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参数资料
| 型号： | TPS62112MRSATEP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 2.4 A SWITCHING REGULATOR, 1100 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | PLASTIC, QFN-16 |
| 文件页数： | 20/25页 |
| 文件大小： | 786K |
| 代理商： | TPS62112MRSATEP |
www.ti.com
ELECTRICAL CHARACTERISTICS
SLVS630B – APRIL 2007 – REVISED OCTOBER 2007
VI = 12 V, VO = 3.3 V, IO = 600 mA, EN = VI, TA = –55°C to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
VI
Input voltage range (1)
3.1
17
V
IO = 0 mA, SYNC = GND, VI = 7.2 V,
20
TA = 25°C
(2)
A
IO = 0 mA, SYNC = GND,
23
26
TPS62110
I(Q)
Operating quiescent current
VI = 17 V
(2)
TPS62111
23
29
IO = 0 mA, SYNC = GND,
VI = 17 V
(2)
TPS62112
EN = GND
1.5
5
I(SD)
Shutdown current
A
EN = GND, TA = 25°C, VI = 7.2 V
1.5
3
ENABLE
VIH
EN high-level input voltage
1.3
V
VIL
EN low-level input voltage
0.3
V
EN trip-point hysteresis
170
mV
IIKG
EN input leakage current
EN = GND or VI, VI = 17 V
0.01
0.2
A
I(EN)
EN input current
0.6 V
≤ V(EN) ≤ 4 V
10
A
V(UVLO)
Undervoltage lockout threshold
Input voltage falling
2.8
3
3.1
V
Undervoltage lockout hysteresis
250
mV
POWER SWITCH
VI ≥ 5.4 V, IO = 350 mA
165
250
rDS(ON)
P-channel MOSFET on-resistance
VI = 3.5 V, IO = 200 mA
340
m
VI = 3 V, IO = 100 mA
490
P-channel MOSFET leakage
VDS = 17 V
0.1
1
A
current
P-channel MOSFET current limit
VI = 7.2 V, VO = 3.3 V
2400
mA
VI ≥ 5.4 V, IO = 350 mA
145
200
rDS(ON)
N-channel MOSFET on-resistance
VI = 3.5 V, IO = 200 mA
170
m
VI = 3 V, IO = 100 mA
200
N-channel MOSFET leakage
VDS = 17 V
0.1
3
A
current
POWER GOOD OUTPUT, LBI, LBO
V(PG)
Power good trip voltage
VO – 1.6%
V
VO ramping positive
50
Power good delay time
s
VO ramping negative
200
VOL
PG, LBO output low voltage
V(FB) = 1.1 × VO nominal, IOL = 1 mA
0.3
V
IOL
PG, LBO sink current
1
mA
PG, LBO output leakage current
V(FB) = VO nominal
0.01
0.25
A
Minimum supply voltage for valid
3
V
power good, LBI, LBO signal
VLBI
Low battery input trip voltage
Input voltage falling
1.256
V
ILBI
LBI input leakage current
10
100
nA
Low battery input trip-point
1.5
%
accuracy
VLBI,HYS Low battery input hysteresis
25
mV
(1)
Not Production tested
(2)
Device is not switching.
4
Copyright 2007, Texas Instruments Incorporated
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