NCV8855BMNR2G ON Semiconductor, NCV8855BMNR2G Datasheet - Page 9

• Manufacturer Part Number: NCV8855BMNR2G
• Description: IC BUCK SYNC QUAD 40QFN
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck)r

Specifications of NCV8855BMNR2G

• Topology: Step-Down (Buck) (2), Linear (LDO) (2)
• Function: Automotive Radio and Instrument Cluster Power Supply
• Number Of Outputs: 4
• Frequency - Switching: 170kHz
• Voltage/current - Output 1: Controller
• Voltage/current - Output 2: Adjustable, 2.5A
• Voltage/current - Output 3: Controller
• W/led Driver: No
• W/supervisor: No
• W/sequencer: Yes
• Voltage - Supply: 9 V ~ 18 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 40-VFQFN Exposed Pad
• Voltage - Output: Adjustable
• Voltage - Input: 9 ~ 18 V
• Internal Switch(s): Both
• Synchronous Rectifier: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Other names: NCV8855BMNR2G; NCV8855BMNR2GOSTR

ELECTRICAL CHARACTERISTICS
HS_EN = 5 V, VOUT3 = 3.3 V, VOUT4 = 8.5 V, IOUT[1:4] = 0 A) Min/Max values are valid for the temperature range −40°C v T
150°C unless noted otherwise. Min/Max values are guaranteed by test, design or statistical correlation.
SWITCH−MODE POWER SUPPLY REGULATOR (SMPS2, VOUT2) SPECIFICATIONS
Internal Soft−start
Error Amplifier
Duty Cycle Limitations
Switching MOSFET
LOW DROPOUT LINEAR REGULATOR CONTROLLER (LDO1, VOUT3) SPECIFICATIONS
Output Voltage Regulation
Current Limit
1. Guaranteed by design, not fully tested in production.
2. Indirectly guaranteed by test coverage of other parameters.
Soft−start time
Dc gain
Gain−bandwidth product
SW_FB2 input bias current
Input offset voltage
Slew rate
COMP2 source current
COMP2 sink current
Minimum COMP2 voltage
Maximum COMP2 voltage
Ramp maximum voltage
Ramp minimum voltage
Ramp voltage amplitude
Minimum off time
Minimum pulse width
N−channel MOSFET R
Turn−on time
Turn−off time
Output voltage accuracy
Output voltage line regulation
Output voltage load regulation
Output load capacitance range
Output load capacitance ESR range
Power supply ripple rejection
Current limit threshold voltage
Parameter
DS(on)
(V
IN_SW
t
Symbol
V
t
MINOFF2
PSRR1
MINON2
C
V
RAMP2
t
OUT3
SNS1
SS2
= V
IN
= V
SYNC floating
(Note 1)
(Note 1)
SW_FB2 = 0.8 V
C
within ramp voltage levels (Note 1)
V
V
V
V
I
I
SN2 falling to SN2 rising
SN2 rising to SN2 falling,
T
SN2 → 0 V to 13.2 V, IOUT = 1 A
(inductive load), T
SN2 → 13.2 V to 0 V, IOUT = 1 A
(inductive load), T
V
NTD20P06L pass device
IOUT3 = 10 mA, 4.5 V v V
NTD20P06L pass device
1 mA v IOUT3 v 500 mA, V
NTD20P06L pass device
(Note 1)
(Note 1)
NTD20P06L pass device (Note 1)
V
COMP2
COMP2
http://onsemi.com
J
COMP2
COMP2
COMP2
COMP2
COMP2
LR_FB1
ISNS1+
= 25°C, Guaranteed at Probe
ISNS1+
= 500 mA
= 2 mA
= 2.2 V
= 3.2 V
= 2.2 V
= 1.1 V
– V
= 50 pF, ±1 mA dc load Slew rate
tied to VOUT3 directly,
= V
9
ISNS1−
ISNS1−
Conditions
J
J
= 25°C
= 25°C
= V
ISNS2+
ISNS1+
ISNS1+
= V
ISNS2−
v 5.5 V,
= 5 V,
= 13.2 V, SYS_EN = LDO_EN =
−0.25
−0.5
0.01
Min
120
1.5
1.6
1.1
0.7
3.3
2.8
1.1
1.6
70
80
−2
10
90
3
8
6
0.01
Typ
100
140
250
300
110
3.0
1.2
1.8
0.2
85
10
30
30
60
5
8
1.05
0.25
Max
500
800
200
300
360
100
130
3.2
1.3
2.0
0.5
7
8
8
8
8
2
5
J
v
MHz
Unit
V/ms
mW
mA
mA
mA
mA
mV
ms
dB
nA
mV
mF
dB
ns
ns
ns
ns
%
%
%
V
V
V
V
V
W