参数资料
型号: TPS54110PWP
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 3.5 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO20
封装: GREEN, PLASTIC, HTSSOP-20
文件页数: 25/30页
文件大小: 870K
代理商: TPS54110PWP
SLVS500C
– DECEMBER 2003 – REVISED FEBRUARY 2011
ELECTRICAL CHARACTERISTICS (continued)
TJ = –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
1 k
Ω COMP to AGND(4)
90
110
dB
gain
Error-amplifier unity gain
Parallel 10 k
Ω, 160 pF COMP to AGND(4)
3
5
MHz
bandwidth
Error-amplifier common-mode
Powered by internal LDO(4)
0
VBIAS
V
input voltage range
IIB
Input bias current, VSENSE
VSENSE = Vref
60
250
nA
Output voltage slew rate
VO
1.2
V/
s
(symmetric), COMP(4)
PWM COMPARATOR
PWM comparator propagation
delay time, PWM comparator
10 mV overdrive(4)
70
85
ns
input to PH pin (excluding dead
time)
SLOW-START/ENABLE
Enable threshold voltage,
0.82
1.20
1.40
V
SS/ENA
Enable hysteresis voltage,
0.03
V
SS/ENA(4)
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 = 1.3 V, VI = 1.5 V
1.5
2.3
4
mA
POWER GOOD
Power-good threshold voltage
VSENSE falling
93
%Vref
Power-good hysteresis voltage(4)
3
%Vref
Power-good falling-edge
35
s
deglitch(4)
Output saturation voltage,
I(sink) = 2.5 mA
0.18
0.30
V
PWRGD
Leakage current, PWRGD
VI = 5.5 V
1
A
CURRENT LIMIT
VI = 3 V, output shorted
(4)
3.0
Current limit trip point
A
VI = 6 V, output shorted
(4)
3.5
Current-limit leading edge
100
ns
blanking time
Current-limit total response time
200
ns
THERMAL SHUTDOWN
Thermal-shutdown trip point(4)
135
150
165
°C
Thermal-shutdown hysteresis(4)
10
°C
OUTPUT POWER MOSFETS
IO = 1.5 A,
VI = 6 V
(6)
240
480
rDS(on)
Power MOSFET switches(5)
m
Ω
IO = 1.5 A,
VI = 3 V
(6)
345
690
(4)
Specified by design
(5)
Includes package and bondwire resistance
(6)
Matched MOSFETs, low side rDS(on) production tested, high side rDS(on) specified by design
4
2003–2011, Texas Instruments Incorporated
Product Folder Link(s): TPS54110
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