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SC631ULTRT

P1-P3P4-P6P7-P9P10-P12P13-P14
SC631
7
Ripple — 1x Mode
Time (10µs/div)
V
IN -PP
(20mV/div)
V
OUT -PP
(20mV/div)
I
OUT
(200mA/div)
V
IN
= 5.2V, V
OUT
= 4.4V, I
OUT
= 400mA
C
IN
=C
OUT
=22µF (0805)
C
1
=C
2
=2.2µF (0603)
Ripple — 1.5x Mode
Ripple — 2x Mode
V
IN -PP
(100mV/div)
V
OUT -PP
(100mV/div)
I
OUT
(200mA/div)
V
IN -PP
(50mV/div)
V
OUT -PP
(50mV/div)
I
OUT
(200mA/div)
Time (10µs/div)
Time (10µs/div)
C
IN
=C
OUT
=22µF (0805)
C
1
=C
2
=2.2µF (0603)
C
IN
=C
OUT
=22µF (0805)
C
1
=C
2
=2.2µF (0603)
0mA
400mA
V
IN
= 4.2V, V
OUT
= 4.4V, I
OUT
= 400mA
V
IN
= 3.2V, V
OUT
= 4.4V, I
OUT
= 400mA
0mA
400mA
0mA
400mA
Startup (No Load)
V
IN
= 3.6V, I
OUT
= 0mA
V
EN
(2V/div)–
0V—
V
OUT
(2V/div)–
0V—
0V—
I
OUT
(200mA/div)
Startup (400mA)
V
IN
= 3.6V, I
OUT
= 400mA
V
EN
(2V/div)–
0V —
V
OUT
(2V/div)–
0V—
0V—
I
OUT
(200mA/div)–
Typical Characteristics (continued)
Time (200µs/div)
Time (200µs/div)
Quiescent Current
V
OUT
= 5V, I
OUT
= 1mA
0.5
1.0
1.5
2.0
2.5
2.903.163.423.683.944.20
-45C
25C85C
V
IN
(V)
I
Q
(mA)
C
IN
=C
OUT
=22µF (0805)
C
1
=C
2
=2.2µF (0603)
C
IN
=C
OUT
=22µF (0805)
C
1
=C
2
=2.2µF (0603)
SC631
8
Pin Descriptions
Pin Pin Name Pin Function
1 GND
Ground
— connect to ground plane with multiple vias
2 C1+ Positive terminal of bucket capacitor 1
3 C1- Negative terminal of bucket capacitor 1
4 IN Input supply voltage
5EN
Chip enable
— active-high
6 OUT Output
7 C2+ Positive terminal of bucket capacitor 2
8 C2- Negative terminal of bucket capacitor 2
T Thermal Pad
This pad is for heat sinking and is not connected internally. It must be connected to a ground plane using
multiple vias.
SC631
9
Block Diagram
CHARGE
PUMP
200kHz
Logic
Control
Reference
Voltage
Generator
LDO
C1+
C1-
C2-
OUT
IN
EN
GND
C2+
5
7
4
2
3
8
6
1
P1-P3P4-P6P7-P9P10-P12P13-P14

SC631ULTRT

Mfr. #:
Buy SC631ULTRT
Manufacturer:
Semtech
Description:
Switching Voltage Regulators 3.6V CHARGE PUMP REG
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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