RT8023GQW Richtek USA Inc, RT8023GQW Datasheet - Page 7

• Manufacturer Part Number: RT8023GQW
• Description: IC CONV STP-DWN W/2 LDO 24WQFN
• Manufacturer: Richtek USA Inc

Specifications of RT8023GQW

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (2)
• Function: Any Function
• Number Of Outputs: 3
• Frequency - Switching: 1.2MHz
• Voltage/current - Output 1: 0.8 V ~ 5 V, 1.5A
• Voltage/current - Output 2: 0.8 V ~ 5 V, 700mA
• Voltage/current - Output 3: 0.8 V ~ 5 V, 350mA
• W/led Driver: No
• W/supervisor: No
• W/sequencer: Yes
• Voltage - Supply: 2.4 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
Note 2. θ
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. The power source for thermal shutdown circuit must be provided by V
DS8023-02 February 2011
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
EN3 Pin Current
Current Limit
Dropout Voltage
Load Regulation
Line Regulation
Power Supply Rejection Ratio,
f = 100kHz
FB3 Threshold for PGOOD
Transition
PGOOD3 Pull-Down Resistance
EN3 Input High
EN3 Input Low
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.
JEDEC 51-7 thermal measurement standard. The case point of θ
then the LDO2 can provide the thermal shutdown function.
JA
is measured in the natural convection at T
Parameter
I
V
ΔV
ΔV
I
I
V
ΔV
ΔV
PSRR
Symbol
LIM
EN3
LIM
DROP
DROP
LOAD
LINE
LOAD
LINE
R
I
1mA < I
V
V
I
Measured EN leakage current.
EN3 = 5.5V
R
I
1mA < I
V
V
I
I
OUT3
OUT3
OUT3
OUT3
OUT3
A
IN3
IN3
IN3
IN3
LOAD
LOAD
= 25°C on a high effective four layers thermal conductivity test board of
> 2.7V
= (V
> 2.7V
= (V
= 250mA, V
= 1mA
= 250mA, V
= 1mA
= 150mA
= 0Ω
= 0Ω
OUT3
OUT3
Test Conditions
OUT3
OUT3
< 250mA,
< 250mA,
+ 0.5) to 5.5V
+ 0.5) to 5.5V
IN3
IN3
JC
> 2.7V
> 2.7V
is on the expose pad of the package.
IN1
. There must be a power input into LDO1 and
0.35
0.35
Min
1.4
--
--
--
--
--
--
--
--
--
--
--
0.48
0.01
0.48
0.01
0.72
Typ
250
250
0.1
40
--
--
--
1
1
RT8023
www.richtek.com
Max
0.76
400
400
120
0.6
0.2
0.6
0.2
0.4
--
--
--
--
1
Unit
%/V
%/V
mV
mV
μA
dB
%
%
Ω
A
A
V
V
V
7