MAX16956(2014) 查看數據表（PDF） - Maxim Integrated
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MAX16956 Datasheet PDF : 16 Pages
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MAX16956
36V, 300mA, Mini Buck Converter with
1.1µA IQ
Absolute Maximum Ratings
(Voltages Referenced to PGND)
SUP........................................................................-0.3V to +42V
EN...............................................................-0.3V to VSUP + 0.3V
BST to LX...............................................................................+6V
BST.........................................................................-0.3V to +47V
MODE, OUT/FB, RESET.......................... -0.3V to VBIAS + 0.3V
AGND....................................................................-0.3V to +0.3V
BIAS......................................................................-0.3V to +6.0V
OUT/FB Short-Circuit Duration..................................Continuous
Continuous Power Dissipation (TA = +70°C)
(derate 12.9mW/ºC above +70°C).............................1031mW
Operating Temperature Range.......................... -40°C to +125°C
Junction Temperature.......................................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s)....................................300°C
Soldering Temperature (reflow)........................................ +260ºC
Package Thermal Characteristics(Note 1)
µMAX
Junction-to-Ambient Thermal Resistance (BJA)....... 77.6°C/W
Junction-to-Case Thermal Resistance (BJC)..................... 5°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VSUP = VEN = 14V, VMODE = 0V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C, unless
otherwise noted.) (Note 2)
PARAMETER
Supply Voltage
Supply Voltage
Supply Current
UV Lockout
BIAS Regulator Voltage
BIAS Current Limit
BUCK CONVERTER
Voltage Accuracy
Output Voltage Range
FB Voltage Accuracy
FB Input Current
FB Load Regulation
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
VSUP
VSUP
ISUP
T < 500ms (Note 3)
VEN = 0V
No load, fixed 3.3V VOUT
No load, fixed 5V VOUT
No load, adjustable VOUT
VMODE = VBIAS , no load, FPWM, no
switching
3.5
36
V
42
V
0.75
3.0
1.1
3.0
µA
1.8
5.0
32
70
0.5
1
1.5
mA
VBIAS rising
Hysteresis
3.0
3.2
3.4
V
0.4
VBIAS VSUP = 5.5V to 36V (MAX16956C/F only)
5
V
10
mA
VOUT,5V VOUT = 5V
VOUT,3.3V VOUT = 3.3V
6V ≤ VSUP ≤
4.9
5.0
5.2
36V, ILOAD = 0 to
V
300mA
3.2
3.3
3.4
VOUT Adjustable output versions
1
10
V
VFB
Adjustable output versions, 6V ≤ VSUP ≤ 36V 0.98
1.0
1.03
V
IFB
VFB = 1V
0.02
µA
ΔVLOAD ILOAD = 0.3mA to 300mA
1
%
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