ISL9305IRTWLNCZ-T【PDF 6/17 页】IC REG QD BUCK/LINEAR 16TQFN

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Sheet目录40

2页 3页 4页 5页 [6页]7页 8页 9页 10页

ISL9305

FN7605.1

August 15, 2011

Maximum Output Current

800

P-Channel MOSFET ON-resistance

= 3.6V, I

= 200mA

0.14

0.2

= 2.3V, I

= 200mA

0.24

0.40

N-Channel MOSFET ON-resistance

= 3.6V, I

= 200mA

0.11

0.2

= 2.3V, I

= 200mA

0.18

0.34

P-Channel MOSFET Peak Current Limit

1.075

1.3

1.6

SW Maximum Duty Cycle

100

SW Leakage Current

= 5.5V

0.005

礎

PWM Switching Frequency

2.6

3.0

3.4

MHz

SW Minimum ON-time

VFB = 0.75V

Bleeding Resistor

115

Output Low Voltage

Sinking 1mA, FB1 = FB2 = 0.7V

0.25

Rising Delay Time

Based on 1ms programmed nominal delay

time

0.6

1.1

1.8

Falling Delay Time

Based on 1ms programmed nonimal delay

time

祍

PG Pin Leakage Current

PG = VINDCD1 = VINDCD2 = 3.6V

0.005

0.1

礎

PG Low Rising Threshold

Percentage of nominal regulation voltage

PG Low Falling Threshold

Percentage of nominal regulation voltage

PG High Rising Threshold

Percentage of nominal regulation voltage

112

PG High Falling Threshold

Percentage of nominal regulation voltage

109

LDO1 AND LDO2

VINLDO1, VINLDO2 Supply Voltage

No higher than VINDCD1

1.5

5.5

VINLDO1, VINLDO2 Undervoltage

Lock-out Threshold

UVLO

VINDCD1 = 2.3V, Rising

1.41

1.46

VINDCD1 = 2.3V, Falling

1.33

1.37

Internal Peak Current Limit

350

425

540

Dropout Voltage

= 300mA, VO d 2.1V

125

250

= 300mA, 2.1V < VO d 2.8V

100

200

= 300mA, VO > 2.8V

170

Power Supply Rejection Ratio

= 300mA @ 1kHz, V

= 3.6V, VO = 2.6V,

= +25癈

Output Voltage Noise

= 4.2V, I

= 10mA, T

= +25癈, BW = 10Hz

to 100kHz

礦

RMS

NOTE:

6. Parameters with MIN and/or MAX limits are 100% tested at +25癈, unless otherwise specified. Temperature limits established by characterization

and are not production tested.

Electrical Specifications Unless otherwise noted, all parameter limits are guaranteed over the recommended operating conditions

and the typical specifications are measured at the following conditions: T

= +25癈, VINDCD1 = 3.6V, VINDCD2 = 3.3V. For LDO1 and LDO2,

VINLDOx = VOLDOx + 0.5V to 5.5V with VINLDOx always no higher than VINDCD1, L

= L

= 1.5礖, C

= 10礔, C

= C

= 4.7礔, C

= C

1礔, I

OUT

= 0A for DCD1, DCD2, LDO1 and LDO2 (see Figure 1 on page 1 for more details). Boldface limits apply over the operating temperature

range, -40癈 to +85癈. (Continued)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

(Note 6)

TYP

MAX

(Note 6)

UNIT

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