F 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
H and an output capacitor of ≥ 10 F is
recommended. See the Application Information section for external components.
Copyright 2003–2009, Texas Instruments Incorporated
3
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