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TPS65218B1PHPT Datasheet(PDF) 9 Page - Texas Instruments

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Part # TPS65218B1PHPT
Description  Power Management
Download  87 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65218B1PHPT Datasheet(HTML) 9 Page - Texas Instruments

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9
TPS65218
www.ti.com
SLDS206B – NOVEMBER 2014 – REVISED FEBRUARY 2016
Product Folder Links: TPS65218
Submit Documentation Feedback
Copyright © 2014–2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
L
Nominal inductor value
1.0
1.5
2.2
µH
Tolerance
–30%
30%
COUT
Nominal output capacitor value
Ceramic, X5R or X7R
10
100
µF
Tolerance
–20%
20%
DCDC4 (3.3-V BUCK-BOOST) / ANALOG AND I/O
VIN_DCDC4
Input voltage soft-start range
VIN_BIAS > VUVLO, –40°C to 55°C
3.4
V
VIN_BIAS > VUVLO, 56°C to 105°C
3.8
Input voltage operating range
VIN_BIAS > VUVLO, –40°C to 105°C
2.7
5.5
V
VDCDC4
Output voltage range
Adjustable through I2C
1.175
3.4
V
DC accuracy
2.7 V
≤ VIN ≤ 5.5 V;
0 A
≤ IOUT ≤ 1 A
–2%
2%
Output voltage ripple
PFM mode enabled;
4.2 V
≤ VIN ≤ 5.5 V;
0 A
≤ IOUT ≤ 1 A
COUT = 80 µF
200
mVpp
Minimum duty cycle in step-
down mode
18%
IOUT
Continuous output current
VIN_DCDC4 = 2.8 V, VOUT = 3.3 V
1.0
A
VIN_DCDC4 = 3.6 V, VOUT = 3.3 V
1.3
VIN_DCDC4 = 5.0 V, VOUT = 3.3 V
1.6
IQ
Quiescent current
Total current from IN_DCDC4 pin; Device not
switching, no load
25
50
µA
fSW
Switching frequency
2400
kHz
RDS(ON)
High-side FET ON-resistance
VIN_DCDC3 = 3.6 V
IN_DCDC4 to L4A
166
m
Ω
L4B to DCDC4
149
Low-side FET ON-resistance
VIN_DCDC3 = 3.6 V
L4A to GND
142
190
L4B to GND
144
190
ILIMIT
Average switch current limit
VIN_DCDC4 = 3.6 V
3000
mA
VPG
Power-good threshold
VOUT falling
STRICT = 0
88.5%
90%
91.5%
STRICT = 1
95%
95.5%
96%
Hysteresis
VOUT rising
STRICT = 0
3.8%
4.1%
4.4%
STRICT = 1
0.25%
Deglitch
VOUT falling
STRICT = 0
1
ms
STRICT = 1
50
µs
VOUT rising
STRICT = 0
10
STRICT = 1
10
Time-out
5
ms
VOV
Overvoltage detection
threshold(2)
VOUT rising
104%
104.5%
105%
Hysteresis
VOUT falling
0.25%
Deglitch
VOUT rising
50
µs
IINRUSH
Inrush current
VIN_DCDC4 = 3.6 V; COUT = 10 to 100 µF
500
mA
RDIS
Discharge resistor
150
250
350
Ω
L
Nominal inductor value
1.2
1.5
2.2
µH
Tolerance
–30%
30%
COUT
Nominal output capacitor value
Ceramic, X5R or X7R
40
100
µF
Tolerance
–20%
20%


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