CDH2D09 datasheet(10/44 Pages) MAXIM

10 / 44 page

PMIC with Integrated Charger and

Smart Power Selector for Handheld Devices

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PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Line Regulation

PWM mode (Note 9)

%/D

p-Channel Current-Limit

Threshold

0.555

0.615

0.675

Skip Mode Transition Current

(Note 10)

n-Channel Zero-Crossing

Threshold

p-Channel On-Resistance

VPV3 = 4V, ILX3 = 180mA

230

460

n-Channel On-Resistance

VPV3 = 4V, ILX3 = 180mA

120

210

Maximum Duty Cycle

100

Minimum Duty Cycle

PWM mode

12.5

Internal Oscillator Frequency

1.8

2.0

2.2

MHz

Internal Discharge Resistance in

Shutdown

EN = low, resistance from LX3 to PG3

0.5

1.0

2.0

REG4—LINEAR REGULATOR

PV4 Operating Range

VPV4

1.7

VSYS

PV4 Undervoltage Lockout

Threshold

VPV4 rising, 100mV hysteresis

1.55

1.60

1.65

FB4 Voltage

No load

0.582

0.600

0.618

TA = +25°C

-50

-5

+50

FB4 Leakage Current

VFB4 = 0.6V

TA = +85°C

-5

PV4 to OUT4, VPV4 = 3.3V

0.45

Drop-Out Resistance

PV4 to OUT4, VPV4 = 2.0V

0.75

1.8

VFB4 = 0.54V

200

230

265

Current Limit

VFB4 = 0V

235

Output Noise

10Hz to 100kHz;

COUT4 = 3.3µF, IOUT4 = 10mA, VPV4 = 2V,

VOUT4 set for 1.8V

120

µVRMS

f = 1kHz, IOUT4 = 10mA, VPV4 = 2V,

VOUT4 set for 1.8V

PSRR

f = 10kHz, IOUT4 = 10mA, VPV4 = 2V,

VOUT4 set for 1.8V

Internal Discharge Resistance in

Shutdown

EN = low, resistance from OUT4 to AGND

0.5

1.0

2.0

ELECTRICAL CHARACTERISTICS (continued)

(DC, USB, BVSET, UOK, DOK, LX_ unconnected; VTHM = VL/2, VPG_ = VAGND = 0V, VBAT = 4V, CEN = low, USUS = low, EN = high,

VPEN1 = VPEN2 = 3.3V, VPWM = 0V, COUT4 = 1µF, COUT5 = 1µF, CSYS = 10µF, PV1 = PV2 = PV3 = PV4 = PV5 = SYS, RDISET = 3kΩ,

RCISET = 3kΩ, CVL = 0.1µF, CCT = 0.15µF, CBP = 0.01µF, VFB1 = 1.1V, VFB2 = 1.1V, VFB3 = 1.1V, TA = -40°C to +85°C, unless other-

wise noted.) (Note 2)

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