Datasheet
TD1410
2A 380KHZ 20V PWM Buck DC/DC Converter
Recommended Operating Conditions
Parameter
Symbol
VIN
Min.
3.6
Max.
20
Unit
V
Input Voltage
Operating Junction Temperature
Operating Ambient Temperature
TJ
-40
125
85
ºC
TA
-40
ºC
Electrical Characteristics
VCC = 12V, Ta = 25℃ unless otherwise specified.
Parameters
Input voltage
Symbol
VIN
Test Condition
Min. Typ. Max. Unit
3.6
20
90
4
V
uA
mA
V
Shutdown Supply Current
Quiescent Supply Current
Feedback Voltage
ISTBY
VEN=0V
30
ICC
VFB
IFB
VEN=2V, VFB=1.3V
VIN = 3.6V to 23V
VFB=1.3V
3.6
1.21 1.235 1.26
Feedback Bias Current
Switch Current Limit
0.1
3
0.5
4
uA
A
ILIM
Oscillator Frequency
FOSC
FOSC1
VEN
320
0.7
380
42
440 KHz
KHz
Frequency of Current
Limit or Short Circuit
Protection
VFB=0V
EN Pin Threshold
1.2
1.7
V
IH
IL
VEN=2.5V
VEN=0.5V
-0.1
-3
-1
uA
uA
EN Pin Input Leakage
Current
-10
VIN =12V, VFB=0V
VEN=12V, Iout=2A
Internal PMOS RDSON
Max. Duty Cycle
RDSON
DMAX
140
100
mΩ
VFB=0V, ISW=0.1A
%
VIN=12V ,Vout=5V
Iout=2A
Efficiency
η
-
92
-
%
Thermal Shutdown
TOTSD
165
ºC
September, 2006
4
ETC [ ETC ]
