RT9259AGS Richtek USA Inc, RT9259AGS Datasheet - Page 8

• Manufacturer Part Number: RT9259AGS
• Description: IC CTRLR PWM SYNC BUCK 14SOP
• Manufacturer: Richtek USA Inc

Specifications of RT9259AGS

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
• Function: Any Function
• Number Of Outputs: 2
• Frequency - Switching: 300kHz
• Voltage/current - Output 1: Controller
• Voltage/current - Output 2: Controller
• W/led Driver: No
• W/supervisor: No
• W/sequencer: No
• Voltage - Supply: 10.8 V ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(100mV/Div)
(500mV/Div)
RT9259A
www.richtek.com
8
(2.5A/Div)
(2mV/Div)
(20V/Div)
(10A/Div)
(0.5A/Div)
UGATE
V
I
I
V
L
LDO
LOAD
V
I
L
OUT1
OUT1
OUT2
Transient Response
Transient Response
Time (100μs/Div)
Time (2.5μs/Div)
Time (1ms/Div)
Start Up
V
I
LOAD
V
I
IN2
LOAD1
IN1
= 12V, V
= 12V, V
= 1A to 100mA
= 1A to 20A
OUT2
OUT1
No Load
= 2.5V
= 2V
(500mV/Div)
(500mV/Div)
(100mV/Div)
(500mV/Div)
(20V/Div)
(10V/Div)
(20V/Div)
(10A/Div)
(1V/Div)
I
RT_Dis
V
V
I
LDO
LGATE
UGATE
COMP
V
Load
LOAD1
OUT1
IN1
OUT2
= 20A
= 12V, V
= 20A to 1A
Under Voltage Protection
Transient Response
OUT1
Time (10ms/Div)
Time (10μs/Div)
Time (1ms/Div)
= 2V
Start Up
DS9259A-02 March 2007
V
IN2
UGATE
V
= 0V
OUT
I
L