A-POWER APE1913

Advanced Power
Electronics Corp.
APE1913
1.2MHz, HIGH VOLTAGE, BOOST CONVERTER
FEATURES
DESCRIPTION
Input Voltage:2.6V to 5.5V
Adjustable Output Voltage Range up to 27V
1.2MHz Fixed Switching Frequency
Internal Soft-Start Function
Current Limit and Thermal Shutdown Protection
Under Voltage Lockout
< 1µA Shutdown Current
Available in the TSOT-23-5L Package
The APE1913 is a current mode step up
converter intended for small, low power
applications. The converter input voltage ranging
from 2.6V to 5.5V. The Output voltage can be set
up to 27V. The frequency is 1.2MHz allows the use
of small external inductors and capacitors and
provides fast transient response. Internal soft start
results in small inrush current and extends battery
life. Internal power MOSFET with very low RDS
(ON) provides high efficiency. The APE1913
automatically transits from PWM to PFM during
light load condition further increasing efficiency.
The converter also provides protection functions
such as under-voltage lockout, current limit and
thermal shutdown. The APE1913 is available in
TSOT-23-5L package.
TYPICAL APPLICATION
VIN=5V
ON
R4
1M
C1
10uF
D1
B240A
L1
4.7uH
APE1913
U1
VCC
EN
R2
470K
SW
FB
GND
OFF
VOUT=12V
R3
C3
C2
4.7uF
R1
54K
1nF
R2
VOUT = 1.238V X (1 + ------- )
R1
R2 Suggest 390K~820K
VIN
VOUT
R3
2.6~3.6V
5V
120KΩ
2.6~5.3V
7V
82KΩ
2.6~5.5V
7.5~27V
0Ω
PACKAGE & ORDERING INFORMATION
(Top View)
APE1913X
Package Type
TY5 : TSOT-23-5L
SW
1
GND
2
FB
3
5
VCC
4
EN
TSOT-23-5L
Data and specifications subject to change without notice
1
201203211
Advanced Power
Electronics Corp.
APE1913
ABSOLUTE MAXIMUM RATINGS
VCC Pin Voltage (VCC) ------------------------------------ GND - 0.3V to GND + 6.5V
Feedback Pin Voltage (VFB) ----------------------------- GND - 0.3 to VCC + 0.3
EN Pin Voltage (VEN) -------------------------------------- GND - 0.3 to VCC + 0.3
Switch Pin Voltage (VSW) --------------------------------- 30V
Power Dissipation (PD) ----------------------------------- ( TJ-TA ) / Rthja W
Storage Temperature Range (T ST) -------------------- -40°C to +150°C
Operating Junction Temperature Range (T OP) ----- -40°C to +125°C
Thermal Resistance from Junction to Case(Rth JC)
110°C/W
Thermal Resistance from Junction to Ambient(RthJA)
250°C/W
Note. Rthja is measured with the PCB copper area of approximately 1 in2(Multi-layer).
ELECTRICAL SPECIFICATIONS
(VCC=5V, VOUT=12V, TA=25°C, unless otherwise specified)
Parameter
SYM
Input Voltage Range
VCC
Under Voltage Lockout
UVLO
TEST CONDITION
Rising
UVLO Hysteresis
MIN
TYP
MAX
UNITS
2.6
-
5.5
V
-
2.35
2.6
V
-
-130
-
mV
3
-
27
V
Step-Up Voltage Adjust Range
VOUT
Operating Quiescent Current
ICCQ
IOUT= 0mA, VFB =1.5V
-
150
250
μA
Shutdown Current
ISD
VEN=0V
-
0.1
1
μA
Feedback Voltage
VFB
FB Input Leakage Current
IFB-LKG
VFB = 1.3V
1.213
1.238 1.263
V
-100
0.01
100
nA
Line Regulation
VIN = 2.5 to 5.5V, IOUT = 20mA
-
0.2
-
%
Load Regulation
VIN = 5V, IOUT = 1mA to 400mA
-
0.2
-
%
Switching Frequency
FOSC
900
1200
1500
KHz
Maximum Duty
DMAX
82
87
-
%
Duty=50%
-
1.9
-
A
VCC=3V, ISW=1A
-
650
-
VCC=5V, ISW=1A
-
500
-
VLX = 27V, VFB =1.5V
-
-
1
µA
1
-
-
V
N-channel MOSFET Current Limit
MOSFET On-resistance (Note1)
ILIM
RDS(on)
SW Leakage Current
ISWL
EN High-level Input Voltage
VIH
mΩ
EN Low-level Input Voltage
VIL
-
-
0.4
V
EN Hysteresis
Hys
-
200
-
mV
-
0.01
0.1
μA
EN Input Leakage Current
IEN-LKG
VEN=GND or VCC
Thermal Shutdown
TDS
-
150
-
Thermal Shutdown Hysteresis
TSH
-
35
-
°C
Note1: Guaranteed by design.
2
Advanced Power
Electronics Corp.
APE1913
PIN DESCRIPTIONS
PIN SYMBOL
VCC
PIN DESCRIPITON
Input Supply Pin. Must be locally bypassed.
Power Switch Output. SW is the drain of the internal MOSFET switch. Connect
the power inductor and output rectifier to SW.
SW
SW can swing between GND and 27V.
Feedback Input. FB voltage is 1.238V. Connect a resistor divider to FB.
FB
Regulator On/Off Control Input. A high input at EN turns on the converter, and a
low input turns it off. When not used, connect EN to the input source for automatic
EN
startup. The EN pin cannot be left floating.
Ground pin
GND
BLOCK DIAGRAM
EN
VCC
UVLO
Soft
Start
Vref
1.238V
Enable/
Disable
Thermal
Shutdown
Summing
Comparator
FB
Error
Amplifier
SW
Control and
Driver Logic
N-MOS
Oscillator
1.2MHz
Slope
Compensation
Current
Sense
GND
3
Advanced Power
Electronics Corp.
APE1913
APPLICATION DESCRIPTION
Setting the Output Voltage
Application circuit item shows the basic application circuit with APE1913
adjustable output version. The external resistor sets the output voltage according to the
following equation:
R2
VOUT = 1.238V × (1+
)
R1
For most applications, R2 is a suggested a value by 390K~820K Ω . Place the
resistor-divider as close to the IC as possible to reduce the noise sensitivity.
Under Voltage Lockout (UVLO)
To avoid mis-operation of the device at low input voltages an under voltage lockout is
included that disables the device, if the input voltage falls below (2.35V-130mV).
Input Capacitor Selection
The input capacitor reduces the surge current drawn from the input and switching
noise from the device. The input capacitor impedance at the switching frequency shall be
less than input source impedance to prevent high frequency switching current passing to
the input. A low ESR input capacitor sized for maximum RMS current must be used.
Ceramic capacitors with X5R or X7R dielectrics are highly recommended because of their
low ESR and small temperature coefficients. A 10 µ F ceramic capacitor for most
applications is sufficient. For a lower output power requirement application, this value can
be decreased.
Output Capacitor Selection
The output capacitor is required to keep the output voltage ripple small and to
ensure regulation loop stability. The output capacitor must have low impedance at the
switching frequency. Ceramic capacitors with X5R or X7R dielectrics are recommended
due to their low ESR and high ripple current. A 4.7uF ceramic capacitors works for most
of the applications. Higher capacitor values can be used to improve the load transient
response.
Layout Guide
VCC
C1's ground must be
as closer to IC's GND
pin as possible
R4
EN
5
4
C3
APE1913
R1
C1
1
VIN
SW should be connected to
Inductor by wide and short
trace, keep sensitive
components away from this
trace
L1
2
3
SW GND FB
R3
R2
C2
VOUT
C2's ground must be
as closer to IC's GND
pin as possible
D1
4
Advanced Power
Electronics Corp.
APE1913
TYPICAL PERFORMANCE CHARACTERISTICS
VIN V.S Frequency
2
250
1.8
1.6
200
1.4
Frequency (MHz)
ICCQ (uA)
VIN V.S ICCQ
300
150
100
1.2
1
0.8
0.6
0.4
0.2
50
VFB=1.5V
0
0
2.5
3
3.5
4
4.5
5
5.5
2.5
3
3.5
VIN (V)
4
4.5
5
5.5
VIN (V)
IOUT V.S Feedback Voltage
VIN V.S Feedback Voltage
1.27
1.28
1.27
1.26
1.25
1.25
VFB (V)
VFB (V)
1.26
1.24
1.23
VIN=5V
1.24
VIN=3.3V
1.23
1.22
1.22
1.21
VOUT=12V
1.2
1.21
2.5
3
3.5
4
4.5
5
5.5
0
50 100 150 200 250 300 350 400 450
VIN (V)
IOUT (mA)
Temperature V.S Feedback Voltage
2
1.27
1.8
1.6
Frequency (MHz)
1.26
VFB (V)
Temperature V.S Frequency
1.28
1.25
1.24
1.23
1.22
VIN=5V, VOUT=12V
IOUT=10mA
1.21
1.2
1.4
1.2
1
0.8
0.6
0.4
0.2
VIN=5V
0
-40℃ -20℃ 0℃
25℃ 50℃
Temperature
75℃ 100℃ 125℃
-40℃ -20℃
0℃
25℃
50℃
75℃ 100℃ 125℃
Temperature
5
Advanced Power
Electronics Corp.
APE1913
TYPICAL PERFORMANCE CHARACTERISTICS
Temperature V.S Maximum Duty
90
1.8
89
1.6
88
Maximum Duty (%)
EN Threshold Voltage (V)
Temperature V.S EN Threshold Voltage
2
1.4
1.2
ENH
1
0.8
0.6
ENL
0.4
0.2
87
86
85
84
83
82
81
VIN=5V
0
VIN=5V
80
-40℃ -20℃
0℃
25℃
50℃
75℃ 100℃ 125℃
-40℃ -20℃
0℃
25℃
Temperature
Temperature V.S UVLO
75℃ 100℃ 125℃
Duty V.S Current Limit
3
3
2.8
2.5
VIN=5V
2.6
2
Rising
Current Limit (A)
UVLO (V)
50℃
Temperature
2.4
2.2
2
Falling
VIN=3.3V
1.5
1
0.5
1.8
0
1.6
-40℃ -20℃
0℃
25℃
50℃
30%
75℃ 100℃ 125℃
40%
50%
Temperature
70%
Efficiency Test
Efficiency Test
100
100
90
90
80
70
80
Efficiency (%)
Efficiency (%)
60%
Duty
60
50
40
VIN=5V
VIN=3.3V
70
60
50
40
30
30
20
20
VIN=3.3V
VOUT=5V
10
10
0
VOUT=12V
0
0
100
200
300
400
IOUT (mA)
500
600
700
0
100
200
300
400
500
IOUT (mA)
6
Advanced Power
Electronics Corp.
APE1913
TYPICAL PERFORMANCE CHARACTERISTICS
Load Transient
Load Transient
Power ON
Enable ON
Power ON
Enable ON
7
Advanced Power
Electronics Corp.
APE1913
MARKING INFORMATION
TSOT-23-5L
BAYWS
Part Number : BA
Week:
A~Z : 01~26
a~z : 27~52
ID Code : Internal
Year :
A = 2010
1 = 2011
:
:
8
Advanced Power
Electronics Corp.
APE1913
PACKAGE OUTLINES
θ
D
L
E1
E
L1
R
b
e
y
A1
A
A2
e1
C
L2
Dimensions in Millimeters
Min.
Nom.
Max.
A
1.1
A1
0
0.1
A2
0.7
0.9
1
b
0.3
0.4
0.5
C
0.08
0.14
0.2
D
2.8
2.9
3
E
2.6
2.8
3
E1
1.5
1.6
1.7
e
0.95 BSC.
e1
1.90 BSC.
L
0.3
0.45
0.6
L1
0.60 REF.
L2
0.25 BSC.
y
0.1
R
0.1
θ
0o
8o
JECED outline: MO-193 AB
Symbol
Dimensions in Inches
Min.
Nom.
Max.
0.043
0
0.004
0.028
0.035
0.039
0.012
0.016
0.02
0.003
0.006
0.008
0.11
0.114
0.118
0.102
0.11
0.118
0.059
0.063
0.067
0.037 BSC.
0.075 BSC.
0.012
0.018
0.024
0.024 REF.
0.010 BSC.
0.004
0.004
0o
8o