LTC1704B Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC1704B
Linear Technology
LTC1704B Datasheet PDF : 28 Pages
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LTC1704/LTC1704B
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage
VCC, PVCC .............................................................. 6V
BOOST ................................................................. 12V
BOOST – SW ......................................................... 6V
Input Voltage
SW ............................................................. –1V to 6V
FB, REGFB, REGILM,
RUN/SS, IMAX .......................... – 0.3V to (VCC + 0.3V)
Peak Output Current <10µs
TG, BG (Note 7) ..................................................... 5A
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
TG 1
SW 2
IMAX 3
RUN/SS 4
COMP 5
FB 6
REGDR 7
GND 8
16 BOOST
15 PVCC
14 BG
13 PGND
12 PGOOD
11 VCC
10 REGILM
9 REGFB
GN PACKAGE
16-LEAD PLASTIC SSOP
TJMAX = 125°C, θJA = 130°C/W
ORDER PART
NUMBER
LTC1704EGN
LTC1704BEGN
GN PART MARKING
1704
1704B
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
VCC = PVCC = BOOST = 5V, unless otherwise specified. (Note 3)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VCC
VCC Supply Voltage
q 3.15
5
5.5
V
PVCC
PVCC Supply Voltage
(Note 4)
q 3.15
5
5.5
V
BVCC
BOOST Pin Voltage
VBOOST – VSW (Note 4)
q 3.15
5
5.5
V
IVCC
VCC Supply Current
Test Circuit
VRUN/SS = 0V, VREGILM = 0V
q
4.5
8
mA
q
75
150
µA
IPVCC
PVCC Supply Current
Test Circuit, No Load at Drivers
VRUN/SS = 0V (Notes 5, 6)
q
3
6
mA
q
50
µA
IBOOST BOOST Pin Current
VSHDN RUN/SS Shutdown Threshold
Test Circuit
VRUN/SS = 0V (Notes 5, 6)
VRUN/SS ↑
q
2
6
mA
q
50
µA
q 0.2
0.5
V
ISS
RUN/SS Source Current
VRUN/SS = 0V
–3
µA
Switcher Control Loop
VFB
Feedback Voltage
q 0.788 0.800 0.812
V
IFB
Feedback Input Current
q
±1
µA
dVFB
Feedback Voltage Line Regulation
Output Voltage Load Regulation
VCC = 3.3V to 5.5V
(Note 7)
q
±0.01 ±0.1
%/V
q – 0.2 – 0.1
%
AFB
Feedback Amplifier DC Gain
GBW Feedback Amplifier Gain Bandwidth Product f = 100kHz (Note 7)
q 74
85
dB
20
MHz
ICOMP
VPGOOD
Feedback Amplifier Output Sink/Source Current
Negative Power Good Threshold
Positive Power Good Threshold
q ±3
±10
mA
q –15 –10
–6
%
q6
10
15
%
IIMAX IMAX Source Current
VIMAX = 0V
q –11.5 –10 – 8.5
µA
1704bfa
2
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