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SC630AULTRT

P1-P3P4-P6P7-P9P10-P12P13-P15
POWER MANAGEMENT
1
SC630A
1MHz Fixed 3.3V Output
Charge Pump Regulator
Features
Input voltage range — 2.95V to 5.5V
V
OUT
tolerance — 3.3V ±3%
Continuous output current — 300mA max
Three charge pump modes — 1x, 1.5x and 2x
Output ripple voltage — 33mV
PP
, typical
Short circuit, over-voltage, and over-temperature
protection
Soft-start functionality
Shutdown current — 0.1µA, typical
Ultra thin package — 2 x 2 x 0.6 (mm)
Lead-free and halogen-free
WEEE and RoHS compliant
Applications
Mobile phones
Tablets
USB On-The-Go
Multi-LED backlit LCDs
Compact ash/CF+ products
Digital video cameras
DVI/HDMI ports
Wi-Fi base stations
Modems
Set-top boxes
Description
The SC630A is a high-current voltage regulator using
Semtech’s proprietary low-noise charge pump technol-
ogy. The charge pump provides a low EMI solution
compared to inductive boost regulators. Performance is
optimized for use in single Li-Ion battery cell applications.
The regulator provides the performance of a linear, low
drop-out (LDO) voltage regulator when the battery is
greater than 3.3V. Unlike an LDO, drop-out is avoided
when the battery is less than 3.3V. Instead, a charge pump
is activated to provide voltage boost and the head-room
needed for regulation.
The SC630A’s charge pump has three modes of operation:
2x, 1.5x, and 1x modes. The 2x and 1.5x modes deliver
current to the load in each of two phases. The 1x mode
turns o the charge pump, delivering current through an
LDO. Hysteresis is provided to prevent chatter between
charge pump modes. When active, the charge pump pro-
vides low-ripple operation at 1MHz. Typically the output
ripple is 1% of the output voltage — 33mVpp at 215mA.
A small 2.2µF capacitor is recommended for all four capaci-
tors. The full rated output current is provided when 2.2µF
is used for both bucket capacitors. At the output, a 2.2µF
capacitor decouples the load and provides smoothing for
mode transitions, while another 2.2µF is used to decouple
the input.
SC630A
V
BAT
V
OUT
= 3.3V @ 300mA
OUT
C1+
IN
GND
EN
C1-
C2+
C2-
C
IN
2.2µF
C
OUT
2.2µF
C
1
2.2µF
C
2
2.2µF
Chip
enable
Typical Application Circuit
Rev. 1.1
US Patent: 7,808,220
© 2011 Semtech Corporation
SC630A
2
Pin Conguration
Marking Information
Ordering Information
Device Package
SC630AULTRT
(1)(2)
MLPD-UT-8 2x2
SC630AEVB Evaluation Board
Notes:
(1) Available in tape and reel only. A reel contains 3,000 devices.
(2) Lead-free package only. Device is WEEE and RoHS compliant and
halogen free.
TOP VIEW
T
1
2
4
5
63
7
8
C2+
C2-
OUT
EN
GND
C1+
C1-
IN
K0A
yw
MLPD-UT-8; 2x2, 8 LEAD
θ
JA
= 68°C/W
yw = Datecode
SC630A
3
Exceeding the above specications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specied in the Electrical Characteristics section is not recommended.
NOTES
(1) Tested according to JEDEC standard JESD22-A114-B.
(2) Calculated from package in still air, mounted to 3 x 4.5 (in), 4 layer FR4 PCB with thermal vias under the exposed pad per JESD51 standards.
Absolute Maximum Ratings
IN, OUT (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +6.0
C1+, C2+ (V) . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3 to (V
OUT
+ 0.3)
Pin Voltage - All Other Pins (V) . . . . . . . . . . . -0.3 to (V
IN
+ 0.3)
OUT Short Circuit Duration . . . . . . . . . . . . . . . . . Continuous
ESD Protection Level
(1)
(kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Recommended Operating Conditions
Ambient Temperature Range (°C) . . . . . . . . -40 < T
A
< +85
IN (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.95 < V
IN
< 5.5
Thermal Information
Thermal Resistance, Junction to Ambient
(2)
(°C/W) . . . . .
68
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . . -65 to +150
Peak IR Reflow Temperature (10s to 30s) (°C) . . . . . . . +260
Unless otherwise specied: T
A
= +25°C for Typ, -40°C to +85°C for Min and Max; C
1
= C
2
= 2.2µF (ESR < 0.03Ω); C
IN
= C
OUT
= 22µF; V
IN
= 2.95V to 5.5V
Parameter Symbol Condition Min Typ Max Units
Output Voltage V
OUT
V
IN
= 4.2V, I
OUT
= 1mA 3.2 3.3 3.4 V
Output Voltage Ripple V
PP
I
OUT
= 215mA 33 mV
Continuous Load, 2.95V ≤ V
IN
≤ 5.5V, 1x or 1.5x mode 300 mA
Shutdown Current I
SD
Shutdown (EN = GND), V
IN
= 3.6V 0.1 2 µA
Total Quiescent Current I
Q
EN high, I
OUT
= 1mA 2.5 3.5 mA
Charge Pump Frequency f
PUMP
V
IN
= 3.2V 1 MHz
Start-Up Time t
SU
(EN transitions from low to high),
3.2V ≤ V
OUT
≤ 3.4V, No load
400 µs
Line Regulation ΔV
LINE
I
OUT
= 1mA, 2.95V ≤ V
IN
≤ 4.2V 21 mV
Load Regulation ΔV
LOAD
V
IN
Fixed, 1mA ≤ I
OUT
≤ 300mA 25 mV
EN Input High Threshold V
IH
V
IN
= 5.5V 1.6 V
EN Input Low Threshold V
IL
V
IN
= 2.7V 0.4 V
EN Input High Current I
IH
V
IN
= 5.5V 2 µA
Electrical Characteristics
P1-P3P4-P6P7-P9P10-P12P13-P15

SC630AULTRT

Mfr. #:
Buy SC630AULTRT
Manufacturer:
Semtech
Description:
Switching Voltage Regulators 3.3V CHARGE PUMP REG
Lifecycle:
New from this manufacturer.
Delivery:
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