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ZXLD1322 Datasheet(PDF) 6 Page - Diodes Incorporated

Part # ZXLD1322
Description  BUCK/BOOST MODE DC-DC CONVERTER
PDF  17 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

ZXLD1322 Datasheet(HTML) 6 Page - Diodes Incorporated

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ZXLD1322
ZXLD1322
Document number: DS32166 Rev. 3 - 2
6 of 17
www.diodes.com
April 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
Switching NPN Transistor
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
ISW
Average continuous switch current
(c)
2
A
IBON(max)
Maximum base current into switch
transistor from internal drive circuit
(d)
2V<VIN<18V BIAS pin at 0V
30
50
70
mA
IBON
Base current into switch transistor
using external resistor (RBASE) from
BIAS pin to ground
RBIAS = 1680Ω
10
mA
V(BR)CE
Collector-Emitter breakdown voltage
IC = 10mA
15
V
VCE(sat)
Collector-Emitter saturation voltage
IC = 0.1A, IB = 10mA
IC = 2A, IB = 50mA
(e)
50
120
mV
hFE
Static forward current transfer ratio
IC = 200mA, VCE = 2V
IC = 2A, VCE = 2V
209
116
COBO
Output capacitance
VCB = 10V,f = 1MHz
64
pF
t(on)
Turn-on time
Ic = 0 to IC = 2A VIN = 10V
30
ns
t(off)
Turn-off time
IC = 2A to Ic < 100μA
28
ns
High-Side Current Monitor
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
VM_VIN
Supply voltage
2.5
18
V
VMON
Sense voltage
=V(VIN) – VM_VIN
0
100
200
mV
I_M_VIN
Input current
Measured into M_VIN pin
0.08
1
µA
TCO(MON)
Temperature coefficient
VMON=10mV
VMON=100mV
370
150
ppm/K
BW
Bandwidth
VMON=10mV
VMON=100mV
350
2.5
KHz
Mhz
Gm
Tran conductance
ΔIOUT/ΔVMON
1
mA/V
ACC
Accuracy
RM = 0.1Ω
VMON = 100mV
-3
3
%
Reference Current Monitor
Symbol
Parameter
Condition
Min.
Typ.
Max.
Unit
VADJ
Adjust Voltage
0
500
mV
TCO
(MON)
Temperature coefficient
VADJ = 50mV
VADJ = 500mV
160
200
ppm/K
BW
Bandwidth
VADJ = 50mV
VADJ = 500mV
275
3
KHz
Mhz
Gm
Tran conductance
ΔIOUT/ΔVADJ
200
µA/V
ACC
Accuracy
VADJ = 500mV
-3
3
%
Notes:
(c) Measured under pulse conditions.
(d) This current is measured via the collectors and emitters of the switch with these connected to ground (0V)
(e) Measured under pulse conditions. Peak Current = IC



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