RT8023GQW Richtek USA Inc, RT8023GQW Datasheet - Page 12

• 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

(500mV/Div)
(50uV/Div)
RT8023
www.richtek.com
12
(0.5A/Div)
V
V
(5V/Div)
OUT2
OUT2
I
V
IN2
EN2
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0.01
10
V
V
IN2
IN2
= 4.5V, V
= 5V, V
100
LDO1 Power On from EN2
0.1
I
I
OUT
OUT
OUT2
OUT2
= 300mA
= 10mA
Time (10ms/Div)
= 1.2V, I
Time (10μs/Div)
Frequency (Hz)
V
LDO1 Noise
LDO1 PSRR
1000
= 1.5V, I
IN2
1
= 2.5V to 2.6V, V
OUT2
OUT2
10000
10
= 0.3A
(kHz)
= 300mA
100000
100
OUT2
= 1.5V
1000000
1000
(500mV/Div)
(50uV/Div)
(0.5A/Div)
V
V
(5V/Div)
OUT3
OUT3
I
V
IN3
EN3
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0.01
10
LDO1 V
LDO2 V
V
V
IN3
IN3
= 4.5V, V
= 5V, V
IN2
OUT3
100
LDO2 Power On from EN3
0.1
= 2.5V to 2.6V
OUT3
= 1.5V
OUT3
Time (10ms/Div)
Frequency (Hz)
= 1.2V, I
Time (10μs/Div)
LDO2 Noise
1000
Crosstalk
= 1.5V, I
1
DS8023-02 February 2011
V
IN2
OUT3
OUT3
10000
to V
10
(kHz)
= 0.3A
= 300mA
OUT3
, I
100000
OUT3
100
= 10mA
1000000
1000