AP1551SL-13 Diodes Inc, AP1551SL-13 Datasheet - Page 4

• Manufacturer Part Number: AP1551SL-13
• Description: IC CONV DC-DC PWM 2CH 2A 16-SOIC
• Manufacturer: Diodes Inc
• Type: Step-Down (Buck)r

Specifications of AP1551SL-13

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 2
• Voltage - Output: 1.23 ~ 18 V
• Current - Output: 2A
• Frequency - Switching: 150kHz
• Voltage - Input: 4.5 ~ 22 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Output Voltage: + 1.23 V to + 18 V
• Switching Frequency: 150 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 0 % to 100 %
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: AP1551SLDITR

150KHz, Dual Channel 2A PWM Buck DC/DC Converter
Specifications with boldface type are for full operating temperature range, the other type are for T
Anachip Corp.
www.anachip.com.tw
AP1551-channel 1
AP1551-channel 2
Typical Application Circuit
12V DC input
Electrical Characteristics (Continued)
Not Recommended for New Design
820uF
Cin
OFF ON
OFF ON
Symbol
V
V
FB1
η
FB2
η
Output
Feedback
Efficiency
Output
Feedback
Efficiency
Parameter
1
2
3
4
5
6
7
8
Vout1 =V
Vout2 =V
V
R2 = R4 = 1K ~ 3K
FB
GND2
GND2
GND1
GND1
SD2
V
SD1
V
= 1.235V
IN2
IN1
FB
FB
4.5V < V
0.2A < I
V
3V
V
4.5V < V
0.2A < I
V
3V
V
×
×
GND1
GND1
GND2
GND2
V
OUT
IN
OUT
IN
V
(1
(1
FB1
OUT1
FB2
OUT2
= 12V, I
= 12V, I
Conditions
+
+
programmed for
programmed for
4/8
R2
R3
R4
R1
LOAD
LOAD
16
15
14
13
12
11
10
9
IN
IN
);
);
< 22V
< 22V
LOAD
LOAD
< 2A
< 2A
=2A
=2A
33uH
Typ.
1.23
1.23
76
76
1.1k
1k
R1
R2
2.5V Vout1
Ω
J
=25ºC.
Ω
1.193/1.18
1.267/1.28
1.193/1.18
1.267/1.28
470uF
Cout1
Limit
33uH
Rev. 1.0 Nov 17, 2004
AP1551
VMAX
VMIN
3.3V Vout2
1.8k
V
1k
Unit
V
R3
R4
%
%
V
MAX
V
MIN
Ω
Ω
470uF
Cout2