Data Sheet
1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Electrical Characteristics
(
V
CC
=5.0 V, T
A
=-40 to 85
o
C, unless otherwise specified.)
AZ34063A
Parameter
OSCILLATOR
Frequency
Charge Current
Discharge Current
Symbol
Conditions
Min
Typ
Max
Unit
f
OSC
I
CHG
I
DISCHG
V
PIN5
=0V, C
T
=1.0nF
T
A
=25
o
C
V
CC
=5.0V to 36V, T
A
=25
o
C
V
CC
=5.0V to 36V, T
A
=25
o
C
30
30
180
5.2
250
38
38
240
6.5
300
45
45
290
7.5
350
KHz
µA
µA
Discharge to Charge Current
I
DISCHG
/I
CHG
Pin 7 to V
CC
, T
A
=25
o
C
Ratio
Current Limit Sense Voltage
OUTPUT SWITCH (Note 3)
Saturation Voltage,
Dalington Connection
Saturation Voltage (Note 4.)
DC Current Gain
Collector Off-State Current
COMPARATOR
Threshold Voltage
Threshold Voltage Line
Regulation
Input Bias Current
TOTAL DEVICE
Supply Current
I
CC
V
CC
=5.0V to 36V, C
T
=1.0nF,
V
PIN7
=V
CC
, V
PIN5
> V
TH
,
V
PIN2
=GND, other pins open
V
TH
R
EGLINE
I
IB
T
A
=25
o
C
T
A
=-40 to 85
o
C
V
CC
=3.0V to 36V
V
IN
=0V
V
CE
(sat)
V
CE
(sat)
h
FE
I
C
(off)
I
SW
=1.0A, Pins 1, 8 connected,
Common Emitter
I
SW
=1.0A, R
PIN8
=82Ω to V
CC
,
Forced
β=20,
Common Emitter
I
SW
=1.0A, V
CE
=5.0V,
T
A
=25 C
V
CE
=36V
o
V
IPK
(sense)
I
CHG
=I
DISCHG
, T
A
=25
o
C
mV
1.0
0.45
50
75
0.01
1.3
0.7
V
V
100
µA
1.225 1.250 1.275
1.21
1.250
1.4
-20
1.29
5
-400
V
mV
nA
4
mA
Note 3: Low duty cycle pulse technique are used during test to maintain junction temperature as close to ambient temperature
as possible.
Note 4: If the output switch is driven into hard saturation (non-Darlington configuration) at low switch currents (≤ 300mA) and
high driver currents (≥ 30mA), it may take up to 2.0us for it to come out of saturation. This condition will shorten the off time
at frequencies 30KHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration,
since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is rec-
ommended:
Sep. 2006 Rev. 1. 3
BCD Semiconductor Manufacturing Limited
5
BCDSEMI [ BCD SEMICONDUCTOR MANUFACTURING LIMITED ]
