NCP1597AMNTWG ONSEMI [ON Semiconductor], NCP1597AMNTWG Datasheet - Page 4

• Manufacturer Part Number: NCP1597AMNTWG
• Description: 1 MHz, 2.0 A Synchronous Buck Regulator
• Manufacturer: ONSEMI [ON Semiconductor]

ELECTRICAL CHARACTERISTICS
(V
FEEDBACK VOLTAGE
PWM
PULSE−BY−PULSE CURRENT LIMIT
OSCILLATOR
MOSFET
ENABLE (NCP1597A)
SOFT−START
THERMAL SHUTDOWN
2. Guaranteed by design. Not production tested.
V
V
UVLO Hysteresis
V
V
V
Reference Voltage
Feedback Input Bias Current
Feedback Voltage Line Regulation
Maximum Duty Cycle (Regulating)
Minimum Controllable ON Time (Note 2)
Pulse−by−Pulse Current Limit (Regulation)
Pulse−by−Pulse Current Limit (Soft−Start)
Oscillator Frequency
High Side MOSFET ON Resistance
High Side MOSFET Leakage (Note 2)
Low Side MOSFET ON Resistance
Low Side MOSFET Leakage (Note 2)
EN HI Threshold
EN LO Threshold
EN Hysteresis
EN Pullup Current
Soft−Start Ramp Time
Hiccup Timer
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
in
CC
CC
CCP
in
in
Input Voltage Range
Shutdown Supply Current (Note 2)
= 4.0 V − 5.5 V, V
UVLO Threshold
Quiescent Current
Quiescent Current
Parameter
out
= 1.2 V, T
J
= +25°C for typical value; −40°C < T
Symbol
I
I
I
ENLO
I
inVCCP
QSHDN
R
R
R
R
ENHI
LIMSS
inVCC
F
V
I
V
I
t
LIM
DS(on)
DS(on)
DS(on)
DS(on)
SS
FB
SW
HS
HS
ref
LS
LS
in
http://onsemi.com
V
V
in
in
= 5 V,V
= 5 V,V
I
I
DS
DS
4
V
V
V
EN
EN
= 100 mA, V
= 100 mA, V
Test Conditions
in
FB
FB
F
J
= 4.0 V to 5.5 V
= 0 V, V
= 0 V, V
V
SW
< 85°C for min/max values unless noted otherwise)
= 1.5 V, (No Switching)
= 1.5 V, (No Switching)
EN = 0 V
FB
= 1 MHz
= 0.8 V
SW
SW
GS
GS
= 0 V
= 5 V
= 5 V
= 5 V
0.788
0.87
Min
4.0
3.2
2.7
4.0
1.4
83
0.800
0.06
Typ
275
140
200
185
3.5
1.7
1.8
3.9
5.3
1.0
1.4
1.0
2.0
25
10
85
50
90
30
0.812
Max
1.13
100
200
125
5.5
3.8
2.0
3.0
4.3
6.1
0.4
3.0
10
10
MHz
Unit
%/V
mW
mW
mV
mA
mV
ms
ms
mA
mA
nA
mA
mA
mA
°C
°C
ns
%
V
V
V
A
A
V
V