Datasheet

LTC3816
3
3816f
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3816EFE#PBF LTC3816EFE#TRPBF LTC3816FE 38-Lead Plastic eTSSOP –40°C to 125°C
LTC3816IFE#PBF LTC3816IFE#TRPBF LTC3816FE 38-Lead Plastic eTSSOP –40°C to 125°C
LTC3816EUHF#PBF LTC3816EUHF#TRPBF 3816
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3816IUHF#PBF LTC3816IUHF#TRPBF 3816
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating junction temperature ranges.
*The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
elecTrical characTerisTics
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Input and INTV
CC
Linear Regulator
V
IN
V
IN
Supply Voltage Range V
INTVCC
> V
UVLO
l
4.5 36 V
I
VIN
V
IN
Supply Current
Normal Mode
Shutdown
V
BOOST
= V
INTVCC
, f
OSC
= 400kHz (Note 4)
VR
ON
= 0V
11
27 100
mA
µA
INTV
CC
Internal V
CC
Voltage
l
4.9 5.2 5.5 V
V
INTVCC(LINE)
Line Regulation 7.5V < V
IN
< 36V ±1.0 %
V
INTVCC(LOAD)
Load Regulation Load = 0mA to 20mA –0.25 –1.0 %
V
EXTVCC
EXTV
CC
Switchover Voltage EXTV
CC
Ramping Positive 4.25 4.50 4.75 V
V
EXTVCC(HYS)
EXTV
CC
Hysteresis 0.4 V
V
EXTVCC(DROP)
EXTV
CC
Voltage Drop Load = 20mA, V
EXTVCC
= 5V 40 100 mV
V
UVLO
INTV
CC
Undervoltage Reset INTV
CC
Ramping Positive 3.7 3.9 4.1 V
Undervoltage Hystersis 0.4 V
Switcher Control Loop
V
CC(CORE)
V
CC(CORE)
= (V
CC(SEN)
– V
SS(SEN)
) V
CC(CORE)
> 0.75V (Note 5)
0.5V ≤ V
CC(CORE)
≤ 0.75V (Note 5)
0.3V ≤ V
CC(CORE)
< 0.5V (Note 5)
l
l
l
±0.75
±6
±10
%
mV
mV
∆V
CC(CORE)
V
CC(CORE)
Voltage Line Regulation V
IN
= 7.5V to 36V (Note 5) ±0.002 %/V
A
EA
Error Amplifier DC Gain No load 80 dB
f
BW
Error Amplifier Unity-Gain Bandwidth (Note 6) 20 MHz
I
COMP
Error Amplifier Output Source Current
Error Amplifier Output Sink Current
V
COMP
= 0V
V
COMP
= 5V 5
–1.5 mA
mA
I
VCC(SEN)
V
CC(SEN)
Input Current V
ISENN
= V
CC(SEN)
, 0V ≤ V
CC(SEN)
≤ 1.5V ±30 µA
I
VSS(SEN)
V
SS(SEN)
Input Current V
SS(SEN)
= 0V –60 µA
I
VFB
V
FB
Input Current 0V ≤ V
FB
≤ 2V ±0.1 µA
I
ITCFB
I
TCFB
Input Current 0V ≤ V
ITCFB
≤ 1.5V ±0.1 µA
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, BSOURCE = EXTV
CC
= 0V, VR
ON
= 5V, unless
otherwise noted. (Notes 2, 3)