LDO10C Series | 10 A DC-DC

C Class Non-Isolated DC-DC Converter

File Name: lf_ldo10.pdf Rev: (01) 25 Apr 2006

Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or

any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reli-

Absolute Maximum Ratings

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - continuous

Vin (cont)

3.0

13.8

Vdc

Vin(+) - Vin(-)

Enable

VEn (max

3.3

5.0

V

V

When Vin < 5 V

When Vin > 5 V

Pgood Voltage

VPgood (max)

3.3

5.0

V

V

When Vin < 5 V

When Vin > 5 V

Operating temperature

Top

0

70

˚C

Measured at thermal refer-

ence points, See Note 1. See

Derating curves

Storage temperature

Tstorage

-40

125

˚C

Output current

Iout (max)

10

A

All specifications are typical at nominal input Vin =5 V and 12 V, full load under any resistive load combination at 25 ˚C, unless otherwise stated.

Input Characteristics

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - operating

Vin

3.0

13.8

Vdc

Input current - no load

Iin

80

mA

Vin (min) - Vin (max), enabled

Input current - quiescent

Iin(off)

10

mA

Converter disabled

Input voltage variation

dv/dt

1.0

V/ms

Product was tested at

1.2 V/ms. Much higher dv/dt

is possible (>10 V/ms)

Turn On/Off

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - turn on

Vin (on)

2.8

Vdc

See App Note 186 to adjust

this point

Input voltage - turn off

Vin (off)

2.5

Vdc

Turn on delay - enabled,

then power applied

Tdelay

(power)

2

3

ms

With the Remote ON/OFF

signal asserted, this is the time

from when the input voltage

reaches the minimum speci-

fied operating voltage until

Vout is in regulation

Turn on delay - power

applied, then Remote ON/OFF

asserted

Tdelay

(Remote

ON/OFF)

2

3

ms

Vin = Vin(on), then Remote

ON/OFF asserted. This is

the time taken until Vout is in

regulation

Rise time

Trise

1.3

2

ms

from 10% to 90%; full resistive

load, 0 µF capacitance

2