LTC3899_15 Datasheet, PDF (3/38 Pages) Linear Technology – 60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller

LTC3899
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3899EFE#PBF
LTC3899EFE#TRPBF
LTC3899FE
38-Lead Plastic TSSOP
–40°C to 125°C
LTC3899IFE#PBF
LTC3899IFE#TRPBF
LTC3899FE
38-Lead Plastic TSSOP
–40°C to 125°C
LTC3899HFE#PBF
LTC3899HFE#TRPBF
LTC3899FE
38-Lead Plastic TSSOP
–40°C to 150°C
LTC3899MPFE#PBF
LTC3899MPFE#TRPBF LTC3899FE
38-Lead Plastic TSSOP
–55°C to 150°C
LTC3899EUHF#PBF
LTC3899EUHF#TRPBF 3899
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3899IUHF#PBF
LTC3899IUHF#TRPBF 3899
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 125°C
LTC3899HUHF#PBF
LTC3899HUHF#TRPBF 3899
38-Lead (5mm × 7mm) Plastic QFN
–40°C to 150°C
LTC3899MPUHF#PBF
LTC3899MPUHF#TRPBF 3899
38-Lead (5mm × 7mm) Plastic QFN
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
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 The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T_A = 25°C. (Note 2) V_BIAS = 12V, V_RUN1,2,3 = 5V, V_EXTVCC = 0V, V_DRVSET =
0V, VPRG3 = Float unless otherwise noted.
SYMBOL
V_BIAS
V_FB1,2
V_FB3
I_FB1,2
I_FB3
V_REFLNREG
V_LOADREG
g_m1,2,3
PARAMETER
Bias Input Supply Operating Voltage Range
Buck Regulated Feedback Voltage
CONDITIONS
(Note 4) ITH1,2 Voltage = 1.2V
0°C to 85°C
Boost Regulated Feedback Voltage
Buck Feedback Current
Boost Feedback Current
Reference Voltage Line Regulation
Output Voltage Load Regulation
Transconductance Amplifier g_m
(Note 4) ITH3 Voltage = 1.2V
VPRG3 = FLOAT
VPRG3 = 0V
VPRG3 = INTV_CC
(Note 4)
(Note 4)
VPRG3 = FLOAT
VPRG3 = 0V
VPRG3 = INTV_CC
(Note 4) V_BIAS = 4.5V to 60V
(Note 4) Measured in Servo Loop,
∆ITH Voltage = 1.2V to 0.7V
(Note 4) Measured in Servo Loop,
∆ITH Voltage = 1.2V to 2V
(Note 4) ITH1,2,3 = 1.2V, Sink/Source 5µA
MIN TYP MAX UNITS
4.5
60
V
0.792 0.800 0.808
V
l 0.788 0.800 0.812
V
l 1.182 1.200 1.218
V
l 9.78 10.00 10.22
V
l 11.74 12.00 12.26
V
–2 ±50
nA
±0.01 ±0.05
µA
4
6
µA
5
7
µA
0.002 0.02
%/V
l
0.01 0.1
%
l
–0.01 –0.1
%
2
mmho
3899f
For more information www.linear.com/LTC3899
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