MAX1778EUG+ Maxim Integrated Products, MAX1778EUG+ Datasheet - Page 6

• Manufacturer Part Number: MAX1778EUG+
• Description: IC DCDC CONV MULTI OUT 24TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1778EUG+

• Applications: Converter, TFT, LCD
• Voltage - Input: 2.7 ~ 5.5 V
• Number Of Outputs: 5
• Voltage - Output: 2.7 ~ 13 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
(V
PGND = GND, C
Quad-Output TFT LCD DC-DC
Converters with Buffer
6
Input Supply Range
Input Undervoltage
Threshold
IN Quiescent Supply
Current
SUPP Quiescent Current
SUPN Quiescent Current
IN Shutdown Current
SUPP Shutdown Current
SUPN Shutdown Current
SUPL Shutdown Current
SUPB Shutdown Current
MAIN STEP-UP CONVERTER
Main Output Voltage Range
FB Regulation Voltage
FB Input Bias Current
Operating Frequency
Oscillator Maximum Duty
Cycle
LX Switch On-Resistance
LX Leakage Current
LX Current Limit
FB Fault Trip Level
IN
_______________________________________________________________________________________
= +3.0V, SHDN = IN, V
PARAMETER
REF
= 0.22µF, C
SUPP
BUF
SYMBOL
= V
R
V
I
V
I
F
SUPN
SUPP
LX(ON)
UVLO
V
I
V
MAIN
I
I
OSC
I
LIM
= 1µF, T
IN
FB
LX
SUPN
FB
IN
= V
A
V
V
V
V
V
V
V
V
MAX1778/MAX1880/MAX1881/MAX1882
V
MAX1778/MAX1880/MAX1881/MAX1882
V
MAX1778/MAX1881/MAX1883/MAX1884
V
Integrator enabled, C
Integrator disabled (INTG = REF)
V
MAX1778/MAX1880/MAX1883
MAX1881/MAX1882/MAX1884/MAX1885
I
V
Phase I = soft-start (1024/f
Phase IV = fully on (after 3072/f
Falling edge, FLTSET = GND
SUPB
LX
IN
FB
FBP
FBN
FBP
FBN
SHDN
SHDN
SHDN
SHDN
SHDN
= -40°C to +85°C, unless otherwise noted.) (Note 2)
FB
LX
Rising, 40mV hysteresis (typ)
= 100mA
=
= 13V
= 1.25V, INTG = GND
= 1.5V,
= 1.5V
= -0.2V
= -0.2V
= V
= 0, V
= 0, V
= 0, V
= 0, V
= 0, V
SUPL
IN
SUPP
SUPN
SUPL
SUPB
= 5V
= 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND =
CONDITIONS
= 13V,
= 13V,
MAX1778/MAX1880/
MAX1883 (f
MAX1881/MAX1882/MAX1884/
MAX1885 (f
MAX1778/MAX1880
(f
MAX1881/MAX1882
(f
MAX1778/MAX1880
(f
MAX1881/MAX1882
(f
= 13V
= 13V,
OSC
OSC
OSC
OSC
INTG
= 1MHz)
= 500kHz)
= 1MHz)
= 500kHz)
= 1000pF
OSC
OSC
OSC
)
OSC
= 1MHz)
= 500kHz)
)
1.223
0.275
1.21
0.75
1.07
375
MIN
V
-50
1.1
79
2.7
2.2
IN
1.269
0.525
MAX
1.29
1.25
2.05
1.14
+50
625
5.5
0.7
0.5
0.7
0.5
0.7
2.6
10
10
10
10
13
13
91
20
1
1
UNITS
MHz
kHz
mA
mA
mA
µA
µA
µA
µA
µA
nA
µA
%
Ω
V
V
V
V
A
V