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参数资料
型号： TPS62734DRYT
厂商： TEXAS INSTRUMENTS INC
元件分类： 稳压器
英文描述： SWITCHING REGULATOR, 3000 kHz SWITCHING FREQ-MAX, PDSO6
封装： 1 X 1.50 MM, 0.60 MM HEIGHT, PLASTIC, MO-287UFAD, SON-6
文件页数： 21/27页
文件大小： 4698K
代理商： TPS62734DRYT
TPS62730
www.ti.com
SLVSAC3
– MAY 2011
ELECTRICAL CHARACTERISTICS
VIN = 3.0V, VOUT = 2.1V, ON/BYP = VIN, TA = –40°C to 85°C typical values are at TA = 25°C (unless otherwise noted), CIN =
2.2
μF, L = 2.2μH, COUT = 2.2μF, see parameter measurement information
PARAMETER
TEST CONDITIONS
MIN
TYP MAX
UNIT
SUPPLY
VIN
Input voltage range
1.9
3.9
V
ON/BYP = high, IOUT = 0mA. VIN = 3V
25
40
device not switching
IOUT = 0mA. device switching, VIN = 3.0V,
IQ
Operating quiescent current
μA
34
VOUT = 2.1V
ON/BYP = high, Bypass switch active, VIN =
23
VOUT = 2.1V
ISD
Shutdown current, Bypass Switch Activated
ON/BYP = GND, leakage current into VIN
(1)
30
550
nA
ON/BYP = GND, leakage current into VIN,
110
TA = 60°C
(1)
ON/BYP
VIH TH
Threshold for detecting high ON/BYP
1.9 V
≤ VIN ≤ 3.9V , rising edge
0.8
1
V
VIL TH
Threshold for detecting low ON/BYP
1.9 V
≤ VIN ≤ 3.9V , falling edge
0.4
0.6
V
IIN
Input bias Current
0
50
nA
POWER SWITCH
High side MOSFET on-resistance
600
RDS(ON)
VIN = 3.0V
m
Low Side MOSFET on-resistance
350
Forward current limit MOSFET high-side
410
mA
ILIMF
VIN = 3.0V, open loop
Forward current limit MOSFET low side
410
mA
BYPASS SWITCH
RDS(ON) Bypass Switch on-resistance
VIN = 2.1V, IOUT = 20mA, TJmax = 85°C
2.9
3.8
VIN = 3V
2.1
VIT BYP
Automatic Bypass Switch Transition
ON/BYP =
TPS62730 (2.1V)
ON / falling VIN
2.14
2.20
2.3
Threshold (Activation / Deactivation)
high
OFF/ rising VIN
2.19
2.25
2.35
TPS62731 (2.05V)
ON / falling VIN
2.15
OFF / rising VIN
2.20
TPS62732 (1.9V)
ON / falling VIN
2.05
V
OFF / rising VIN
2.10
TPS62734 (2.1V)
ON / falling VIN
2.23
OFF / rising VIN
2.28
TPS62735 (2.3V)
ON / falling VIN
2.23
OFF / rising VIN
2.33
STAT Status Output (Open Drain)
VTSTAT
Threshold level for STAT OUTPUT in % from VOUT
ON/BYP = high and regulator is ready, VIN
95
falling
%
ON/BYP = high and regulator is ready, VIN
98
rising
VOL
Output Low Voltage
Current into STAT pin I = 500
μA, VIN = 2.3V
0.4
V
VOH
Output High Voltage
Open drain output, external pullup resistor
VIN
ILKG
Leakage into STAT pin
ON/BYP = GND, VIN = VOUT = 3V
0
50
nA
REGULATOR
tONmin
Minimum ON time
VIN = 3.0V, VOUT = 2.1V, IOUT = 0 mA
180
ns
tOFFmin
Minimum OFF time
VIN = 2.3V
50
ns
tStart
Regulator start up time from transition ON/BYP = high
VIN = 3.0V, VOUT = 3.0V
50
μs
to STAT = low
(1)
Shutdown current into VIN pin, includes internal leakage
Copyright
2011, Texas Instruments Incorporated
3
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