MDT7727

Step-up DC/DC Converter

5. Electrical Characteristics

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Output Voltage

----------------

2.6325

2.7

2.7675

V

Output Ripple

----------------

±2.5

±3

%

Vin

----------------

6

V

Iout=1mA

0.75

0.8

V

Vstart

Iout=30mA

1.1

1.2

V

Iout=1mA

0.7

V

Vhold

Iout=30mA

1

V

Iin

Without loading

20

25

uA

Supply Current IDD1 VIN=VOUT × 0.95

Measured at VOUT pin

without external component

45

52

uA

Supply Current IDD2 VIN=VOUT+0.5V

Measured at VOUT pin

without external component

8

12

uA

Shutdown Current

VCE=0 , VIN=VOUT×0.95

0.5

uA

LX Leakage Current VIN=6V

1

uA

Maximum Oscillator

Frequency

VIN=VOUT0.95

Measured at ETR pin

200

230

kHz

Oscillator Duty Cycle VIN=VOUT_0.95

Measured at ETR pin

70

75

80

%

Efficiency

L , SD , CL etc. connected

85

%

+2.7V Output Type

VIN=VOUT×0.6 ; IOUT=30mA ; Ta=25℃ (Unless otherwise specified)

Note:

" Supply current 1 " is the supply current while the oscillator is continuously oscillating. In

actual operation the oscillator periodically operates. The current actually provided by an

external VIN source from VOUT pin.

" Supply current 2 " is the supply current while the oscillator stop oscillating. In actual

operation the oscillator periodically operates. The current actually provided by an external

VIN source from VOUT pin

This specification are subject to be changed without notice. Any latest information please preview

http;//www.mdtic.com.tw

P.2

2006/11

Ver 1.1