VIN
SW
FB
CSS
GND
PG
MODE
EN
L
1 μH
R
PG
100 kΩ
C
SS
0.1 μF
V
IN
C
IN
4.7 μF
C
OUT
10 μF
V
OUT
NC2600xxxxx
A/B/C/D
V
PG
VIN
SW
FB
CSS
GND
PG
MODE
EN
R
11
220 kΩ
R
2
220 kΩ
L
1 μH
C
1
10 pF
R
PG
100 kΩ
C
SS
0.1 μF
V
IN
C
IN
4.7 μF
C
OUT
10 μF
V
OUT
R
12
220 kΩ
NC2600xx000
A/B/C/D
R
0
1 kΩ
V
PG
0
20
40
60
80
100
0.01 0.1 1 10 100 1000 10000
Efficiency [%]
Output Current I
OUT
[mA]
Vin=2.5V
Vin=3.3l
Vin=3.6V
Vin=4.2V
Vin=5.0V
MODE=L
MODE=H
V
IN
= 2.5 V
V
IN
= 3.3 V
V
IN
= 3.6 V
V
IN
= 4.2 V
V
IN
= 5.0 V
1/6
NC2600-EV-220929
2A Low Quiescent Current PWM/PFM
Step-down Switching Regulator
Mobile communication devices: Mobile phone, Smartphone
Digital camera, Laptop
Devices using lithium-ion batteries
WLCSP-8-P11
1.62 x 0.98 x 0.4 (mm)
Peak efficiency of 95% achieves high light and heavy load efficiency.
High switching frequency of 4.0 MHz saves space including peripheral circuits.
WLCSP-8-P11 package achieves the high-density mounting.
The power good function and variable soft start make sequence control easier.
Input Voltage Range (Maximum Rating): 2.3 V to 5.5 V (6.5 V)
Operating Temperature Range: -40°C to 85°C
Output Voltage (Fixed Output Voltage Type): 0.6 V to 3.3 V
(Adjustable Output Voltage Type): 0.6 V to 5.5 V
Output Voltage Accuracy: ±1.5% (V
SET
≥ 1.2 V), ±18 mV (V
SET
< 1.2 V)
Feedback Voltage Accuracy: ± 9 mV
Quiescent Current: Typ. 17µA
Switching Frequency: Typ. 4.0 MHz (V
SET = 1.8V)
UVLO Detection Voltage: Typ. 2.0V
Soft-Start Time: Typ. 0.15 ms (When CSS is open.)
Configurable with External Capacitor
Thermal Shutdown Function: Detection Temperature Typ. 150 °C
Release Temperature Typ. 120 °C
Auto Discharge Function, Latch Protection Function
KEY SPECIFICATIONS
PACKAGE
TYPICAL CHARACTERISTICS
APPLICATIONS
DFN2020-8-GT
2.0 x 2.0 x 0.6 (mm)
(Under Development)
TYPICAL APPLICATIONS
Adjustable Output Voltage Type
Fixed Output Voltage Type
EFFICIENCY
V
SET = 1.8V
2/6
NC2600-EV-220929
2A Low Quiescent Current PWM/PFM
Step-down Switching Regulator
Peak efficiency of 95% achieves high light and heavy load efficiency.
Our Solution
Want a high efficiency IC for any load.
NC2600 can achieve high efficiency at both light and heavy loads by PWM/PFM automatic switching.
Efficiency
V
SET
=1.2V、V
IN
=2.5V/3.3V/3.6V/4.2V/5.0V
Efficiency
V
SET
=3.3V、V
IN
=4.2V/5.0V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000 10000
Efficiency [%]
Output Current I
OUT
[mA]
Vin=4.2V
Vin=5.0V
V
IN
= 4.2 V
V
IN
= 5.0 V
MODE=H
MODE=L
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000 10000
Efficiency [%]
Output Current I
OUT
[mA]
Vin=2.5V
Vin=3.3V
Vin=3.6V
Vin=4.2V
Vin=5.0V
MODE=H
MODE=L
V
IN
= 2.5 V
V
IN
= 3.3 V
V
IN
= 3.6 V
V
IN
= 4.2 V
V
IN
= 5.0 V
General Issue