MP1530 – TRIPLE OUTPUT STEP-UP PLUS LINEAR REGULATORS FOR TFT BIAS
ELECTRICAL CHARACTERISTICS (5)
VIN = 5V, TA = +25C, unless otherwise noted.
Parameter
Symbol Condition
Min
2.7
Typ
Max
5.5
Units
V
Input Voltage Range
IN Undervoltage Lockout Threshold
IN Undervoltage Lockout Hysteresis
IN Shutdown Current
IN Quiescent Current
EN Input High Voltage
EN Input Low Voltage
EN Hysteresis
VIN
VUVLO IN Rising
2.25
2.65
V
100
0.5
1.3
mV
μA
mA
V
1
VEN 0.3V
VEN > 2V, VFB1 = 1.4V
1.6
VEN HIGH EN Rising
1.6
0.3
1
V
100
mV
μA
EN Input Bias Current
Oscillator
Switching Frequency
Maximum Duty Cycle
Soft Start Period
fSW
1
1.4
90
6
MHz
%
DM
85
CCT = 10nF
ms
μs
3
Regulator #2 Turn-On/Turn-Off Delay
CCT = 10nF
6
ms
Error Amplifier
Error Amplifier Voltage Gain
Error Amplifier Transconductance
COMP Maximum Output Current
FB1, FB3 Regulation Voltage
FB2 Regulation Voltage
FB1, FB3 Input Bias Current
FB2 Input Bias Current
Reference (REF)
AvEA
400
1000
±100
1.25
0
V/V
μA/V
μA
GmEA
1.22
–25
1.28
+25
V
mV
nA
VFB1 = VFB3 = 1.25V
±100
±100
VFB2 = 0V
nA
REF Regulation Voltage
REF Load Regulation
IREF = 50μA
1.22
2.8
1.25
1
1.28
1.2
V
0μA < IREF < 200μA
%
Output Switch (SW)
VIN = 5V
VIN = 3V
250
400
3.6
mΩ
mΩ
A
SW On Resistance
SW Current Limit
SW Leakage Current
GL Dropout Voltage (6)
GH Dropout Voltage (6)
GL Leakage Current
GH Leakage Current
Thermal Shutdown
Notes:
ILIM
VSW = 22V
0.5
1
0.3
1
μA
V
VGL = –10V, IGL = –20mA
VGH = 20V, IGH = 20mA
VIN2 = –15V, VGL = GND
VIN3 = 25V, VGH = GND
V
1
μA
μA
C
1
160
5) Typical values are guaranteed by design, not production tested.
6) Dropout Voltage is the input to output differential at which the circuit ceases to regulate against further reduction in input voltage.
MP1530 Rev. 1.41
5/25/2011
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