OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

RT8070ZSP

P1-P3P4-P6P7-P9P10-P12
RT8070
4
DS8070-08 February 2015www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, VIN ---------------------------------------------------------------------------------------- −0.3V to 6V
LX Pin Switch Voltage --------------------------------------------------------------------------------------------- −0.3V to (V
IN
+ 0.3V)
<10ns ----------------------------------------------------------------------------------------------------------------- −5V to 8.5V
Other I/O Pin Voltages -------------------------------------------------------------------------------------------- −0.3V to (V
IN
+ 0.3V)
LX Pin Switch Current --------------------------------------------------------------------------------------------- 5A
Power Dissipation, P
D
@ T
A
= 25°C
SOP-8 (Exposed Pad) -------------------------------------------------------------------------------------------- 1.333W
WDFN-8L 3x3 ------------------------------------------------------------------------------------------------------- 1.429W
Package Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), θ
JA
--------------------------------------------------------------------------------------- 75°C/W
SOP-8 (Exposed Pad), θ
JC
-------------------------------------------------------------------------------------- 15°C/W
WDFN-8L 3x3, θ
JA
-------------------------------------------------------------------------------------------------- 70°C/W
WDFN-8L 3x3, θ
JC
-------------------------------------------------------------------------------------------------- 8.2°C/W
Junction Temperature ---------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.)------------------------------------------------------------------------ 260°C
Storage Temperature Range ------------------------------------------------------------------------------------- −65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model)--------------------------------------------------------------------------------------- 2kV
Electrical Characteristics
(V
IN
= 3.3V, T
A
= 25°C, unless otherwise specified)
Recommended Operating Conditions (Note 4)
Supply Input Voltage, VIN ---------------------------------------------------------------------------------------- 2.7V to 5.5V
Junction Temperature Range -------------------------------------------------------------------------------------
−40°C to 125°C
Ambient Temperature Range-------------------------------------------------------------------------------------
−40°C to 85°C
Parameter Symbol Test Conditions Min Typ Max Unit
Feedback Reference
Voltage
V
REF
0.784 0.8 0.816 V
Active, V
FB
= 0.78V, Not Switching -- 460 --
DC Bias Current
Shutdown -- -- 10
A
Output Voltage Line
Regulation
V
IN
= 2.7V to 5.5V -- 0.1 -- %/V
Output Voltage Load
Regulation
0A < I
LOAD
< 4A -- 0.25 -- %
Error Amplifier
Trans-conductance
gm -- 400 -- A/V
Current Sense
Trans-resistance
R
T
-- 0.3 --
RT8070
5
DS8070-08 February 2015 www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may
affect device reliability.
Note 2. θ
JA
is measured at T
A
= 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θ
JC
is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Parameter Symbol Test Conditions Min Typ Max Unit
R
OSC
= 300k 0.8 1 1.2
Switching Frequency
Switching 0.2 -- 2
MHz
Logic-High V
IH
1.6 -- --
EN Input
Voltage
Logic-Low V
IL
-- -- 0.4
V
Switch On-Resistance, High R
DS(ON)_P
I
LX
= 0.5A -- 110 180 m
Switch On-Resistance, Low R
DS(ON)_N
I
LX
= 0.5A -- 70 120 m
Peak Current Limit I
LIM
4.7 5.8 -- A
V
IN
Rising -- 2.4 --
Under Voltage Lockout
Threshold
V
IN
Falling -- 2.2 --
V
RT Shutdown Threshold V
RT
V
RT
Rising -- V
IN
0.7 V
IN
0.4 V
Soft-Start Period t
SS
C
SS
= 10nF -- 800 -- s
PGOOD Trip Threshold -- 87.5 -- %V
OUT
RT8070
6
DS8070-08 February 2015www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Typical Operating Characteristics
Switching Frequency vs. Temperature
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
1.04
-50 -25 0 25 50 75 100 125
Temperature (°C)
Switching Frequency (MHz) 1
V
IN
= 5V, V
OUT
= 1.1V, I
OUT
= 0.6A,
R
RT
= 330kΩ
Output Voltage vs. Output Current
1.070
1.075
1.080
1.085
1.090
1.095
1.100
1.105
1.110
1.115
1.120
1.125
1.130
0 0.5 1 1.5 2 2.5 3 3.5 4
Output Current (A)
Output Voltage (V)
V
IN
= 5V, V
OUT
= 1.1V, I
OUT
= 0A to 4A
Efficiency vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
00.511.522.533.54
Output Current (A)
Efficiency (%)
V
IN
= 5V, V
OUT
= 1.1V, I
OUT
= 0A to 4A
Reference Voltage vs. Temperature
0.76
0.77
0.78
0.79
0.80
0.81
0.82
0.83
0.84
-50-25 0 25 50 75100125
Temperature (°C)
Reference Voltage (V)
V
IN
= 5V, V
OUT
= 1.1V
V
IN
UVLO vs. Temperature
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
-50 -25 0 25 50 75 100 125
Temperature (°C)
V
IN
UVLO (V)
Rising
Falling
Enable Voltage vs. Temperature
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
-50 -25 0 25 50 75 100 125
Temperature (°C)
Enable Voltage (V)
Rising
Falling
P1-P3P4-P6P7-P9P10-P12

RT8070ZSP

Mfr. #:
Buy RT8070ZSP
Manufacturer:
Description:
IC REG BUCK ADJUSTABLE 4A 8SOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet