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PDF XC9119D10A Data sheet ( Hoja de datos )
| Número de pieza | XC9119D10A | |
| Descripción | Step-Up DC/DC Converter / Ceramic Capacitor Compatible | |
| Fabricantes | Torex Semiconductor | |
| Logotipo |  |
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◆Operating Voltage Range : 2.5V ~ 6.0V
■APPLICATIONS
◆Output Voltage Externally Set-Up
: Vref =1.0V ± 2.0%
(Can be set freely up to 19.5V)
●Organic electroluminescene display (OELD)
●Power supplies for LCD panels
◆Oscillation Frequency
●Various general-purpose power supplies
: 1.0MHz (Accuracy ± 20%)
◆High Efficiency : 86%
(VDD=3.6V, VOUT=15V, IOUT=10mA)
◆Ultra Small Packages
: SOT-25, USP-6C
■GENERAL DESCRIPTION
The XC9119D01A series is 1MHz, PWM controlled step-up
DC/DC converter, designed to allow the use of ceramic
capacitors. With a built-in 2.0Ω switching transistor, the
XC9119D01A series can easily provide a step-up operation
by using only a coil, a diode, a capacitor, and a resistor,
connected externally.
Since output voltage up to 19.5V (Maximum Lx operating
voltage: 20V) can be derived with reference voltage supply of
1.0V (±2.0%) and external components, the series can easily
supply high voltage for various general-purpose power
supplies, LCD panels and organic EL displays.
With a high switching frequency of 1.0MHz, a low profile and
small board area solution can be achieved using a chip coil
and an ultra small ceramic output capacitor.
With the current limit function (400mA (TYP.): VDD=3.6V), a
peak current, which flows through built-in driver transistors
can be limited. Soft-start time can be adjusted by external
resistors and capacitors. The stand-by function enables the
output to be turned off (CE ’L’), that is, the supply current will
be less than 1.0µA.
■TYPICAL APPLICATION CIRCUIT
■FEATURES
Operating Voltage Range: 2.5V ~ 6.0V
Output Voltage Range : Up to 19.5V externally set-up
: Reference voltage 1.0V +2.0%
Oscillation Frequency : 1.0MHz±20%
ON Resistance
: 2.0Ω (VDD: 3.6V, VDS: 0.4V)
Efficiency
: 86%
(VOUT=15V, VDD=3.6V, IOUT=10mA)
Control
: PWM control
Stand-by function
: ISTB=1.0µA (MAX.)
Load Capacitor
: Low ESR cap. such as a
ceramic capacitor compatible
Lx Limit Current
: 400mA (VDD:3.6V)
■TYPICAL PERFORMANCE
CHARACTERISTICS
○Efficiency vs. Output Current
XC9119D10A
L:22uH
SD
CDRH4D18C XB01SB04A2BR
VIN
RSS
220kΩ
C IN
4.7uF
C SS
0.1uF
VDD
Lx
CE/SS
V SS
FB
RFB1
510kΩ
RFB2
36kΩ
VOUT=15V
(up to 19.5V)
C FB
620pF
CL
10uF
XC9119D10A ETR0408_003
100
90
80
70
60
50
40
30
20
10
0
0.1
6V
5V
4.2V
VIN=2.5V
3.6V
2.7V 3V
T a =2 5 oC
1 10 100
Output Current: IOUT (mA)
1000
1
1 page  
■BLOCK DIAGRAM
XC9119D10A
Series
V DD
FB
CE/SS
Phase
Compensation
Error Amp.
+
-
Vref with
Soft-start,
CE
+
-
Ramp Wave
Generator, OSC
PWM Comparator
Current
Limit & Feedback
logic
Buffer
Driver
LX
VSS
■ABSOLUTE MAXIMUM RATINGS
PARAMETER
VDD Pin Voltage
Lx Pin Voltage
FB Pin Voltage
CE Pin Voltage
Lx Pin Current
Power Dissipation
SOT-25
USP-6C
Operating Temperature Range
Storage Temperature Range
SYMBOL
VDD
VLx
VFB
VCE
ILx
Pd
Topr
Tstg
RATINGS
VSS – 0.3 ~ 7.0
VSS – 0.3 ~ 22.0
VSS – 0.3 ~ 7.0
VSS – 0.3 ~ 7.0
1000
250
100
- 40 ~ + 85
- 55 ~ +125
Ta = 25OC
UNITS
V
V
V
V
mA
mW
OC
OC
5
5 Page 
XC9119D10A
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Output Voltage vs. Output Current
V I N= V DD= V CE , L = 4 . 7 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
5.3 CFB=1000pF(Ceram ic),RFB1=300kΩ ,RFB2=75kΩ
T a=25oC
5.2
4.5V
3V
5.1
5.0
4.9 VIN=2.5V
4.8
4.7
0.1
1 10 100
Output Current: IOUT (m A)
1000
16.0
V I N= V DD= V CE , L = 2 2 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
CFB=620pF(Ceram ic),RFB1=510kΩ ,RFB2=36kΩ
15.5
VIN=5V
15.0
14.5
14.0
0.1
VIN=2.5V,3V
VIN=6V
T a=25oC
1 10 100
Output Current IOUT (mA)
1000
(2) Efficiency vs. Output Current
VO UT= 5V
V I N= V DD= V CE , L = 4 . 7 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
100 CFB=1000pF(Ceram ic),RFB1=300kΩ ,RFB2=75kΩ
90 4.5V
80
70 4.2V
60 3.6V
VIN=2.5V
50
40 2.7V 3V
30
20
10 T a=25oC
0
0.1 1 10 100 1000
Output Current: IOUT (mA)
V I N= V DD= V CE , L = 2 2 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
11.0 CFB=1200pF(Ceram ic),RFB1=270kΩ ,RFB2=30kΩ
T a=25oC
10.5
VIN=3V VIN=5V
10.0
9.5
VIN=2.5V
VIN=6V
9.0
0.1
1 10 100
Output Current: IOUT (mA)
1000
19.0
V I N= V DD= V CE , L = 2 2 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
CFB=620pF(Ceram ic),RFB1=510kΩ ,RFB2=30kΩ
18.5
VIN=5V
18.0
17.5
VIN=2.5V,3V
VIN=6V
T a=25oC
17.0
0.1 1 10 100 1000
Output Current: IOUT (mA)
VO UT= 10V
V I N= V DD= V CE , L = 2 2 u H(CDRH4 D1 8 C)
SD:XB01B04ABR,CIN=CL=4.7uF(Ceram ic)
100 CFB=1200pF(Ceram ic),RFB1=270kΩ ,RFB2=30kΩ
90 6V
80 5V
70 4.2V
60
VIN=2.5V
3.6V
50 2.7V
40 3V
30
20
10 T a=25oC
0
0.1 1 10 100 1000
Output Current: IOUT (mA)
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet XC9119D10A.PDF ] | |
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