MAX8758 Maxim Integrated Products, MAX8758 Datasheet - Page 2

• Manufacturer Part Number: MAX8758
• Description: Step-Up Regulator
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
IN, SHDN, CTL, LDO to GND ...................................-0.3V to +6V
SUPB, LX, OUT to GND..........................................-0.3V to +14V
OUTB, NEGB, POSB to GND ..................-0.3V to (SUPB + 0.3V)
THR, DLP, MODE, FREQ, COMP, FB,
PGND to GND ......................................................-0.3V to + 0.3V
SRC to GND ..........................................................-0.3V to + 30V
GON, DRN to GND ....................................-0.3V to V SRC + 0.3V
GON RMS Current Rating................................................± 50mA
ELECTRICAL CHARACTERISTICS
(V
Step-Up Regulator with Switch Control
and Operational Amplifier for TFT LCD
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
IN Input Voltage Range
IN Quiescent Current
IN Undervoltage Lockout
LDO Output Voltage
LDO Undervoltage Lockout Voltage
OUT Supply Voltage Range
OUT Overvoltage Fault Threshold
OUT Undervoltage Fault Threshold
OUT Supply Current
Shutdown Supply Current
(Total of IN, OUT, and SUPB)
Thermal Shutdown
STEP-UP REGULATOR
Operating Frequency
Oscillator Maximum Duty Cycle
FB Regulation Voltage
FB Fault Trip Level
Duration to Trigger Fault Condition
FB Load Regulation
FB Line Regulation
FB Input Bias Current
FB Transconductance
FB Voltage Gain
LX On-Resistance
IN
SS to GND..............................................-0.3V to V LDO + 0.3V
_______________________________________________________________________________________
= V
SHDN
PARAMETER
= +3V, OUT = +10V, FREQ = GND, T
V
IN rising, 200mV hysteresis, LX remains off below
this level
6V ≤ V
LDO rising, 200mV hysteresis
(Note 1)
V
V
V
Temperature rising, 15°C hysteresis
FREQ = GND
FREQ = IN
FREQ = GND
FREQ = IN
Falling edge
FREQ = GND
FREQ = IN
0 < I
V
V
∆I = 5µA at COMP
FB to COMP
I
LX
IN
FB
FB
IN
IN
FB
= 200mA
= 1.8V to 5.5V
= 3V, V
= V
= 1.5V, no load
= 1.1V, no load
= 1.3V
LOAD
OUT
OUT
< 200mA, transient only
A
≤ 13V, I
FB
= V
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= 1.5V
SUPB
LDO
CONDITIONS
= 3V
= 12.5mA, V
OUTB RMS Current Rating ..............................................± 60mA
LX RMS Current Rating .........................................................1.6A
Continuous Power Dissipation (T A = +70°C)
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
24-Pin, 4mm x 4mm Thin QFN
(derate 16.9mW/°C above +70°C) ..........................1349.1mW
FB
= 1.5V (Note1)
1.228
-0.15
1020
MIN
13.2
0.96
512
1.8
4.8
2.4
4.5
91
88
43
47
75
+160
1200
-0.08
TYP
13.6
1.24
600
125
160
700
115
1.3
5.0
2.7
0.5
1.0
27
95
92
51
55
-1
4
4
+0.15
1.252
MAX
1380
1.75
13.0
14.0
10.0
1.04
768
200
280
200
A
5.5
5.2
3.0
1.4
2.0
40
10
99
96
64
65
= +25°C.)
UNITS
kHz
%/V
mΩ
mA
V/V
ms
µA
µA
nA
µS
°C
%
%
V
V
V
V
V
V
V
V
V