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PDF RT2070 Data sheet ( Hoja de datos )
| Número de pieza | RT2070 | |
| Descripción | 3 Channel DC/DC Converters +LDO +LSW PMIC | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT2070 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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®
RT2070
3 Channel DC/DC Converters +LDO +LSW PMIC with I2C
Interface for Industrial/Automotive Application
General Description
The RT2070 is a highly-integrated low-power high-
performance analog SOC with PMIC (Power Management
IC) in one single chip designed for Industrial/Automotive
applications.
The RT2070 PMIC includes one high voltage synchronous
step-down DC/DC converter, two low voltage synchronous
step-down DC/DC converters, one low dropout LDO and
one load switch with soft-start control and current limit.
All MOSFETs are integrated, and compensation networks
are built-in.
The RT2070 also uses I2C interface to set timing of power
on/off, sequence and discharge function, and includes
power good indicator (PGOOD).
The RT2070 is an Automotive-Grade Product that is
AEC-Q100 Grade 1 Qualified and provides fault condition
protections, including over-current protection, under-
voltage lockout, over-voltage protection and over-
temperature protection.
Applications
Industrial/Automotive Camera Module
Car Infotainment
Features
Input Voltage Operating Range is 4.5V to 15V
CH1 HV-Step-Down Regulator : VIN Range is 4.5V
to 15V
Support up to 2A Loading with up to 90%
Efficiency
Switching Frequency is 2MHz
CH2/3 LV Step-Down Regulator : VIN Range is 2.7V
to 5.5V
Support up to 1A Loading, with up to 90%
Efficiency
Switching Frequency is 2MHz
Linear Regulator : VIN Range is 2.7V to 5.5V
Max Loading 0.5A
Load Switch (LSW) : VIN Range is 2.7V to 5.5V
Max Loading 0.5A
Sequence Can be Controlled by Setting the
Resistances of the SEQ Pin
AEC-Q100 Grade 1 Qualified
Marking Information
2R= : Product Code
2R=YM
DNN
YMDNN : Date Code
Simplified Application Circuit
Input Power
VIN
VDDA
VOUT1
RT2070
VOUT1
LDO for Sensor
LX1
FB1
VOUT1S
PVD4
SWI
SWO
PVD2
LX2
VOUT4
FB4
FB2
PVD3
SCL
SDA
LX3
FB3
PGOOD
ENA
SEQ
GND
VOUT1
Load SW for Core
Step Down
for I/F
Step Down
for Logic
VOUT1
VOUT1
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS2070-00 March 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1
1 page  
RT2070
Absolute Maximum Ratings (Note 1)
Analog Base Input Voltage, VIN ---------------------------------------------------------------------------------------- −0.3V to 20V
Control Output Voltage, PGOOD -------------------------------------------------------------------------------------- −0.3V to 6V
Control Input Voltage, ENA --------------------------------------------------------------------------------------------- −0.3V to 15V
HV Buck Power Switch (DC), LX1 ------------------------------------------------------------------------------------- −0.3V to 15V
LV Buck Input Voltage, PVD2/3 ---------------------------------------------------------------------------------------- −0.3V to 6V
LV Buck Power Switch (DC), LX2, LX3 ------------------------------------------------------------------------------- −0.3V to 6V
LV Buck Power Switch (Spike Voltage <200ns), LX2, LX3 ------------------------------------------------------ −0.3V to 6V
Other Pins ------------------------------------------------------------------------------------------------------------------- −0.3V to 6V
Power Dissipation, PD @ TA = 25°C
WQFN-24L 4x4 ------------------------------------------------------------------------------------------------------------ 4.46W
Package Thermal Resistance (Note 2) (Note 3)
WQFN-24L 4x4, θJA ------------------------------------------------------------------------------------------------------- 28°C/W
WQFN-24L 4x4, θJC ------------------------------------------------------------------------------------------------------ 7°C/W
Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 4)
HBM (Human Body Model) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Model) ----------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 5)
Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 150°C
Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
Electrical Characteristics
(VIN = 4.5V to 15V, TA = −40°C to 125°C, unless otherwise specified)
Parameter
VIN Operation Voltage
Range
Quiescent Current
Symbol
Test Conditions
IQ
IQ_PSM
VIN = 5V, LDOs, Bucks are ON with
no load, LVBucks are in FCCM
mode.
VIN = 5V, LDOs, Bucks are ON with
no load, LVBucks are in PSM
mode.
Shutdown Current
ISHD
VIN = 5V, ENA = 0V, LDOs, Bucks
are OFF.
Over-Temperature Protection OTP
OTP Hysteresis (Note 6) OTP_HYS
VIN OVP (Hysteresis High)
VIN OVP Hysteresis (Gap)
(Note 7)
OVP
OVP_HYS
Min
4.5
8
600
2
150
10
15
1.5
Typ Max
-- 15
10 12
1000 1200
7 20
160
20
15.5
2
170
30
16
2.5
Unit
V
mA
A
A
C
C
V
V
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS2070-00 March 2016
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
5
5 Page 
Typical Operating Characteristics
CH1 HV Buck Efficiency vs. Output Current
100
90
80
70
60
50 VIN = 5V
VIN = 6V
40 VIN = 9V
30
VIN = 10V
VIN = 12V
20 VIN = 15V
10
0
10
VOUT = 3.3V, L = 4.7μH, COUT = 10μF x 2
100 1000
Output Current (mA)
10000
CH3 Buck Efficiency vs. Output Current
100
90
80
70
60 VIN = 2.7V
50
VIN = 3.3V
VIN = 3.6V
40 VIN = 4.2V
VIN = 5V
30 VIN = 5.5V
20
10
0
10
VOUT = 1.2V, L = 2.2μH, COUT = 10μF x 2, FPWM
100
Output Current (mA)
1000
CH2 Buck Output Voltage vs. Output Current
1.820
1.818
1.816
1.814
1.812
1.810
VIN = 2.7V
VIN = 3.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
0 200
L = 2.2μH, COUT = 10μF x 2
400 600 800
Output Current (mA)
1000
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS2070-00 March 2016
RT2070
CH2 Buck Efficiency vs. Output Current
100
90
80
VIN = 2.7V
70 VIN = 3.3V
60
VIN = 3.6V
VIN = 4.2V
50 VIN = 5V
40 VIN = 5.5V
30
20
10
0
10
VOUT = 1.8V, L = 2.2μH, COUT = 10μF x 2, FPWM
100
Output Current (mA)
1000
CH1 HV Buck Output Voltage vs. Output Current
3.36
3.35
3.34
3.33
VIN = 5V
VIN = 6V
VIN = 9V
VIN = 10V
VIN = 12V
VIN = 15V
3.32
3.31
3.30
0
L = 4.7μH, COUT = 10μF x 2
0.5 1 1.5
Load Current (A)
2
CH3 Buck Output Voltage vs. Output Current
1.210
1.208
1.206
1.204
1.202
1.200
1.198
1.196
1.194
0
VIN = 2.7V
VIN = 3.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5V
VIN = 5.5V
L = 2.2μH, COUT = 10μF x 2
200 400 600 800
Output Current (mA)
1000
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet RT2070.PDF ] | |
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