參數(shù)資料
型號(hào)： TPS62243DRVR
廠商： Texas Instruments, Inc.
英文描述： 2.25 MHz 300 mA Step Down Converter in 2x2SON/TSOT23 Package
中文描述： 2.25兆赫300毫安降壓轉(zhuǎn)換器2x2SON/TSOT23包
文件頁(yè)數(shù)： 23/29頁(yè)
文件大小： 859K
代理商： TPS62243DRVR
www.ti.com
ELECTRICAL CHARACTERISTICS
TPS62240, TPS62242, TPS62243
SLVS762B – JUNE 2007 – REVISED SEPTEMBER 2007
Over full operating ambient temperature range, typical values are at TA = 25°C. Unless otherwise noted, specifications apply
for condition VIN = EN = 3.6V. External components CIN = 4,7μF 0603, COUT = 10μF 0603, L = 2.2μH, refer to parameter
measurement information.
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
SUPPLY
VIN
Input voltage range
2
6
V
2.3 V
≤ VIN ≤ 6 V
300
IOUT
Output current
mA
2 V
≤ VIN ≤ 2.3 V
150
IOUT = 0 mA. PFM mode enabled (MODE = GND)
15
device not switching
μA
IOUT = 0 mA. PFM mode enabled (MODE = GND)
IQ
Operating quiescent current
18.5
device switching, VOUT = 1.8 V,
(1)
IOUT = 0 mA, switching with no load (MODE = VIN),
3.8
mA
PWM operation , VOUT = 1.8 V, VIN = 3 V
ISD
Shutdown current
EN = GND
0.1
1
μA
Falling
1.85
UVLO
Undervoltage lockout threshold
V
Rising
1.95
ENABLE, MODE
VIH
High level input voltage, EN, MODE
2 V
≤ VIN ≤ 6 V
1
VIN
V
VIL
Low level input voltage, EN, MODE
2 V
≤ VIN ≤ 6 V
0
0.4
V
IIN
Input bias current, EN, MODE
EN, MODE = GND or VIN
0.01
1
μA
POWER SWITCH
High side MOSFET on-resistance
240
480
RDS(on)
VIN = VGS = 3.6 V, TA = 25°C
m
Low side MOSFET on-resistance
180
380
Forward current limit MOSFET
ILIMF
VIN = VGS = 3.6 V
0.56
0.7
0.84
A
high-side and low side
TSD
Thermal shutdown
Increasing junction temperature
140
°C
Thermal shutdown hysteresis
Decreasing junction temperature
20
°C
OSCILLATOR
fSW
Oscillator frequency
2 V
≤ VIN ≤ 6 V
2
2.25
2.5
MHz
OUTPUT
VOUT
Adjustable output voltage range
0.6
VIN
V
Vref
Reference Voltage
600
mV
MODE = VIN, PWM operation, 2 V ≤ VIN ≤ 6 V, in
Feedback voltage
–1.5%
0% 1.5%
fixed output voltage versions VFB = VOUT, See
(2)
VFB
Feedback voltage PFM mode
MODE = GND, device in PFM mode
0%
Load regulation
-0.5
%/A
tStart Up
Start-up Time
Time from active EN to reach 95% of VOUT nominal
500
μs
tRamp
VOUT ramp UP time
Time to ramp from 5% to 95% of VOUT
250
μs
Ilkg
Leakage current into SW pin
VIN = 3.6 V, VIN = VOUT = VSW, EN = GND,
(3)
0.1
1
μA
(1)
See the parameter measurement information.
(2)
for VIN = VO + 0.6
(3)
In fixed output voltage versions, the internal resistor divider network is disconnected from FB pin.
Copyright 2007, Texas Instruments Incorporated
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Product Folder Link(s): TPS62240 TPS62242 TPS62243
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TPS62243DRVRG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.25MHz 300mA 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
TPS62243DRVT 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.25MHz 300mA 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
TPS62243DRVTG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.25MHz 300mA 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
TPS62250DRVR 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.25MHz,1A Peak Crnt Ltd Step-Down Cnvtr 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
TPS62250DRVRG4 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 2.25MHz,1A Peak Crnt Ltd 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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