MP1530 – TRIPLE OUTPUT STEP-UP PLUS LINEAR REGULATORS FOR TFT BIAS

MP1530 Rev. 1.4

www.MonolithicPower.com

3

5/19/2006

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© 2006 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

(4)

Parameter

Symbol Condition

Min

Typ

Max

Units

Input Voltage Range

2.7

5.5

V

IN Undervoltage Lockout Threshold

IN Rising

2.25

2.65

V

IN Undervoltage Lockout Hysteresis

100

mV

IN Shutdown Current

0.5

1

µA

IN Quiescent Current

1.3

1.6

mA

EN Input High Voltage

1.6

V

EN Input Low Voltage

0.3

V

EN Hysteresis

100

mV

EN Input Bias Current

1

µA

Oscillator

Switching Frequency

1

1.4

MHz

Maximum Duty Cycle

85

90

%

Soft Start Period

6

ms

3

µs

Regulator #2 Turn-On/Turn-Off Delay

6

ms

Error Amplifier

Error Amplifier Voltage Gain

400

V/V

Error Amplifier Transconductance

1000

µA/V

COMP Maximum Output Current

±100

µA

FB1, FB3 Regulation Voltage

1.22

1.25

1.28

V

FB2 Regulation Voltage

–25

0

+25

mV

FB1, FB3 Input Bias Current

±100

nA

FB2 Input Bias Current

±100

nA

Reference (REF)

REF Regulation Voltage

1.22

1.25

1.28

V

REF Load Regulation

1

1.2

%

Output Switch (SW)

250

mΩ

SW On Resistance

400

mΩ

SW Current Limit

2.8

3.6

A

SW Leakage Current

0.5

1

µA

GL Dropout Voltage

(5)

0.3

V

GH Dropout Voltage

(5)

1

V

GL Leakage Current

1

µA

GH Leakage Current

1

µA

Thermal Shutdown

160

°C

Notes:

4) Typical values are guaranteed by design, not production tested.

5) Dropout Voltage is the input to output differential at which the circuit ceases to regulate against further reduction in input voltage.