Datasheet
LT3582/LT3582-5/LT3582-12
3
3582512fb
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3.6V, V
SHDN
= V
IN
unless otherwise noted. (Note 3)
Switching Regulator Characteristics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
T
ON_MAX
Maximum Switch On-Time Inverting and Boost Switches 10 µs
I
LIMIT_P
Boost Switch Current Limit
l
285 350 430 mA
I
LIMIT_N
Inverting Switch Current Limit
l
490 600 720 mA
R
ON_P
Boost Switch On-Resistance I
SWP
= 200mA 500 mΩ
R
ON_N
Inverting Switch On-Resistance I
SWN
= –400mA 560 mΩ
I
OFF_P
Boost Switch Leakage Current into
SWP Pin
V
SWP
= 5V 0.01 0.5 µA
I
OFF_N
Inverting Switch Leakage Current Out of
SWN Pin
V
IN
= 5.0, V
SWN
= 0.0 0.01 1 µA
R
ON_DIS
Output Disconnect Switch
On-Resistance
V
CAPP
= 10V, RAMPP > 1.4V 1.4 Ω
I
LIMIT_DIS
Output Disconnect Current Limit
l
124 155 186 mA
I
VOUTP_PDS
V
OUTP
Power-Down Discharge Current V
OUTP
= 8V 2.4 4.8 8.8 mA
I
CAPP_PDS
CAPP Power-Down Discharge Current CAPP = 8V 1.2 2.4 4.4 mA
I
VOUTN_PDS
V
OUTN
Power-Down Discharge Current V
OUTN
= –8V –1.4 –2.8 –4.2 mA
T
START-UP
Confi guration Start-Up Delay V
IN
> V
IN_MIN
and SHDN > V
SHDN_VIH
to I
2
C
Enabled and Power-Up Sequencing Start
l
64 128 s
Programmable Output Characteristics (Note 6)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
VOUTP
Positive Output Voltage LT3582-5
LT3582-12
l
l
4.95
11.88
5
12
5.05
12.1
V
V
N_V
OUTP
Positive V
OUTP
Resolution (Note 2) 9 Bits
V
VOUTP_LSB
V
OUTP
LSB (Note 2) 25 mV
V
VOUTP_FS
V
OUTP
Full-Scale Voltage (Note 2) Code = BFh, V
PLUS
= 1
l
12.56 12.775 12.94 V
V
VOUTP_MIN
V
OUTP
Minimum Voltage (Note 2) Code = 00h, V
PLUS
= 0
l
3.152 3.20 3.248 V
V
VOUTP_LR
V
OUTP
Line Regulation Code = BFh, 2.575 < V
IN
< 5.5 –0.02 %/V
V
VOUTN
Negative Output Voltage LT3582-5
LT3582-12
l
l
–5.075
–12.1
–5
–12
–4.925
–11.868
V
V
N_V
OUTN
Negative V
OUTN
Resolution (Note 2) 8 Bits
V
VOUTN_LSB
V
OUTN
LSB (Note 2) –50 mV
V
VOUTN_FS
V
OUTN
Full-Scale Voltage (Note 2) Code = FFh
l
–14.2 –13.95 –13.7 V
V
VOUTN_MIN
V
OUTN
Minimum Voltage (Note 2) Code = 00h
l
–1.23 –1.205 –1.18 V
V
VOUTN_LR
V
OUTN
Line Regulation Code = FFh, 2.575 < V
IN
< 5.5 –0.01 %/V
INL_V
OUTP
V
OUTP
Integral Nonlinearity (Notes 2, 4)
l
±0.6 LSB
DNL_V
OUTP
V
OUTP
Differential Nonlinearity (Notes 2, 4)
l
±0.6 LSB
INL_V
OUTN
V
OUTN
Integral Nonlinearity (Note 2)
l
±0.85 LSB
DNL_V
OUTN
V
OUTN
Differential Nonlinearity (Note 2)
l
±0.85 LSB
I
RAMP00
RAMPP/RAMPN Pull-Up Current
IRMP Code = 00
V
RAMPP
= 0.0V
V
RAMPN
= 0.0V
l
0.7 1.0 1.3 µA
I
RAMP01
RAMPP/RAMPN Pull-Up Current (Note 2)
IRMP Code = 01
V
RAMPP
= 0.0V
V
RAMPN
= 0.0V
l
1.4 2.0 2.6 µA