APE1723M [A-POWER]
IC SWITCHING REGULATOR, 260 kHz SWITCHING FREQ-MAX, PDSO8, SOP-8, Switching Regulator or Controller;
| 型号： | APE1723M |
| 厂家： | 
ADVANCED POWER ELECTRONICS CORP. |
| 描述： | IC SWITCHING REGULATOR, 260 kHz SWITCHING FREQ-MAX, PDSO8, SOP-8, Switching Regulator or Controller 开关 光电二极管 |
| 文件： | 总10页 (文件大小：345K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Advanced Power
Electronics Corp.
APE1723
200KHz, 1A PWM BUCK DC/DC CONVERTER
FEATURES
DESCRIPTION
The APE1723 series are monolithic IC designed for a
step-down DC/DC converter, and own the ability of driving a
1A load without additional transistor. It saves board space.
The external shutdown function can be controlled by logic
level and then come into standby mode. The internal
Output Voltage : Adjustable Output Version.
Adjustable Version Output Voltage Range :
0.745V to 24V.
200KHz Fixed Switching Frequency.
Thermal-shutdown and Current-limit Protection.
ON/OFF Shutdown Control Input.
Short Circuit Protect (SCP).
compensation makes feedback control having good line and
load regulation without external design. Regarding protected
function, thermal shutdown is to prevent over temperature
operating from damage, and current limit is against over
current operating of the output switch. If the APE1723’s VFB
is down below 0.5V, the switching frequency will be reduced.
The APE1723 operates at a switching frequency of 200KHz
thus allow smaller sized filter components. Other features
include a guaranteed +3% tolerance on output voltage under
specified input voltage and output load conditions, The chips
are available in SOT-23-5L and SO-8 packages.
Operating Voltage can be up to 26V.
Output Load Current : 1A.
Low Power Standby Mode.
Built-in Switching Transistor on Chip.
SOT-23-5L and SO-8 packages.
TYPICAL APPLICATION
Vout=5V/1A
L1
VIN=12V
U1
APE1723
VIN SW
(Refer table)
R1
1
5
6.8K
R3
D1
B140A
100k
C1
100uF
C3
220uF
C6
0.1uF
C2
0.1uF
R2
4
3
1.2K
FB
2 Vss
EN
ON/OFF
C4
0.1uF
VOUT = VFB x (1+R1/R2) , VFB= 0.745V, R2 = 0.75K ~4 K
Table 1 Resistor select for output voltage setting
VOUT
R2
R1
5V
1.2K
2.4K
2K
6.8K
8.2K
4.7K
4.7K
2K
3.3V
2.5V
1.8V
1.5V
1.3V
1.2V
3.3K
2K
2K
1.5K
1.2K
2K
L1 recommend value (VIN=12V, IOUT=1A)
VOUT
L1 Value
1.8V
2.5V
3.3V
5V
33uH
33uH
47uH
47uH
Data and specifications subject to change without notice
1
200812231
Advanced Power
Electronics Corp.
APE1723
ABSOLUTE MAXIMUM RATINGS (at TA=25°C)
Maximum Supply Voltage(VIN) -------------------------- +30V
Feedback PIN Voltage(VFB) ----------------------------- -0.3V to 12V
ON/OFF PIN Voltage(VEN) ------------------------------- -0.3V to VIN
Output Voltage to Ground(VOUT) ------------------------ -0.8V
Power Dissipation(PD) ------------------------------------- (TJ-TA)/RthJA
W
Storage Temperature Range(TST) --------------------- -65°C To 150°C
Operating Junction Temperature Range(TOPJ) ----- -40°C To 125°C
Operating Supply Voltage(VOP) ------------------------- +4.5V to 26V
Thermal Resistance from Junction to Case(RthJC
)
SO-8
50°C/W
SOT-23-5L
180°C/W
Thermal Resistance from Junction to Ambient(RthJA)
SO-8
120°C/W
250°C/W
SOT-23-5L
Note. Rth JA is measured with the PCB copper area(need connect to V SS pins) of approx. 1.5 in 2 (multi-layers)
ORDERING/PACKAGE INFORMATION
( Top View )
(Top View)
APE1723X
NC
NC
NC
SW
EN
1
2
3
4
8
7
6
5
1
SW
VSS
FB
5
4
VIN
EN
Package Type
2
3
VIN
FB
Y5 : SOT-23-5L
M : SO-8
VSS
SOT-23-5L
SO-8
ELECTRICAL SPECIFICATIONS
(VCC=12V, VOUT=3.3V, ILOAD=0.3A, TA=25°C, unless otherwise specified)
UNITS
V
Parameter
SYM
VFB
IQ
TEST CONDITION
IOUT=0.3A
MIN
TYP MAX
Feedback Voltage
Quiescent Current
Feedback Bias Current
Shutdown Supply Current
0.723 0.745 0.767
VFB=1.2V force driver off
IOUT=0.1A
-
3.5
-10
2
6
mA
nA
IFB
-
-
-50
10
ISD
VEN =0V
uA
Oscillator Frequency
FOSC
140
200
260
KHz
Oscillator Frequency of Short
Circuit Protect
FSCP
(Adjustable) When VFB<0.5V
-
50
-
KHz
%
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
V
FB=1.2V force driver off
-
-
0
-
-
DC
VFB=0V force driver on
100
Pear current, No outside circuit
V FB=0V force driver on
IOUT=1A, No outside circuit
VFB=0V force driver on
ILIMIT
Current Limit
1.2
-
-
-
A
V
VSA T
Saturation Voltage
1.2
1.5
2
Advanced Power
Electronics Corp.
APE1723
ELECTRICAL SPECIFICATIONS(Cont.)
UNITS
uA
Parameter
SYM
TEST CONDITION
VIN=26V, No outside circuit
VFB=1.0V force driver off
High (regulator ON)
Low (regulator OFF)
VEN=2.5V (ON)
MIN
TYP MAX
SW Pin=0V
SW Pin=-0.8V
-
-
-
-
-200
SW Pin Leakage
current
ISWL
-5
-
mA
VIH
VIL
IH
2
EN Pin Logic Input Threshold
Voltage
-
V
0.5
-
-
-
20
-5
EN Pin Logic Input Current
EN Pin Input Current
uA
°C
-
-
-
-
IL
VEN=0.3V (OFF)
Thermal Shutdown Temp
TSD
145
PIN DESCRIPTIONS
PIN SYMBOL
VSS
PIN DESCRIPTION
GND Pin
FB
Feedback Pin
Power -Off Pin
H : Normal Operation(Step-down)
L : Step-down Operation Stopped
(All circuits deactivated)
Switch Output
EN
SW
VIN
NC
Operating Voltage Input
No Connect Pin
BLOCK DIAGRAM
EN
200mV
VIN
220mV
0.745V
CURRENT
SOURCE
BIAS
2.5V
REGULATOR
START
UP
REFERENCE
+
COMP.
_
Current
limit
_
COMP.
+
OSC.
+
AMP
+
CONTROL
+
DRIVER
_
COMP.
_
FB
COMP.
SW
Vss
Thermal
Shutdown
3
Advanced Power
Electronics Corp.
APE1723
FUNCTION PIN DESCRIPTION
Pin Functions
VIN
This is the positive input supply for the IC switching regulator. A suitable input
bypass capacitor must be presented at this pin to minimize voltage transients and to
supply the switching currents needed by the regulator.
VSS
Circuit ground.
SW
Internal switch. The voltage at this pin switches between (+VIN – VSAT) and
approximately – 0.5V, with a duty cycle of approximately VOUT / VIN. To minimize
coupling to sensitive circuitry, the PC board copper area connected to this pin should
be minimized.
FB
Senses the regulated output voltage to complete the feedback loop.
EN
Allows the switching regulator circuit to be shutdown using logic level signals thus
dropping the total input supply current to approximately 10uA. Pulling this pin below a
threshold voltage of approximately 0.5V shuts the regulator down, and pulling this pin
above 2.0V (up to a maximum of VIN) turns the regulator on.
4
Advanced Power
Electronics Corp.
APE1723
TYPICAL PERFORMANCE CHARACTERISTICS
Iout vs VFB
(Vin=12V)
Temperature vs VFB
(Vin=12V Iout=300mA)
0.76
0.76
0.755
0.75
0.755
0.75
0.745
0.74
0.745
0.74
0.735
0.73
0.735
0.73
-40 -20
0
25 50 85 105 125
100
300
500
800
1000 1200
Temperature (
)
Iout (mA)
℃
Temperature vs Iccq
(Vin=12V)
Vin vs Iccq
4.4
4.4
4
4
3.6
3.2
2.8
2.4
2
3.6
3.2
2.8
2.4
2
-40 -20
0
25 50
85 105 125
4.5V
8V
12V
16V 20V 24V
26V
Temperature (
)
℃
Vin(V)
Temperature vs Frequency
(Vin=12V Iout=300mA)
Vin vs Frequency
260
240
220
200
180
160
140
260
240
220
200
180
160
140
-40
25
125
-20 Te0mperat5u0re 8(5℃)105
4.5V
8V
12V
16V
Vin(V)
20V
24V
26V
5
Advanced Power
Electronics Corp.
APE1723
TYPICAL PERFORMANCE CHARACTERISTICS
Temperature vs Fscp
(Vin=12V)
Vin vs Fscp
59
80
70
60
50
40
30
20
10
0
57
55
53
51
49
47
45
-40 -20
0
25
50
85
105 125
4.5V
8V
12V
16V
20V
24V
26V
Temperature (
)
℃
Vin(V)
Temperature vs Current Limit
(Vin=12V)
Vin vs Current Limit
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
-40 -20
0
25
50 85 105 125
4.5V 8V
12V 16V 20V 24V 26V
Temperature (
)
Vin(V)
℃
Temperature vs Ishutdown
(Vin=12V)
Iout vs Saturation Voltage
(Vin=12V)
6
5
4
3
2
1
0
1.6
1.4
1.2
1
0.8
0.6
0.4
-40 -20
0
25
50
85
105 125
100
300
500
800
1000
1200
Temperature (
)
℃
Iout (mA)
6
Advanced Power
Electronics Corp.
APE1723
TYPICAL PERFORMANCE CHARACTERISTICS
Iout vs EFFI
Iout vs EFFI
(Vin=8V Vout=5V)
(Vin=12V Vout=5V)
90.00%
90.00%
86.00%
82.00%
78.00%
74.00%
70.00%
86.00%
82.00%
78.00%
74.00%
70.00%
200
500
800
1000
200
500
800
1000
Iout (mA)
Iout (mA)
Output Ripple (12V→5V @1A)
Output Ripple (24V→5V @1A)
EN Off→ON Test (12V→5V @1A)
EN Off→ON Test (24V→5V @1A)
7
Advanced Power
Electronics Corp.
APE1723
TYPICAL PERFORMANCE CHARACTERISTICS
Load Transient (12V→5V @0.1~1A)
Load Transient (24V→5V @0.1~1A)
8
ADVANCED POWER ELECTRONICS CORP.
Package Outline : SOT-23-5L
Millimeters
NOM
1.10
SYMBOLS
MIN
1.00
0.00
0.70
0.30
0.10
2.70
1.40
---
MAX
1.30
0.10
0.90
0.50
0.25
3.10
1.80
---
A
A1
A2
b
---
0.80
0.40
C
0.15
D
2.90
E
1.60
e
1.90(TYP)
2.80
H
2.60
0.37
0°
3.00
---
L
---
θ1
e1
5°
9°
---
0.95(TYP)
---
Note 1：Package Body Sizes Exclude Mold Flash Protrusions or Gate Burrs.
Note 2：Tolerance ± 0.1000 mm(4mil) Unless Otherwise Spe- cified.
Note 3：Coplanarity：0.1000 mm
Note 4：Dimension L Is Measured in Gage plane.
Part Marking Information & Packing : SOT-23-5L
Part Number : N1
Year ---- 8 : 2008
A : 2010
XXYW
Weak : (01~26) A~Z
(27~52) a~z
9
ADVANCED POWER ELECTRONICS CORP.
Package Outline : SO-8
D
Millimeters
SYMBOLS
MIN
1.35
0.10
0.33
0.19
4.80
5.80
3.80
NOM
MAX
A
A1
B
c
1.55
1.75
0.25
0.51
0.25
5.00
6.50
4.00
8
7
6
3
5
4
0.18
0.41
E
E1
0.22
D
E
4.90
1
6.15
2
E1
e
3.90
1.27 TYP
0.254 TYP
－
e
G
L
0.38
0.00
0.90
8.00
B
α
4.00
A
A1
G
1.All Dimension Are In Millimeters.
2.Dimension Does Not Include Mold Protrusions.
Part Marking Information & Packing : SO-8
Part Number
Package Code
1723M
YWWSSS
Date Code (YWWSSS)
Y：Last Digit Of The Year
WW：Week
SSS：Sequence
10
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