Product Specification

PE99151

Page 2 of 15

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Table 2. Electrical Specifications

Parameter

Condition

Min

Typ

Max

Unit

Synchronous Frequency Range,

Fsw_range

0.1

5

MHz

Maximum Cycle-Averaged RMS

Output Current, Imax

2

A

Supply Current (Shutdown), IDDSD

1.8

3.2

mA

3.1

5.5

mA

Supply Current (No-load, 1 MHz

async), IDD0

17.5

mA

High Side On Resistance, Ron,hss

Test current = 100 mA

97

160

mΩ

Low Side On Resistance, Ron,lss

Test current = 100 mA

113

190

mΩ

Output Voltage

-1.0

0

1.0

%

-1.5

0

1.5

%

-1.5

0

1.5

%

Reference Voltage Line Regulation,

Kvi (steady state)

-0.2

0

0.2

%

Reference Voltage Load Regulation,

Kvo (steady state)

-0.25

0

0.25

%

Internal Oscillator and SYNC Capture

Oscillator Frequency, FOSC_FREQ

SYNC = GND

320

530

700

kHz

0.71

1

1.42

MHz

Internal Oscillator Duty Cycle,

FOSC_DC

46

54

%

SYNC Lock Capture Frequency,

Sync_lock

40

kHz

External Sync Duty Cycle, SYNC_DC

40

60

%

Reference Voltage Accuracy, Vref

Current Limiting and Current Mode Control Loop

Internal Current Limit Max, ILIMXINT

not min-on-time limited

2

3

4

A

Externally Set Max Current Limit

Accuracy, ILIMXEXT

not min-on-time limited

2

3

4

A

Max voltage across Rset, VMAXRSET

1.3

1.5

1.75

V

300

378

450

A/A

ICOMP cap, CICOMP

  

110

  

pF

Current compensation gain, Icomp

2.3

3

4

A/V