RT8009-12GB Richtek USA Inc, RT8009-12GB Datasheet - Page 5

• Manufacturer Part Number: RT8009-12GB
• Description: IC DCDC CONV STP-DN SYNC SOT23-5
• Manufacturer: Richtek USA Inc
• Type: Step-Down (Buck), PWMr

Specifications of RT8009-12GB

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.2V
• Current - Output: 600mA
• Frequency - Switching: 1.25MHz
• Voltage - Input: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-74A, SOT-753
• 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.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Note 5. V = I
DS8009-06 February 2011
Oscillator Frequency
Output Voltage
Accuracy
FB Input Current
R
R
P-Channel Current Limit
EN High-Level Input Voltage
EN Low-Level Input Voltage
Under Voltage Lockout Threshold
Hysteresis
Thermal Shutdown Temperature
Min. On Time
Max. Duty Cycle
LX Leakage Current
DS(ON)
DS(ON)
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 51-3 thermal measurement standard.
JA
of P-Channel MOSFET
of N-Channel MOSFET
is measured in the natural convection at T
OUT
x R
Parameter
DS(ON)_P
Adjustable
I
R
R
I
V
V
f
T
FB
LIM_P
OSC
Symbol
V
SD
EN_H
EN_L
DS(ON)_P
DS(ON)_N
OUT
V
V
0A < I
V
I
I
V
V
V
V
OUT
OUT
IN
IN
IN
IN
IN
IN
FB
= 3.6V, V
= 3.6V, I
= V
= 2.5V to 5.5 V
= 2.5V to 5.5V
= 2.5V to 5.5V
= V
= 200mA
= 200mA
OUT
A
OUT
IN
= 25 C on a low effective thermal conductivity test board of
Test Conditions
< 600mA
+ V to 5.5V
OUT
LX
= 0V or V
= 100mA
V
V
V
V
IN
IN
IN
IN
= 3.6V
= 2.5V
= 3.6V
= 2.5V
LX
(Note 5)
= 3.6V
Min
100
1.5
0.8
--
--
--
--
--
--
--
--
--
50
1
1
3
0.25
0.35
1.25
Typ
160
0.3
0.4
1.8
0.1
50
--
--
--
--
--
--
--
RT8009
www.richtek.com
Max
0.65
0.80
0.55
0.65
1.85
1.8
0.4
50
--
--
--
--
--
--
3
1
MHz
Unit
nA
ns
%
%
A
V
V
V
V
C
A
5