LTC3716_15 datasheet(4/28 Pages) LINER

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LTC3716

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

temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VBIAS = 5V, VRUN/SS = 5V unless otherwise noted.

Note 5: Dynamic supply current is higher due to the gate charge being

delivered at the switching frequency. See Applications Information.

Note 6: Rise and fall times are measured using 10% and 90% levels. Delay

times are measured using 50% levels.

Note 7: The minimum on-time condition corresponds to the on inductor

peak-to-peak ripple current

≥40% IMAX (see Minimum On-Time

Considerations in the Applications Information section).

Note 8: Each built-in pull-up resistor attached to the VID inputs also has a

series diode to allow input voltages higher than the VIDVCC supply without

damage or clamping (see the Applications Information section).

Note 1: Absolute Maximum Ratings are those values beyond which the

life of a device may be impaired.

Note 2: The LTC3716 is guaranteed to meet performance specifications

from 0

°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: TJ is calculated from the ambient temperature TA and power

dissipation PD according to the following formula:

LTC3716EG: TJ = TA + (PD • 85°C/W)

Note 4: The LTC3716 is tested in a feedback loop that servos VITH to a

specified voltage and measures the resultant VEAIN.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

PGOOD Output

VPGL

PGOOD Voltage Low

IPGOOD = 2mA

0.1

0.3

IPGOOD

PGOOD Leakage Current

VPGOOD = 5V

±1

µA

VPG

PGOOD Trip Level, Either Controller

VEAIN with Respect to Set Output Voltage

VEAIN Ramping Negative

– 8

– 10

– 12

VEAIN Ramping Positive

Differential Amplifier/Op Amp Gain Block

ADA

Differential Amplifier Gain

VAMPMD = 0V

0.995

1.005

V/V

CMRRDA

Common Mode Rejection Ratio

0V < VCM < 5V; VAMPMD = 0V

RIN

Input Resistance

Measured at VOS+ Input; VAMPMD = 0V

Ω

VOS

Input Offset Voltage

Op Amp Mode; VCM = 2.5V, VAMPMD = 5V

VDIFFOUT = 5V; IDIFFOUT = 1mA

Input Bias Current

Op Amp Mode; VAMPMD = 5V

200

AOL

Open-Loop DC Gain

Op Amp Mode; 0.7V

≤ VDIFFOUT < 10V, VAMPMD = 5V

5000

V/mV

VCM

Common Mode Input Voltage Range

Op Amp Mode; VAMPMD = 5V

CMRROA

Common Mode Rejection Ratio

Op Amp Mode; 0V < VCM < 3V, VAMPMD = 5V

PSRROA

Power Supply Rejection Ratio

Op Amp Mode; 6V < VIN < 30V, VAMPMD = 5V

ICL

Maximum Output Current

Op Amp Mode; VDIFFOUT = 0V, VAMPMD = 5V

VOMAX

Maximum Output Voltage

Op Amp Mode; IDIFFOUT = 1mA, VAMPMD = 5V

GBW

Gain-Bandwidth Product

Op Amp Mode; IDIFFOUT = 1mA, VAMPMD = 5V

MHz

Slew Rate

Op Amp Mode; RL = 2k, VAMPMD = 5V

µs

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