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PDF RT8036 Data sheet ( Hoja de datos )
| Número de pieza | RT8036 | |
| Descripción | One Step Down DC/DC Converter and Four Linear Regulators | |
| Fabricantes | Richtek | |
| Logotipo |  |
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RT8036
One Step Down DC/DC Converter and Four Linear
Regulators with Individual On/Off Control
General Description
The RT8036 is an integrated power management unit which
integrates one 600mA high efficiency step down DC/DC
converter and four low dropout voltage regulators with
300mA current capability for each regulator.
The RT8036 is optimized for sub block power requirement
solution. The individual on/off control for each device can
provide flexibility for different power on sequence. Four
linear regulators provide high PSRR output and are suitable
for both analog and digital power.
The RT8036 is available in the WQFN-20L 3x3 package
that is suitable for portable device.
Ordering Information
RT8036
Package Type
QW : WQFN-20L 3x3 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage :
A : Buck : 1V
LDO1/2/3/4 : 1V/2.6V/3V/3.3V
B : Buck : 1.2V
LDO1/2/3/4 : 1.8V/2.8V/2.8V/2.8V
C : Buck : 1.3V
LDO1/2/3/4 : 1.8V/2.8V/2.8V/2.8V
D : Buck : 1.3V
LDO1/2/3/4 : 1.8V/2.8V/2.8V/3.0V
E : Buck : 1.3V
LDO1/2/3/4 : 1.8V/2.8V/2.8V/3.3V
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Features
z Four Low Noise LDOs for Up to 300mA
z One High Efficiency Synchronous Buck Up to 600mA
Output
z Individual On/Off Control for Each Output
z Small 20-Lead WQFN Package
z RoHS Compliant and Halogen Free
Applications
z Smart Handheld device
z Cellular phone
Pin Configurations
(TOP VIEW)
VINL1
ENL1
ENL2
VINB
LX
20 19 18 17 16
1 15 VOUTL3
2 14 VOUTL4
3
GND
13 AGND
4 21 12 ENL4
5 11 ENL3
6 7 8 9 10
WQFN-20L 3x3
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
DS8036-02 April 2011
www.richtek.com
1
1 page  
RT8036
Parameter
Under Voltage Lockout
Hysteres is
Oscillator Frequency
Thermal Shutdown
Temperature
Maximal Duty Cycle
LX Leakage Current
Symbol
Test Conditions
UVLO_Hys
fOSC
VINB = 3.6V, IOUTB = 100mA
TSDB
VINB = 3.6V, VLX = 0V or VLX = 3.6V
LDO
LDO Input Voltage
Quiescent Current
Shutdown Current
Dropout Voltage
(Note 5)
VOUTL Accuracy
Line Regulation
Load Regulation
Current Limit
ENL Threshold
Output Voltage TC
VOUTL Discharge
Resistance in Shutdown
Thermal Shutdown
Thermal Shutdown
Hysteres is
IQL
IQL _SD
VDROP
ΔV
ΔVL INE
ΔVL OA D
ILIM
VIHL
VILL
TSDL
ΔTSDL
PSRR
VINL = VOUTL + 1V
COUTL = 2.2μF
ILOAD = 50mA
PSRR
VINL = 2.5V to 5.5V
VENL > 1.5V
VENL < 0.4V
IOUTL = 300mA
IOUTL = 1mA
VIN = 2.5V to 5.5V
1mA < IOUTL < 300mA
RLOAD = 1Ω
VINL = 2.5V to 5.5V, Power On
VINL = 2.5V to 5.5V, Shutdown
VIN = 5V, EN1 = EN2 = GND
f = 100Hz, ILOAD = 10mA
f = 1kHz, ILOAD = 10mA
f = 10kHz, ILOAD = 10mA
f = 100Hz, ILOAD = 150mA
f = 1kHz, ILOAD = 150mA
f = 10kHz, ILOAD = 150mA
Min
0.05
--
--
100
1
2.5
--
--
--
−3
0
0
330
1.5
--
--
--
--
--
--
--
--
--
--
--
Typ Max Unit
0.1 0.35
V
1.5 -- MHz
160 --
°C
-- -- %
-- 100 μA
--
50
0.1
330
--
0.02
0.1
430
--
--
100
20
170
30
65
60
50
65
50
50
5.5 V
80 μA
0.8 μA
500 mV
3%
0.2 %/V
0.6 %
600 mA
-- V
0.4 V
-- ppm/°C
-- Ω
-- °C
-- °C
--
--
-- dB
--
--
--
Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. 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 for extended
periods may remain possibility to affect device reliability.
Note 2. θJA is measured in the natural convection at TA = 25°C on a high effective four layers thermal conductivity test board of
JEDEC 51-7 thermal measurement standard. The case point of θJC is on the expose 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.
Note 5. ΔV = IOUT x RDS(ON)_P
DS8036-02 April 2011
www.richtek.com
5
5 Page 
RT8036
Line Transient Response
VINL1 4.8
(V) 3.8
VINL1 4.8
(V) 3.8
VOUTL1
(20mV/Div)
VOUTL2
(20mV/Div)
VOUTL1
(10mV/Div)
VOUTL2
(10mV/Div)
VOUTL1 = 1.8V, VOUTL2 = 2.8V, IOUTL1 = IOUTL2 = 50mA
Time (100μs/Div)
Line Transient Response
VOUTL1 = 1.8V, VOUTL2 = 2.8V,
IOUTL1 = IOUTL2 = 100mA
Time (100μs/Div)
IOUT
(50mA/Div)
VOUTL1
(20mV/Div)
VOUTL2
(20mV/Div)
ENL1
(5V/Div)
VOUTL1
(1V/Div)
VOUTL2
(1V/Div)
Load Transient Response
VINL1 = 4.3V, VOUTL1 = 1.8V, VOUTL2 = 2.8V
IOUT
(100mA/Div)
IOUTL1 = IOUTL2 = 10mA to 50mA
Time (250μs/Div)
VOUTL1
(20mV/Div)
VOUTL 2
(20mV/Div)
Power On from ENL1
VINL1 = 5V, VOUTL1 = 1.8V, VOUTL2 = 2.8V,
IOUTL1 = IOUTL2 = 50mA
ENL1
(5V/Div)
Time (25μs/Div)
VOUTL1
(1V/Div)
VOUTL2
(1V/Div)
Load Transient Response
VINL1 = 4.3V, VOUTL1 = 1.8V, VOUTL2 = 2.8V
IOUTL1 = IOUTL2 = 10mA to 100mA
Time (250μs/Div)
Power Off from ENL1
VINL1 = 5V, VOUTL1 = 1.8V,
VOUTL2 = 2.8V,
IOUTL1 = IOUTL2 = 50mA
Time (25μs/Div)
DS8036-02 April 2011
www.richtek.com
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet RT8036.PDF ] | |
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