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TPS56120X Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce TPS56120X
Description  4.5-V to 17-V Input, 1-A Synchronous Step-Down Voltage Regulator in 6-Pin SOT-23
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS56120X Fiches technique(HTML) 5 Page - Texas Instruments

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5
TPS561201, TPS561208
www.ti.com
SLVSC95 – APRIL 2017
Product Folder Links: TPS561201 TPS561208
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
(1)
Not production tested
6.5 Electrical Characteristics
TJ = –40°C to 125°C, V = 12 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
SUPPLY CURRENT
IVIN
Operating – non-switching
supply current
VIN current, EN = 5 V, VFB =
0.8 V
TPS561201
380
520
µA
TPS561208
590
750
IVINSDN
Shutdown supply current
VIN current, EN = 0 V
1
10
µA
LOGIC THRESHOLD
VENH
EN high-level input voltage
EN
1.6
V
VENL
EN low-level input voltage
EN
0.8
V
REN
EN pin resistance to GND
VEN = 12 V
225
400
900
k
VFB VOLTAGE AND DISCHARGE RESISTANCE
VFB threshold voltage
VO = 1.05 V, IO = 10 mA, Eco-mode™ operation
774
mV
VFBTH
VFB threshold voltage
VO = 1.05 V, continuous mode operation
749
768
787
mV
IVFB
VFB input current
VFB = 0.8 V
0
±0.1
µA
MOSFET
RDS(on)h
High-side switch resistance
TA = 25°C, VBST – SW = 5.5 V
140
m
RDS(on)l
Low-side switch resistance
TA = 25°C
84
m
CURRENT LIMIT
Iocl
Current limit
DC current, VOUT = 1.05 V, L1 = 2.2 µH
1.2
1.6
2.0
A
THERMAL SHUTDOWN
TSDN
Thermal shutdown threshold(1)
Shutdown temperature
160
°C
Hysteresis
25
ON-TIME TIMER CONTROL
tOFF(MIN)
Minimum off time
VFB = 0.5 V
220
310
ns
SOFT START
tss
Soft-start time
Internal soft-start time
1.0
ms
Frequency
Fsw
Switching frequency
VIN = 12 V, VO = 1.05 V, FCCM mode
580
kHz
OUTPUT UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
VUVP
Output UVP threshold
Hiccup detect (H > L)
65%
THICCUP_WAI
T
Hiccup wait time
1.8
ms
THICCUP_RE
Hiccup time before restart
15
ms
UVLO
UVLO
UVLO threshold
Wake up VIN voltage
4.0
4.3
V
Shut down VIN voltage
3.3
3.6
Hysteresis VIN voltage
0.4


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