tb7109f TOSHIBA Semiconductor CORPORATION, tb7109f Datasheet - Page 4

• Manufacturer Part Number: tb7109f
• Description: Power Supply Ic For Lnb
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Electrical Characteristics
Operating input voltage
Operating current
Standby current
EN threshold voltage
EN input current
Thermal
shutdown (TSD)
Undervoltage
lockout (UVLO)
Internal soft-start time
Reference voltage
DC-DC Converter section
V
V
Output voltage range
High-side switch leakage current
High-side switch on-state resistance
Low-side switch on-state resistance
Oscillation frequency
High-side switch duty cycle
L
Series Regulator section
Dropout voltage
V
V
Load regulation
V
X
FB
FB
FB
FB
OUT2
current limit
input voltage
input current
input voltage
input current
current limit
Characteristics
Detection
temperature
Hysteresis
Detection
voltage
Recovery
voltage
Hysteresis
(T
j
V
V
Reg・Load
R DS(ON)(H)
R DS(ON)(L)
V
I
= 25°C, V
IN2
OUT1(OPR)
IN1(STBY)
I
LEAK (H)
Symbol
V
V
I
I
IN1(OPR)
I
I
LIM2(1)
LIM2(2)
V
ΔV
Dmax
IH(EN)
ΔT
V
IL(EN)
V
I
V
f
IH(EN)
IL(EN)
T
V
I
I
LIM1
I
OSC
–V
t
FB1
FB2
IN1
UVR
REF
SS
FB1
FB2
SD
UV
SD
UV
OUT2
V
V
V
V
V
V
V
V
V
V
V
V
V
V
Measured between 0% and 90%
points at V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
I
V
V
V
V
IN1
OUT2
IN1
FB1
IN1
FB1
IN1
IN1
IN1
IN1
IN1
IN1
EN
EN
EN
IN1
IN1
IN1
IN1
EN
IN1
FB1
IN1
IN1
IN1
IN1
IN1
OUT1
OUT2
IN1
IN1
FB2
IN1
IN1
FB2
IN1
FB2
=24V, V
= 5V
= 5V
= 5V
= V
= V
= 24V , V
= 24V , V
= 24V
= 24V
= 24V, V
= 24V, V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V, V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 24V , V
= 0.8V
= 0V, V
= 2V, V
= 1V , V
= 0V , V
= 2V
= 5mA to 400mA
= 17V
= 15V , I
IN1
4
IN2
Test Condition
OUT1
IN2
LX
EN
OUT2
OUT2
EN
EN
EN
EN
EN
IN2
IN2
IN2
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
= 8V to 27V, unless otherwise specified)
OUT2
=17V, V
= 0V
= 5V
⎯
= 0V
= 5V
= 0V
= 5V, I
= 5V
= 5V, V
= 5V, I
= 5V, I
= 5V
= 5V
= 5V
= 0V
= 5V
= 5V
= 5V
= 5V
= 5V
= 17V
= 17V
= 17V
= 0V
= 12.5V
= 400mA
OUT2
OUT1
LX
LX
FB1
= - 0.1A
= 0.1A
=15V
= 2V
= 0A
1.215
1.18
0.75
Min
320
400
1.8
4.6
5.3
1.2
⎯
⎯
⎯
−5
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
-1
-5
8
1.215
1.215
1.215
Typ.
−15
155
400
550
100
5.3
6.0
0.7
2.5
0.7
0.9
10
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
5
V
1.25
Max
480
100
150
IN1
0.5
6.0
6.7
27
70
10
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
-5
2011-05-19
5
5
4
1
1
TB7109F
-3
Unit
kHz
mA
mV
mA
mA
μA
μA
ms
μA
μA
μA
°C
°C
%
V
V
V
V
V
V
V
V
Ω
Ω
A
V
V