CP34063
1.5A,Step-Up/Down/Inverting Switching Regulators
ELECTRICAL CHARACTERISTICS (V = 5.0 V, T = T to T [Note 4], unless otherwise specified.)
high
CC
A
low
Characteristics
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (V
= 0 V, C = 1.0 nF, T = 25°C)
f
24
24
33
33
42
42
kHz
µA
µA
–
Pin 5
T
A
osc
Charge Current (V = 5.0 V to 40 V, T = 25°C)
I
CC
A
chg
Discharge Current (V = 5.0 V to 40 V, T = 25°C)
I
dischg
140
5.2
250
220
6.5
300
260
7.5
350
CC
A
Discharge to Charge Current Ratio (Pin 7 to V , T = 25°C)
I /I
dischg chg
CC
A
Current Limit Sense Voltage (I
= I
dischg
, T = 25°C)
A
V
ipk(sense)
mV
chg
OUTPUT SWITCH (Note 5)
Saturation Voltage, Darlington Connection
(I = 1.0 A, Pins 1, 8 connected)
V
V
–
–
1.0
1.3
0.7
V
V
CE(sat)
SW
Saturation Voltage (Note 6)
(I = 1.0 A, R = 82 Ω to V , Forced β ] 20)
0.45
CE(sat)
SW
Pin 8
CC
DC Current Gain (I
= 1.0 A, V = 5.0 V, T = 25°C)
h
FE
50
–
120
–
–
SW
CE
A
Collector Off–State Current (V = 40 V)
I
0.01
100
µA
CE
C(off)
COMPARATOR
Threshold Voltage
V
th
V
T
T
A
= 25°C
1.225
1.21
1.25
–
1.27
1.29
A
= T to T
low high
Threshold Voltage Line Regulation (V = 3.0 V to 40 V)
Reg
–
–
1.4
5.0
mV
nA
CC
line
Input Bias Current (V = 0 V)
I
IB
–40
–400
in
TOTAL DEVICE
Supply Current (V = 5.0 V to 40 V, C = 1.0 nF, Pin 7 = V
,
I
CC
–
2.5
4.0
mA
CC
T
CC
V
Pin 5
> V , Pin 2 = Gnd, remaining pins open)
th
4. T
= 0°C for CP34063
low
5. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
6. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents
(≥ 30 mA), it may take up to 2.0 µs for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, 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 recommended:
I
output
C
Forced b of output switch :
w 10
I
driver – 7.0 mA *
C
* The 100 Ω resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Rev 1.1 Jul.18,2003
Page 3 of 10
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
