AP1515 Datasheet, PDF (3/6 Pages) Anachip Corp – 150KHz, 1.5A PWM Buck DC/DC Converter

150KHz, 1.5A PWM Buck DC/DC Converter
AP1515
„ Absolute Maximum Ratings
Symbol
V_CC
V_SD
V_FB
V_OUT
P_D
T_ST
T_OP
V_OP
Parameter
Supply Voltage
ON/OFF Pin input voltage
Feedback Pin voltage
Output voltage to Ground
Power dissipation
Storage temperature
Operating temperature
Operating voltage
Rating
+24
-0.3 to +18
-0.3 to +18
-1
Internally limited
-65 to +150
-40 to +125
+4.5 to +22
Unit
V
V
V
V
W
o_C
o_C
V
„ Electrical Characteristics (All Output Voltage Versions)
Unless otherwise specified, VIN= 12V for 3.3V, 5V, adjustable version and VIN=18V for the 12V version. ILOAD = 0.5A
Symbol
Parameter
Conditions
Min. Typ. Max.
I_FB
Feedback bias current
V_FB=1.3V
(Adjustable version only)
-
-10
-50
-100
F_OSC Oscillator frequency
127
150
173
110
-
173
F_SCP
Oscillator frequency of When current limit occurred
short circuit protect
and V_FB < 0.5V, Ta=25 ^oC
5
15
25
V_SAT
DC
Saturation voltage
Max. Duty Cycle (ON)
Min. Duty Cycle (OFF)
I_OUT=2A
No outside circuit
V_FB=0V force driver on
V_FB=0V force driver on
V_FB=12V force driver off
Peak current
1.4
-
1.25
1.5
-
100
-
-
0
-
I_CL
I_L
I_Q
I_STBY
Current limit
Output = 0
Output
leakage
Output = -1 current
Quiescent Current
Standby Quiescent
Current
No outside circuit
V_FB=0V force driver on
No outside circuit
V_FB=12V force driver off
V_IN=22V
V_FB=12V force driver off
ON/OFF pin=5V
V_IN=22V
2
-
-
-
-
-200
-
-5
-
5
10
-
70
150
200
θ_JC Thermal Resistance
Junction to case
-
30
-
θ_JA Note 1
Junction to ambient
-
100
-
Part Number
AP1515-ADJ
Symbol
V_FB
η
Parameter
Output
Feedback
Efficiency
Conditions
4.5V < V_IN < 22V
0.2A < I_LOAD < 1.5A
V_OUT programmed for 3V
V_IN = 12V, I_LOAD=1.5A
Typ.
1.23
78
Limit
1.193/1.18
1.267/1.28
AP1515-3.3V
V_OUT
Output voltage
4.75V < V_IN < 22V
0.2A < I_LOAD < 1.5A
3.3
3.168/3.135
3.432/3.465
η
Efficiency
V_IN = 12V, I_LOAD=1.5A
80
Specifications with boldface type are for full operating temperature range, the other type are for TJ=25ºC.
Note 1: Pin 4(GND) (< 1 mm length) & direct connect to internal GND layer.
Unit
nA
KHz
KHz
V
%
A
uA
mA
mA
uA
o_C/W
o_C/W
Unit
V
V_MIN
V_MAX
%
V
V_MIN
V_MAX
%
Anachip Corp.
www.anachip.com.tw
Rev.1.0 Oct 29, 2004
3/6