LTC3723-2 datasheet(2/20 Pages) LINER

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LTC3723-1/LTC3723-2

372312f

VCC to GND (Low Impedance Source) .......– 0.3V to 10V

(Chip Self-Regulates at 10.3V)

UVLO to GND ............................................. – 0.3V to VCC

All Other Pins to GND

(Low Impedance Source) .........................– 0.3V to 5.5V

VCC (Current Fed) ................................................. 40mA

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 9.5V unless otherwise noted.

VREF Output Current ............................... Self-Regulated

Operating Temperature (Notes 5,6)

LTC3723E ........................................... – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 125°C

Lead Temperature (Soldering, 10sec)................... 300

°C

TJMAX = 125°C, θJA = 100°C/W

ORDER PART NUMBER

GN PART MARKING

Consult LTC Marketing for parts specified with wider operating temperature ranges.

LTC3723EGN-1

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF

Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/

37231

TOP VIEW

GN PACKAGE

16-LEAD PLASTIC SSOP

VREF

SDRB

SDRA

DRVB

VCC

DRVA

GND

SPRG

UVLO

RLEB

COMP

DPRG

TJMAX = 125°C, θJA = 100°C/W

ORDER PART NUMBER

GN PART MARKING

LTC3723EGN-2

37232

TOP VIEW

GN PACKAGE

16-LEAD PLASTIC SSOP

VREF

SDRB

SDRA

DRVB

VCC

DRVA

GND

SPRG

UVLO

DPRG

COMP

RAMP

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Supply

VCCUV

VCC Undervoltage Lockout

Measured on VCC

10.25

10.7

VCCHY

VCC UVLO Hysteresis

Measured on VCC

3.8

4.2

ICCST

Start-Up Current

VCC = VUVLO – 0.3V

●

145

230

µA

ICCRN

Operating Current

No Load on Outputs

VSHUNT

Shunt Regulator Voltage

Current into VCC = 10mA

10.3

10.8

RSHUNT

Shunt Resistance

Current into VCC = 10mA to 17mA

1.4

3.5

Ω

SUVLO

System UVLO Threshold

Measured on UVLO Pin, 10mA into VCC

4.8

5.0

5.2

SHYST

System UVLO Hysteresis Current

Current Flows Out of UVLO Pin, 10mA into VCC

8.5

11.5

µA

Pulse Width Modulator

ROS

Ramp Offset Voltage

Measured on COMP, RAMP = 0V

0.65

IRMP

Ramp Discharge Current

RAMP = 1V, COMP = 0V, CT = 4V, 3723-1 Only

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