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TPS5618PWP Datasheet(PDF) 8 Page - Texas Instruments

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No. de pieza TPS5618PWP
Descripción Electrónicos  SYNCHRONOUS-BUCK HYSTERETIC REGULATOR CONTROLLER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS5618PWP Datasheet(HTML) 8 Page - Texas Instruments

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TPS5615, TPS5618, TPS5625, TPS5633
SYNCHRONOUS-BUCK HYSTERETIC REGULATOR CONTROLLER
SLVS177B – SEPTEMBER 1998 – REVISED JULY 2000
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VCC
11.4
13
V
BOOT to DRVGND
0
28
BOOT to BOOTLO
0
13
Input voltage
INHIBIT, LODRV, PWRGD, OCP
0
6
V
LOHIB, LOSENSE, IOUTLO, HISENSE
0
13
VSENSE
0
4.5
Voltage difference between ANAGND and DRVGND
0
±0.2
V
Output current, VREFB†
0
0.4
mA
† Not recommended to load VREFB other than to set hysteresis since IVREFB sets slowstart time.
electrical characteristics over recommended operating virtual junction temperature range,
VCC = 12 V, IDRV = 0 A (unless otherwise noted)
reference
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
TPS5615
1.485
1.515
VREF
Reference
TPS5618
VCC =11 4Vto12 6 V
1.782
1.818
V
VREF
Reference
voltage
TPS5625
VCC = 11.4 V to 12.6 V
2.475
2.525
V
TPS5633
3.267
3.333
VREFB
Output voltage
IREFB = 50 µA
VREF–2%
VREF
VREF+2%
V
VREFB
Output regulation
10
µA ≤ IO ≤ 500 µA
2
mV
power good
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Undervoltage trip threshold
90
93
95
%VREF
Low-level output voltage, PWRGD
IO = 5 mA
0.5
0.75
V
High-level input current, PWRGD
VPWRGD = 6 V
1
µA
Hysteresis
10
mV
overvoltage protection
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Overvoltage trip threshold
112
115
120
%VREF
Hysteresis
See Note 2
10
mV
NOTE 2: Ensured by design, not tested.
slowstart
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Charge current
VSLOWST = 0.5 V,
IVREFB = 65 µA
10.4
13
15.6
µA
Discharge current
VSOFTST = 1 V
3
mA
Comparator input offset voltage
10
mV
Comparator input bias current
See Note 2
10
100
nA
Hysteresis
–7.5
7.5
mV
NOTE 2: Ensured by design, not tested.


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