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TPS65020 Datasheet(PDF) 11 Page - Texas Instruments

Part # TPS65020
Description  Power Management IC
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS65020 Datasheet(HTML) 11 Page - Texas Instruments

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TPS65020
www.ti.com
SLVS607D – SEPTEMBER 2005 – REVISED JANUARY 2016
7.9 Electrical Characteristics: VDCDC2 Step-Down Converter
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 85°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
VI
Input voltage range, VINDCDC2
2.5
6
V
IO
Maximum output current
1000
mA
I(SD)
Shutdown supply current in VINDCDC2
DCDC2_EN = GND
0.1
1
μA
rDS(on)
P-channel MOSFET on-resistance
VINDCDC2 = V(GS) = 3.6 V
140
300
m
Ilkg
P-channel leakage current
VINDCDC2 = 6 V
2
μA
rDS(on)
N-channel MOSFET on-resistance
VINDCDC2 = V(GS) = 3.6 V
150
297
m
Ilkg
N-channel leakage current
V(DS) = 6 V
7
10
μA
ILIMF
Forward current limit (P- and N-channel)
2.5 V < VINDCDC2 < 6 V
1.4
1.55
1.7
A
fS
Oscillator frequency
1.3
1.5
1.7
MHz
VINDCDC2 = 2.5 V to 6 V;
1.8 V
–2%
2%
0 mA
≤ IO ≤ 1 A
Fixed output voltage
FPWMDCDC2=0
VINDCDC2 = 2.8 V to 6 V;
2.5 V
–2%
2%
0 mA
≤ IO ≤ 1 A
VINDCDC2 = 2.5 V to 6 V;
1.8 V
–2%
2%
0 mA
≤ IO ≤ 1 A
Fixed output voltage
FPWMDCDC2=1
VINDCDC2 = 2.8 V to 6 V;
2.5 V
–1%
1%
0 mA
≤ IO ≤ 1 A
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 +0.3 V (min 2.5 V)
–2%
2%
divider at DEFDCDC2 FPWMDCDC2=0
to 6 V; 0 mA
≤ IO ≤ 1 A
Adjustable output voltage with resistor
VINDCDC2 = VDCDC2 +0.3 V (min 2.5 V)
–1%
1%
divider at DEFDCDC2; FPWMDCDC2=1
to 6 V; 0 mA
≤ IO ≤ 1 A
VINDCDC2 = VDCDC2 + 0.3 V (min. 2.5 V)
Line Regulation
0%
V
to 6 V; IO = 10 mA
Load Regulation
IO = 10 mA to 1 mA
0.25%
A
VDCDC2 ramping from 5% to 95% of target
Soft-start ramp time
750
μs
value
Internal resistance from L2 to GND
1
M
VDCDC2 discharge resistance
300
(1)
Typical values are at TA = 25°C
7.10 Electrical Characteristics: VDCDC3 Step-Down Converter
VINDCDC1 = VINDCDC2 = VINDCDC3 = VCC = VINLDO = 3.6 V, VBACKUP = 3 V, TA = –40°C to 85°C (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
VI
Input voltage range, VINDCDC3
2.5
6
V
IO
Maximum output current
800
mA
I(SD)
Shutdown supply current in VINDCDC3
DCDC3_EN = GND
0.1
1
μA
rDS(on)
P-channel MOSFET on-resistance
VINDCDC3 = V(GS) = 3.6 V
310
698
m
Ilkg
P-channel leakage current
VINDCDC3 = 6 V
0.1
2
μA
rDS(on)
N-channel MOSFET on-resistance
VINDCDC3 = V(GS) = 3.6 V
220
503
m
Ilkg
N-channel leakage current
V(DS) = 6 V
7
10
μA
Forward current limit (P- and N-channel)
2.5 V < VINDCDC3 < 6 V
1.05
1.2
1.35
A
fS
Oscillator frequency
1.3
1.5
1.7
MHz
Fixed output voltage
VINDCDC3 = 2.5 V to 6 V;
–2%
2%
FPWMDCDC3=0
0 mA
≤ IO ≤ 600 mA
All VDCDC3
Fixed output voltage
VINDCDC3 = 2.5 V to 6 V;
–1%
1%
FPWMDCDC3=1
0 mA
≤ IO ≤ 600 mA
(1)
Typical values are at TA = 25°C
Copyright © 2005–2016, Texas Instruments Incorporated
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