NCP1500
ELECTRICAL CHARACTERISTICS (V IN = 3.6 V, V O = 1.5 V, T A = 25 ° C, Fsyn = 600 kHz 50% Duty Cycle sinewave with V H = 2.0 V
and V L = 0 V for PWM mode; T A = ? 40 to 85 ° C for Min/Max values, unless otherwise noted.)
Characteristic
Input Voltage Range
Main FET Leakage Current (Pins 5 to 4) T A = 25 ° C
Main FET Leakage Current (Pins 5 to 4) T A = ? 40 ° C to 85 ° C
Symbol
V IN
I LEAK
Min
2.7
?
?
Typ
?
0.06
?
Max
5.4
0.3
10
Unit
V
m A
Mode Selection Pin
SYN “H” Input Voltage
SYN “L” Input Voltage
SYN “H” Input Current
SYN “L” Input Current
External Synchronization Frequency
V SYNH
V SYNL
I SYNH
I SYNL
F SYNC
1.3
?
?
? 0.5
270
?
?
0
0
?
?
1.1
0.5
?
630
V
V
m A
m A
kHz
Output Level Selection Pins
CB “H” Input Voltage Threshold
CB “L” Input Voltage Threshold
CB “H” Input Current
CB “L” Input Current
V CBH
V CBL
I CBH
I CBL
0.90
?
?
?
?
?
0.1
0
?
0.63
?
?
V
V
m A
m A
Shutdown Pin
SHD “H” Input Voltage Threshold
SHD “L” Input Voltage Threshold
SHD “H” Input Current
SHD “L” Input Current
V SHDH
V SHDL
I SHDH
I SHDL
0.59
?
?
?
?
?
0.1
0
?
0.26
?
?
V
V
m A
m A
PWM Mode
Output Voltage (I OUT = 35 mA, T A = 25 ° C)
CB0, CB1 = (H, H)
CB0, CB1 = (H, L)
CB0, CB1 = (L, L)
CB0, CB1 = (L, H)
Line Regulation, I out = 100 mA
3.0 to 3.6 V
3.0 to 4.2 V
Load Regulation
50 to 120 mA
20 to 200 mA
Minimum On ? Time
Internal PFET ON ? Resistance (I LX = 400 mA, V IN = 2.0 V)
Main Output Switch Current Limit
V OUT0
D V out0
D V out0
TON MIN
R DS(ON)_P
I LIM
0.941
1.235
1.425
1.710
?
?
?
?
?
?
?
0.99
1.30
1.50
1.80
1.0
2.0
1.0
13
210
0.65
800
1.050
1.365
1.575
1.890
?
?
?
?
?
1.2
?
V
mV
mV
nsec
W
mA
Linear Regulator Mode (Lx shorted to Vo)
Output Voltage (I out = 0 mA, T A = 25 ° C)
CB0, CB1 = (H, H)
CB0, CB1 = (H, L)
CB0, CB1 = (L, L)
CB0, CB1 = (L, H)
Startup Current Load in Linear Mode
V out0
ISTART LIN
0.941
1.235
1.425
1.710
80
0.99
1.30
1.50
1.80
?
1.050
1.365
1.575
1.890
?
V
mA
Overvoltage Protection
Output Overvoltage Threshold in PWM Mode
VO PFM
?
+5.0
+10
%
Total Device
Power Supply Current
Standby (SHD tied low, V IN = 3.6 V, SYN tied low) T A = 25 ° C
T A = ? 40 ° C to 85 ° C
PWM Mode (SHD tied high, V IN = 3.6 V, V out = 1.6 V, V CB0 = V CB1 = 0 V,
SYN @ 600 kHz/50% duty cycle, I out = 0 mA)
Linear Mode (SHD tied high, V IN = 3.6 V, V out = 1.5 V, SYN tied low,
I out = 0 mA)
I CC
?
?
?
?
0.18
?
96
30
0.5
10
150
70
m A
http://onsemi.com
3
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