CM2593 Datasheet, PDF (4/12 Pages) Champion Microelectronic Corp. – 2A Step Down VOLTAGE REGULATOR

CM2593/P
2A Step Down VOLTAGE REGULATOR
„ ELECTRICAL CHARACTERISTICS(All Output Voltage Versions)
Unless otherwise specified, V_IN=12V for 3.3V, 5V, adjustable version and V_IN=24V for the 12V version. I_LOAD = 0.2A
Symbol
Parameter
I_BB
Feedback bias current
Conditions
V_FB=1.3V
(Adjustable version only)
F_OSC
Fscp
V_SAT
DC
I_CL
I_L
I_Q
I_STBY
V_IL
V_IH
oscillator frequency
T_J=25℃
-40℃<=T_J<=125℃
Oscillator frequency of short When current limit occurred
circuit protect
and VFB <0.55V
saturation voltage
I_OUT=1.5A
no outside circuit
V_FB=0V force driver on
Max. Duty Cycle(ON)
V_FB=0V force driver on
Min. Duty cycle(OFF)
V_FB=12V force driver off
peak current
current limit
no outside circuit
V_FB=0 force driver on
Output = 0
Output = 1
no outside circuit
Output
current
leakage
V_FB=12 force driver off
V_IN=24V
Quiescent Current
V_FB=12 force driver off
Standby Quiescent
ON/OFF pin=5V
Current
V_IN=24V
ON/OFF pin logic input
threshold voltage
Low (regulator ON)
High (regulator OFF)
Min.
127
110
2.4
-
2.0
ON/OFF pin logic
I_H
input current
V_LOGIC=2.5V (OFF)
I_L
ON/OFF pin input current V_LOGIC=0.5V (ON)
Ts
Over temperature shutdown ^{Tj increasing}
threshold
Tj decreasing
Typ.
-10
150
150
30
1.15
100
0
2.8
-5
5
70
1.3
-0.1
175
150
Max.
-50
-100
173
173
60
1.4
1.5
3.3
3.6
-200
10
150
200
0.6
-
-0.01
-1
Unit
nA
Khz
Khz
V
%
A
uA
mA
mA
uA
V
uA
o_C
2007/01/25 Rev. 1.4
Champion Microelectronic Corporation
Page 4