1-Cell to 2-Cell, Low-Noise,

High-Efficiency, Step-Up DC-DC Converter

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3

ELECTRICAL CHARACTERISTICS

Falling PFI hysteresis 2%

External feedback

External feedback

CONDITIONS

V

SHDN Input High Voltage

V

SHDN Input Low Voltage

µA

1

PFO Leakage Current

V

0.4

PFO Low Output Voltage

nA

10

PFI Input Current

mV

580

642

PFI Trip Voltage

nA

10

FB Input Current

µA

3.5

Shutdown Current into BATT

µA

1

Shutdown Current into OUT

µA

8

Quiescent Current into BATT

µA

65

Quiescent Current into OUT

V-µs

5.60

11.2

K

On-Time Constant

V

5.5

Maximum Operating Input

Voltage

Ω

2.2

P-Channel On-Resistance

Ω

1.5

N-Channel On-Resistance

V

3.12

3.48

Output Voltage (Fixed Mode)

V

2.0

5.5

Output Voltage Range

(Adjustable Mode)

V

1.17

1.28

FB Set Voltage

UNITS

MIN

MAX

SYMBOL

PARAMETER

SHDN = GND or BATT

nA

10

SHDN Input Current

Note 2: Start-up is guaranteed by correlation to measurements of device parameters (i.e., switch on-resistance, on-time, off-time,

and output voltage trip point).

Note 3: Specifications to -40°C are guaranteed by design and not production tested.