LT3582 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LT3582

I2C Programmable Boost and Single Inductor Inverting DC/DC Converters with OTP

Linear Technology 

LT3582/LT3582-5/LT3582-12

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

temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, VSHDN = VIN unless otherwise noted. (Note 3)

Switching Regulator Characteristics

SYMBOL

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

ILIMIT_N

Inverting Switch Current Limit

l 490

600

720

mA

RON_P

Boost Switch On Resistance

ISWP = 200mA

500

mΩ

RON_N

Inverting Switch On Resistance

ISWN = –400mA

560

mΩ

IOFF_P

Boost Switch Leakage Current into VSWP = 5V

SWP pin

0.01

0.5

μA

IOFF_N

Inverting Switch Leakage Current out VIN = 5.0, VSWN = 0.0

of SWN pin

0.01

1

μA

RON_DIS

Output Disconnect Switch On

Resistance

VCAPP = 10V, RAMPP > 1.4V

1.4

Ω

ILIMIT_DIS

Output Disconnect Current Limit

l 124

155

186

mA

IVOUTP_PDS

VOUTP Power-Down Discharge

Current

VOUTP = 8V

2.4

4.8

8.8

mA

ICAPP_PDS

CAPP Power-Down Discharge

Current

CAPP = 8V

1.2

2.4

4.4

mA

IVOUTN_PDS

TSTARTUP

VOUTN Power-Down Discharge

Current

VOUTN = –8V

–1.4 –2.8 –4.2

mA

Configuration Startup Delay

VIN> VIN_MIN & SHDN > VSHDN_VIH to I2C

l

Enabled and Power-up Sequencing Start

64

128

μs

Programmable Output Characteristics6

SYMBOL

PARAMETER

VVOUTP

Positive Output Voltage

N_VOUTP

VVOUTP_LSB

VVOUTP_FS

VVOUTP_MIN

VVOUTP_LR

VVOUTN

Positive VOUTP Resolution2

VOUTP LSB2

VOUTP Full Scale Voltage2

VOUTP Minimum Voltage2

VOUTP Line Regulation

Negative Output Voltage

N_VOUTN

VVOUTN_LSB

VVOUTN_FS

VVOUTN_MIN

VVOUTN_LR

INL_VOUTP

DNL_VOUTP

INL_VOUTN

DNL_VOUTN

IRAMP00

IRAMP01

Negative VOUTN Resolution2

VOUTN LSB2

VOUTN Full Scale Voltage2

VOUTN Minimum Voltage2

VOUTN Line Regulation

VOUTP Integral Nonlinearity2, 4

VOUTP Differential Nonlinearity2, 4

VOUTN Integral Nonlinearity2

VOUTN Differential Nonlinearity2

RAMPP/RAMPN Pull Up Current

IRMP Code = 00

RAMPP/RAMPN Pull Up Current2

IRMP Code = 01

CONDITIONS

LT3582-5

LT3582-12

Code = BFh, VPLUS = 1

Code = 00h, VPLUS = 0

Code = BFh, 2.575 < VIN < 5.5

LT3582-5

LT3582-12

Code = FFh

Code = 00h

Code = FFh, 2.575 < VIN < 5.5

VRAMPP = 0.0V

VRAMPN = 0.0V

VRAMPP = 0.0V

VRAMPN = 0.0V

MIN TYP MAX UNITS

l 4.95

5

5.05

V

l 11.88

12

12.1

V

9

Bits

25

mV

l 12.56 12.775 12.94

V

l 3.152 3.20 3.248

V

–0.02

%/V

l –5.075 –5 –4.925

V

l –12.1 –12 –11.868

V

8

Bits

–50

mV

l –14.2 –13.95 –13.7

V

l –1.23 –1.205 –1.18

V

–0.01

%/V

l

±0.6

LSB

l

±0.6

LSB

l

±0.85

LSB

l

±0.85

LSB

l 0.7

1.0

1.3

μA

l 1.4

2.0

2.6

μA

3582512f

3

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