Unless otherwise specified, V

over the specified operating junction temperature range, (-20˚C to +125˚C, if not otherwise specified). Specifications appearing

in plain type are measured using low duty cycle pulse testing with T

by design, test, or statistical analysis.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

I

sk_uvdelay

UV_DELAY Sink Current

UV-DELAY = 0.4V

0.2

0.48

1.2

mA

V

UVDelay

UV_DELAY Threshold

Voltage

2.3

V

V

UVP

FB1, FB2, Under

Voltage Protection Latch

Threshold

As a percentage of nominal output

voltage (falling edge)

75

80

86

%

Hysteresis

4%

V

OVP

V

Shutdown Latch

Threshold

As a percentage measured at V

V

FB2

107

113

122

%

V

pwrbad

Regulator Window

Detector Thresholds

(PGOOD1 from High to

Low)

As a percentage of output voltage

86.5

90.3

94.5

%

V

pwrgd

Regulator Window

Detector Thresholds

(PGOOD1 from Low to

High)

91.5

94

97.0

%

S

wx_R

SW1, SW2

ON-Resistance

V

420

480

535

Ω

Gate Drive

I

CBOOT

CBOOTx Leakage

Current

V

10

nA

I

SC_DRV

HDRVx and LDRVx

Source Current

V

HDRVx=LDRVx=2.5V

0.5

A

I

sk_HDRV

HDRVx Sink Current

V

HDRVX = 2.5V

0.8

A

I

sk_LDRV

LDRVx Sink Current

V

LDRVX = 2.5V

1.1

A

R

HDRV

HDRV1 & 2 Source

On-Resistance

V

V

3.1

Ω

HDRV1 & 2 Sink

On-Resistance

1.5

Ω

R

LDRV

LDRV1 & 2 Source

On-Resistance

V

V

V

3.1

Ω

LDRV1 & 2 Sink

On-Resistance

1.1

Ω

Oscillator

F

osc

Oscillator Frequency

260

300

340

kHz

-40˚C to 125˚C

257.5

340

Don_max

Maximum On-Duty Cycle

V

HDRV1 and HDRV2

96

98

%

-40˚C to 125˚C

95.64

T

on_min

Minimum On-Time

166

ns

SS

OT_delta

HDRV1 and HDRV2

Delta On Time

ON/SS1 = ON/SS2 = 2V

20

150

ns

Error Amplifier

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