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參數(shù)資料
| 型號： | TPS54310PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 6 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | GREEN, PLASTIC, HTSSOP-20 |
| 文件頁數(shù)： | 14/19頁 |
| 文件大?。?/td> | 463K |
| 代理商： | TPS54310PWPRG4 |
www.ti.com
SLVS412D – DECEMBER 2001 – REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
T
J = –40°C to 125°C, VIN = 3 V to 6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ERROR AMPLIFIER
Error amplifier open loop voltage gain
1 k
COMP to AGND (4)
90
110
dB
Error amplifier unity gain bandwidth
Parallel 10 k
, 160 pF COMP to AGND(4)
3
5
MHz
Error amplifier common-mode input voltage range
Powered by internal LDO(4)
0
VBIAS
V
IIB
Input bias current, VSENSE
VSENSE = Vref
60
250
nA
VO
Output voltage slew rate (symmetric), COMP
1
1.4
V/s
PWM COMPARATOR
PWM comparator propagation delay time, PWM
10 mV overdrive(4)
70
85
ns
comparator input to PH pin (excluding dead time)
SLOW-START/ENABLE
Enable threshold voltage, SS/ENA
0.82
1.20
1.40
V
Enable hysteresis voltage, SS/ENA(4)
0.03
V
Falling edge deglitch, SS/ENA(4)
2.5
s
Internal slow-start time
2.6
3.35
4.1
ms
Charge current, SS/ENA
SS/ENA = 0 V
3
5
8
A
Discharge current, SS/ENA
SS/ENA = 0.2 V, VI = 2.7 V
1.5
2.3
4
mA
POWER GOOD
Power good threshold voltage
VSENSE falling
90
%Vref
3
%Vref
Power good hysteresis voltage(4)
35
s
Power good falling edge deglitch(4)
Output saturation voltage, PWRGD
0.18
0.30
V
Leakage current, PWRGD
VI = 5.5 V
1
A
CURRENT LIMIT
4
6.5
VI = 3 V, output shorted(4)
Current limit trip point
A
4.5
7.5
VI = 6 V, output shorted(4)
100
ns
Current limit leading edge blanking time(4)
200
ns
Current limit total response time(4)
THERMAL SHUTDOWN
135
150
165
°C
Thermal shutdown trip point(4)
10
°C
Thermal shutdown hysteresis(4)
OUTPUT POWER MOSFETS
IO = 3 A, VI = 6 V (5)
59
88
rDS(on) Power MOSFET switches
m
IO = 3 A, VI = 3 V (5)
85
136
(4)
Specified by design
(5)
Matched MOSFETs, low side rDS(on) production tested, high side rDS(on) specified by design.
4
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