LTM4615EV-PBF(RevB) Ver la hoja de datos (PDF) - Linear Technology

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LTM4615EV-PBF
(Rev.:RevB)

Triple Output, Low Voltage DC/DC µModule Regulator

Linear Technology 

LTM4615

Electrical Characteristics The l denotes the specifications which apply over the full internal

operating temperature range (Note 2), otherwise specifications are at TA = 25°C, VIN = 5V, LDO_IN = 1.2V unless otherwise noted.

Per Typical Application Figure 12.

SYMBOL

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

Switching Regulator Section: per Channel

VIN(DC)

VOUT(DC)

VOUT(DC)

Input DC Voltage Range

Output DC Voltage Range

Output Voltage

l 2.375

5.5

V

l 0.8

5.0

V

CIN = 22µF, COUT = 100µF, RFB = 5.76k,

VIN = 2.375V to 5.5V, IOUT = 0A to 4A (Note 6)

0°C ≤ TJ ≤ 125°C

1.460 1.49 1.512

V

l 1.45 1.49 1.512

V

VIN(UVLO)

Undervoltage Lockout Threshold IOUT = 0A

1.6

2

2.3

V

IINRUSH(VIN)

Input Inrush Current at Start-Up

IOUT = 0A, CIN = 22µF, COUT = 100µF, VOUT = 1.5V,

VIN = 5.5V

0.35

A

IQ(VIN)

Input Supply Bias Current

VIN = 2.375V, VOUT = 1.5V, Switching Continuous

VIN = 5.5V, VOUT = 1.5V, Switching Continuous

Shutdown, RUN = 0, VIN = 5V

28

mA

45

mA

7

12

µA

IS(VIN)

Input Supply Current

VIN = 2.375V, VOUT = 1.5V, IOUT = 4A

VIN = 5.5V, VOUT = 1.5V, IOUT = 4A

3.2

A

1.48

A

IOUT(DC)

Output Continuous Current Range VIN = 5.5V, VOUT = 1.5V (Note 6)

0

4

A

∆VOUT(LOAD + LINE) Load and Line Regulation Accuracy VOUT = 1.5V, 0A to 4A (Note 6)

VOUT

VIN = 2.375V to 5.5V

±1.0 ±1.30

%

l

±1.3 ±1.6

%

VOUT(AC)

fs

Output Ripple Voltage

Output Ripple Voltage Frequency

IOUT = 0A, COUT = 100µF

VIN = 5V, VOUT = 1.5V

IOUT = 4A, VIN = 5V, VOUT = 1.5V

12

mVP-P

1.25

MHz

∆VOUT(START)

Turn-On Overshoot

tSTART

Turn-On Time

COUT = 100µF, VOUT = 1.5V, RUN/SS = 10nF,

IOUT = 0A

VIN = 3.3V

VIN = 5V

COUT = 100µF, VOUT = 1.5V, IOUT = 1A Resistive

Load, TRACK = VIN and RUN/SS = Float

VIN = 5V

20

mV

20

mV

0.5

ms

∆VOUT(LS)

Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load,

COUT = 100µF, VIN = 5V, VOUT = 1.5V

25

mV

tSETTLE

Settling Time for Dynamic Load

Step

Load: 0% to 50% to 0% of Full Load,

VIN = 5V, VOUT = 1.5V

10

µs

IOUT(PK)

Output Current Limit

COUT = 100µF, VIN = 5V, VOUT = 1.5V

8

A

VFB

Voltage at FB Pin

IOUT = 0A, VOUT = 1.5V

0.790 0.8 0.807

V

l 0.786 0.8 0.809

V

IFB

VRUN

ITRACK

VTRACK(OFFSET)

VTRACK(RANGE)

RFBHI

∆VPGOOD

RPGOOD

RUN Pin On/Off Threshold

TRACK Pin Current

Offset Voltage

TRACK = 0.4V

Tracking Input Range

Resistor Between VOUT and FB Pins

PGOOD Range

PGOOD Resistance

Open-Drain Pull-Down

0.2

µA

0.6 0.75 0.9

V

0.2

µA

30

mV

0

0.8

V

4.96 4.99 5.02

kΩ

±7.5

%

90

150

Ω

For more information www.linear.com/LTM4615

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