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MAX77816 数据表(PDF) 3 Page - Maxim Integrated Products

部件名 MAX77816
功能描述  High-Efficiency Buck-Boost Regulator with 5A Switches
PDF  26 Pages
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制造商  MAXIM [Maxim Integrated Products]
网页  https://www.maximintegrated.com/en.html
标志 MAXIM - Maxim Integrated Products

MAX77816 数据表(HTML) 3 Page - Maxim Integrated Products

  MAX77816 Datasheet HTML 1Page - Maxim Integrated Products MAX77816 Datasheet HTML 2Page - Maxim Integrated Products MAX77816 Datasheet HTML 3Page - Maxim Integrated Products MAX77816 Datasheet HTML 4Page - Maxim Integrated Products MAX77816 Datasheet HTML 5Page - Maxim Integrated Products MAX77816 Datasheet HTML 6Page - Maxim Integrated Products MAX77816 Datasheet HTML 7Page - Maxim Integrated Products MAX77816 Datasheet HTML 8Page - Maxim Integrated Products MAX77816 Datasheet HTML 9Page - Maxim Integrated Products Next Button
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(VSYS = VINBB = +3.8V, VFB_BB = VOUTBB = +3.3V, TA = -40°C to +85°C, typical values are at TA = +25°C, unless otherwise noted.)
(Note 3)
Electrical Characteristics (continued)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Load Transient Response
VOS2
VUS2
IOUT changes from 10mA to 1.5A in
15µs, L = 1µH, COUT_NOM = 47µF
(Note 4)
50
mV
Output Voltage Ramp-Up
Slew Rate
BB_RU_SR = 0 (Note 6)
20
mV/µs
BB_RU_SR = 1 (Note 6)
40
Output Voltage Ramp-down
Slew Rate
BB_RD_SR = 0 (Note 6)
5
mV/µs
BB_RD_SR = 1 (Note 6)
10
Typical Load Efficiency
ηIOUT_TYP
IOUT = 100mA (Note 4)
95
%
Peak Efficiency
ηPK
(Note 4)
97.5
%
LXBB1/2 Current Limit
ILIM_LXBB
ILIM[1:0] = 11b or
GPIO_CFG[2:0] = 010b, GPIO = high
4
5
6
A
ILIM[1:0] = 10b
3.1
ILIM[1:0] = 01b or
GPIO_CFG[2:0] = 010b, GPIO = low
1.80
ILIM[1:0] = 00b
1.15
High-Side PMOS ON
Resistance
RDSON(PMOS) ILXBB = 100mA per switch
34
mΩ
Low-Side NMOS ON
Resistance
RDSON(NMOS) ILXBB = 100mA per switch
45
mΩ
Switching Frequency
fSW
PWM mode, TA = +25°C
2.25
2.50
2.75
MHz
Turn-On Delay Time
tON_DLY
From EN asserting to LXBB switching
(Note 6)
100
µs
Soft-Start Time
tSS
IOUT = 10mA, ILIM[1:0] = 11b or 10,
or GPIO_CFG[2:0] = 010b,
GPIO = high (Note 4)
120
µs
IOUT = 10mA, ILIM[1:0] = 01b or 00,
or GPIO_CFG[2:0] = 010b, GPIO = low
(Note 4)
800
Minimum Effective Output
Capacitance
CEFF(MIN)
0A < IOUT < 3000mA
16
µF
LXBB1, LXBB2 Leakage
Current
ILK_25
VLXBB1/2 = 0V or 5.5V, VOUTBB = 5.5V,
VSYS = VINBB = 5.5V, TA = +25°C
0.1
1
µA
ILK_85
VLXBB1/2 = 0V or 5.5V, VOUTBB = 5.5V,
VSYS = VINBB = 5.5V, TA = +85°C
(Note 5)
0.2
SYS Undervoltage Lockout
Threshold
VUVLO_R
VSYS rising
2.375
2.50
2.625
V
VUVLO_F
VSYS falling
2.05
MAX77816
High-Efficiency Buck-Boost Regulator
with 5A Switches
www.maximintegrated.com
Maxim Integrated │ 3



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