As a member of the SWIFT™ family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components

TPS54073

Manufacturer Part NumberTPS54073
DescriptionAs a member of the SWIFT™ family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components
ManufacturerTexas Instruments
TPS54073 datasheet
 


Specifications of TPS54073

Iout(max)(a)14Vin(min)(v)2.2
Vin(max)(v)4Vout(min)(v)0.9
Vout(max)(v)2.5Iq(typ)(ma)13
Switching Frequency(max)(khz)700Switch Current Limit(typ)(a)14.5
TopologyBuckOperating Temperature Range(c)-40 to 85
Pin/package28HTSSOPDuty Cycle(max)(%)90
Regulated Outputs(#)1  
1
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TPS54073
SLVS547 – FEBRUARY 2005
............................................................................................................................................................................................
ELECTRICAL CHARACTERISTICS (continued)
T
= –40°C to 125°C, VIN = 3 V to 4 V, PVIN = 2.2 V to 4 V (unless otherwise noted)
J
PARAMETER
ERROR AMPLIFIER
Error amplifier open-loop voltage gain
Error amplifier unity gain bandwidth
Error amplifier common mode input voltage
range
Input bias current, VSENSE
Output voltage slew rate (symmetric), COMP
PWM COMPARATOR
PWM comparator propagation delay time, PWM
comparator input to PH pin (excluding
deadtime)
SLOW-START/ENABLE
Enable threshold voltage, SS/ENA
(5)
Enable hysteresis voltage, SS/ENA
(5)
Falling edge deglitch, SS/ENA
Internal slow-start time
Charge current, SS/ENA
Discharge current, SS/ENA
POWER GOOD
Power-good threshold voltage
(5)
Power-good hysteresis voltage
(5)
Power-good falling edge deglitch
Output saturation voltage, PWRGD
Leakage current, PWRGD
CURRENT LIMIT
Current limit
Current limit leading edge blanking time
(5)
Current limit total response time
THERMAL SHUTDOWN
(5)
Thermal shutdown trip point
(5)
Thermal shutdown hysteresis
OUTPUT POWER MOSFETS
r
Power MOSFET switches
DS(on)
(5) Specified by design
4
Submit Documentation Feedback
TEST CONDITIONS
(5)
1 kΩ COMP to AGND
Parallel 10 kΩ, 160 pF COMP to AGND
(5)
Powered by internal LDO
VSENSE = V
ref
(5)
10-mV overdrive
SS/ENA = 0 V
SS/ENA = 0.2 V, VIN = 2.7 V, PVIN = 2.5 V
VSENSE falling
I
= 2.5 mA
(sink)
VIN = 3.3 V, PVIN = 2.5 V
(5)
VIN = 3.3 V, PVIN = 2.5 V
, Output shorted
(5)
VIN = 3 V, PVIN = 2.5 V
VIN = 3.6 V, PVIN = 2.5 V
Product Folder Link(s):
TPS54073
www.ti.com
MIN
TYP
MAX
90
110
(5)
3
5
0
VBIAS
60
250
1
1.4
70
85
0.82
1.2
1.4
0.03
2.5
2.6
3.35
4.1
2
5
1.3
2.3
93
3
35
0.18
0.3
14.5
21
100
200
135
165
10
8
21
8
18
Copyright © 2005, Texas Instruments Incorporated
UNIT
dB
MHz
V
nA
V/ s
ns
V
V
s
ms
8
A
4
mA
%V
ref
%V
ref
s
V
1
A
A
ns
ns
°C
°C
mΩ