AP2014 Datasheet, PDF (4/13 Pages) Anachip Corp – Synchronous PWM Controller

AP2014/A
SYNCHRONOUS PWM DC-DC BUCK CONTROLLER
Electrical Characteristics
Unless otherwise specified, these specifications apply over V_CC=5V, V_C=12V and T_A=0 to 70°C. Typical values refer to T_A =25°C. Low
duty cycle pulse testing is used which keeps junction and case temperatures equal to the ambient temperature.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
Reference Voltage
V_FB
FB Voltage
L_REG
UVLO
UVLO V_CC
UVLO V_C
FB Voltage Line Regulation
UVLO Threshold - V_CC
UVLO Hysteresis - V_CC
UVLO Threshold - V_C
UVLO Hysteresis - V_C
UVLO FB ^{UVLO Threshold - FB}
UVLO Hysteresis - FB
Supply Current
Operation I_CC V_CC Operation Supply Current
Operation I_C V_C Operation Supply Current
I_CCQ
V_CC Static Supply Current
I_CQ
V_C Static Supply Current
Soft-Start Section
SS_IB
Error Amp
Charge Current
I_FB1
FB Voltage Input Bias Current
I_FB2
FB Voltage Input Bias Current
gm
Transconductance
Oscillator
Freq
Frequency
V_RAMP
Ramp-Amplitude Voltage
Output Drivers
T_r
T_f
T_DB
T_ON
T_OFF
Rise Time
Fall Time
Dead Band Time
Max Duty Cycle
Min Duty Cycle
AP2014
AP2014A
5 < Vcc < 12
Supply Ramping Up
Supply Ramping Up
FB Ramping Down
(AP2014)
FB Ramping Down
(AP2014A)
Freq=200KHz,
C_L=1500pF
Freq=200KHz,
C_L=1500pF
SS=0V
SS=0V
SS=0V
SS=3V, FB=1V
SS=0V, FB=1V
AP2014
AP2014A
C_L =1500pF
C_L =1500pF
FB=1V, Freq=200KHz
FB=1.5V
1.225
0.784
-
4.0
-
3.1
-
0.4
0.3
-
-
-
-
-
10
-
-
450
170
340
1.225
-
-
50
85
0
1.25
0.8
0.2
4.2
0.25
3.3
0.2
0.6
0.4
0.1
7
7
3.3
1
20
-0.1
-64
600
200
400
1.25
50
50
150
90
0
1.275
0.816
V
0.35 %
4.4
V
-
V
3.5
V
-
V
0.8
V
0.5
V
-
V
10 mA
10 mA
6
mA
4.5 mA
30 µA
-
µA
-
µA
750 µmho
230 KHz
460 KHz
1.275 V
100 ns
100 ns
250 ns
95
%
-
%
Function Description
DS30883 Rev. 1 - 0
4 of 13
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AP2014/A
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