Step-Up/Step-Down DC-DC Converter for 1-Cell Lithium-Ion Batteries

Impala Linear Corporation

4

(408) 574-3939

www.impalalinear.com

Jan 1999

ILC6360 1.1

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Battery input current in shutdown

(short circuit)

True load disconnect

1

2

µA

Switch on resistance

N-Channel MOSFET

P-Channel MOSFET

400

750

m

Ω

Oscillator frequency

255

300

345

kHz

External clock frequency range (sync)

150

500

kHz

External clock pulse width

Note 4

200

ns

External clock rise/fall time

Note 4

100

ns

LBI input threshold

1.175

1.150

1.250

1.325

1.350

V

Input leakage current

200

nA

LBI hold time

Note 5

120

100

ms

LBO output voltage low

0.4

V

LBO output leakage current

1

2

µA

Shutdown input voltage low

0.4

V

Shutdown input voltage high

1

6

V

Sync input voltage low

0.4

V

Sync input voltage high

1

6

V

POK output voltage low

0.4

V

POK output voltage high

6

V

POK output leakage current

Force 6V at pin 5

1

2

µA

POK threshold

V

POK hysteresis

50

mV

of figure 2 for ILC6360-36 and test circuit of figure 9 for ILC6360-ADJ. BOLDFACE type indicates limits that apply over the full oper-

ating temperature range. Note 2.

Note 1. Absolute maximum ratings indicate limits which, when exceeded, may result in damage to the component. Electrical specifications do not apply when operating the

device outside its rated operating conditions.

Note 2. Specified min/max limits are production tested or guaranteed through correlation based on statistical control methods. Measurements are taken at constant junction

temperature as close to ambient as possible using low duty pulse testing.

Note 4. Guaranteed by design.

Note 5. In order to get a valid low-battery-output (LBO) signal, the input voltage must be lower than the low-battery-input (LBI) threshold for a duration greater than the low

Electrical Characteristics ILC6360CIR-36 and ILC6360CIR-ADJ (Continued)