RT8204BGQW Richtek USA Inc, RT8204BGQW Datasheet - Page 10

• Manufacturer Part Number: RT8204BGQW
• Description: IC SYNC BUCK W/LDO CTRLR 16WQFN
• Manufacturer: Richtek USA Inc

Specifications of RT8204BGQW

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
• Function: Any Function
• Number Of Outputs: 2
• Voltage/current - Output 1: Controller
• Voltage/current - Output 2: Controller
• W/led Driver: No
• W/supervisor: No
• W/sequencer: No
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

V
(100mV/Div)
OUT_ac-coupled
(50mV/Div)
RT8204B
www.richtek.com
10
V
(20V/Div)
(10A/Div)
(20V/Div)
Inductor
UGATE
Current
(5A/Div)
UGATE
OUT_ac
(5V/Div)
(2V/Div)
(5A/Div)
(1V/Div)
(5V/Div)
LGATE
LGATE
I
LDRI
I
V
LOAD
LOAD
OUT
VOUT1 Load Transient Response
V
LDO Load Transient Response
IN
= 1.25V, C
V
IN
= 12V, EN = Floating, I
Time (100μs/Div)
Time (10μs/Div)
Time (20μs/Div)
OUT
V
IN
= 10μF x 2, I
= 12V, EN = Floating, No Load
UVP
OUT2
OUT1
= 0.1A to 4A
= 0A to 6A
LPGOOD
(10A/Div)
(20V/Div)
(10V/Div)
(5V/Div)
UGATE
UGATE
(1V/Div)
(5V/Div)
(1V/Div)
(2V/Div)
(5V/Div)
(1V/Div)
(5V/Div)
LGATE
LGATE
I
LDRI
V
LOAD
V
V
LEN
OUT
OUT
OUT
Power On in Short Condition
LDO Power On from LEN
V
IN
V
IN
Time (800μs/Div)
Time (100μs/Div)
= 1.25V, C
Time (40μs/Div)
= 12V, EN = Floating, V
DS8204B-03 March 2011
OVP
V
IN
OUT
= 12V, EN = 5V, No Load
= 10μF x 2, No Load
OUT1
Short