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参数资料
| 型号： | TPS61085DGKT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | GREEN, PLASTIC, MSOP-8 |
| 文件页数： | 19/25页 |
| 文件大小： | 781K |
| 代理商： | TPS61085DGKT |
ELECTRICAL CHARACTERISTICS
www.ti.com ...................................................................................................................................................................................................... SLVS859 – JUNE 2008
VIN = 3.3 V, EN = IN, VS = 12 V, TA = –40°C to 85°C, typical values are at TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY
VIN
Input voltage range
2.3
6
V
IQ
Operating quiescent current into IN
Device not switching, VFB = 1.3 V
70
100
A
ISDVIN
Shutdown current into IN
EN = GND
1
A
UVLO
Undervoltage lockout threshold
VIN falling
2.2
V
VIN rising
2.3
V
TSD
Thermal shutdown
Temperature rising
150
°C
TSD(HYS)
Thermal shutdown hysteresis
14
°C
LOGIC SIGNALS EN, FREQ
VIH
High level input voltage
VIN = 2.3 V to 6 V
2
V
VIL
Low level input voltage
VIN = 2.3 V to 6 V
0.5
V
Ilkg
Input leakage current
EN = FREQ = GND
0.1
A
BOOST CONVERTER
VS
Boost output voltage
VIN +
18.5
V
0.5
VFB
Feedback regulation voltage
1.230
1.238
1.246
V
gm
Transconductance error amplifier
107
A/V
IFB
Feedback input bias current
VFB = 1.238 V
0.1
A
RDS(on)
N-channel MOSFET on-resistance
VIN = VGS = 5 V, ISW = current limit
0.13
0.20
VIN = VGS = 3.3V, ISW = current limit
0.15
0.24
Ilkg
SW leakage current
EN = GND, VSW = 6V
10
A
ILIM
N-Channel MOSFET current limit
2.0
2.6
3.2
A
ISS
Soft-start current
VSS = 1.238 V
7
10
13
A
fosc
Oscillator frequency
FREQ = high
0.9
1.2
1.5
MHz
FREQ = low
480
650
820
kHz
Line regulation
VIN = 2.3 V to 6 V, IOUT = 10 mA
0.0002
%/V
Load regulation
VIN = 3.3 V, IOUT = 1 mA to 400 mA
0.11
%/A
Copyright 2008, Texas Instruments Incorporated
3
Product Folder Link(s): TPS61085
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