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PDF AZ34063 Data sheet ( Hoja de datos )
| Número de pieza | AZ34063 | |
| Descripción | 0.8A Step-Down / Step-Up / Inverting DC-DC Converter | |
| Fabricantes | Shanghai SIM-BCD Semiconductor | |
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0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
General Description
Features
Data Sheet
AZ34063
The AZ34063 is a monolithic switching regulator
control circuit containing the primary functions
required for DC-DC converters. This device consists
of internal temperature compensated reference, voltage
comparator, controlled duty cycle oscillator with active
current limit circuit, driver and high current output
switch. This device is specifically designed to be
used in Step-Down, Step-Up and Voltage-Inverting
applications with a minimum number of external com-
ponents.
• Operation from 3.0V to 36V Input
• Low Standby Current
• Current Limiting
• Output Switch Current to 0.8A
• Output Voltage Adjustable
• Operation Frequency up to 65KHz (CT=330pF)
• Precision 2% Reference
Applications
The AZ34063 is available in 2 packages: SOIC-8 and
DIP-8.
· Battery Chargers
· NICs/ Switches/ Hubs
· ADSL Modems
· Negative Voltage Power Supplies
SOIC-8
DIP-8
Figure 1. Package Types of AZ34063
Apr. 2005 Rev. 2. 1
BCD Semiconductor Manufacturing Limited
1
1 page  
Data Sheet
0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
AZ34063
Electrical Characteristics
(VCC = 5.0 V, TA = -40 to 85oC, unless otherwise specified.)
Parameter
OSCILLATOR
Frequency
Charge Current
Discharge Current
Discharge to Charge
Current Ratio
Symbol
Conditions
Min Typ Max Unit
fOSC
VPin 5 = 0 V,
CT = 1.0 nF 24 33 42 KHz
TA = 25oC
CT = 330 pF 50 65 80 KHz
ICHG
VCC = 5.0 V to 36 V, TA = 25oC 24 35 42 µA
IDISCHG VCC = 5.0 V to 36 V, TA = 25oC 140 220 260 µA
IDISCHG/ICHG Pin 7 to VCC, TA = 25oC
5.2 6.5 7.5
Current Limit Sense
VIPK(sense) ICHG = IDISCHG, TA = 25oC
OUTPUT SWITCH (Note 3)
Saturation Voltage,
Dalington Connection
VCE(sat) ISW = 0.6 A,
Pins 1, 8 connected
Saturation Voltage (Note 4)
DC Current Gain
Collector Off-State Current
COMPARATOR
VCE(sat)
hFE
IC(off)
ISW = 0.6 A, RPin 8 = 82 Ω to
VCC, Forced β = 20
ISW = 0.6 A,
VCE = 5.0 V,
VCE = 36 V
Threshold Voltage
Threshold Voltage Line
Regulation
VTH
REGLINE
TA = 25oC
TA = -40 to 85oC
VCC = 3.0 V to 36 V
250 300 350
1.0 1.3
0.45 0.8
50 75
0.01 100
1.225 1.250 1.275
1.21 1.29
1.4 5
Input Bias Current
TOTAL DEVICE
Supply Current
IIB VIN = 0 V
ICC VCC = 5.0 V to 36 V, CT = 1.0 nF,
Pin 7 = VCC, VPin 5 > VTH,
Pin 2 = GND, other pins open
-20 -400
4
mV
V
V
µA
V
mV
nA
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 configura-
tion, since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is
recommended:
Apr. 2005 Rev. 2. 1
BCD Semiconductor Manufacturing Limited
5
5 Page 
0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER
Mechanical Dimensions
Data Sheet
AZ34063
SOIC-8
Unit: mm(inch)
4.800(0.189)
5.000(0.197)
7°
1.350(0.053)
1.750(0.069)
0.320(0.013)
8°
7°
1.270(0.050)
TYP
0.100(0.004)
0.300(0.012)
0.675(0.027)
0.725(0.029)
8°
D 5.800(0.228)
6.200(0.244)
D
20:1 φ 0.800(0.031)
0.200(0.008)
1.000(0.039)
3.800(0.150)
4.000(0.157)
0°
8°
0.330(0.013)
0.510(0.020)
0.900(0.035)
1°
5°
0.190(0.007)
0.250(0.010)
R0.150(0.006)
Apr. 2005 Rev. 2. 1
BCD Semiconductor Manufacturing Limited
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AZ34063.PDF ] | |
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