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FAN48632 の電気的特性と機能

FAN48632のメーカーはFairchild Semiconductorです、この部品の機能は「2.0A Pulsed-Load Synchronous TinyBoost Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号 FAN48632
部品説明 2.0A Pulsed-Load Synchronous TinyBoost Regulator
メーカ Fairchild Semiconductor
ロゴ Fairchild Semiconductor ロゴ 




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FAN48632 Datasheet, FAN48632 PDF,ピン配置, 機能
April 2014
FAN48632
2.5 MHz, 2.0 A Pulsed-Load Synchronous TinyBoost™
Regulator with Bypass Mode for GSM PA Supply
Features
Few External Components: 0.47 µH Inductor and
0603 Case Size Input and Output Capacitors
Input Voltage Range: 2.35 V to 5.5 V
Fixed Output Voltage : 3.3 V, 3.5 V
Maximum Continuous Load Current of: 1.5 A
at VIN of 2.6 V
Maximum Pulsed Load current :of 2.0 A for GSM 217 Hz
repetition rate ,boosting VOUT to 3.3 V or 3.5 V
Up to 96% Efficient
True Bypass Operation when VIN > Target VOUT
Internal Synchronous Rectifier
Soft-Start with True Load Disconnect
Forced Bypass Mode
VSEL Control to Optimize Target VOUT
Short-Circuit Protection
Low Operating Quiescent Current
16-Bump, 0.4 mm Pitch WLCSP
Applications
Boost for Low-Voltage Li-ion Batteries, Brownout
Prevention, Supply GSM RF PA.
Cell Phones, Smart Phones, Tablets
Description
The FAN48632 allows systems to take advantage of new
battery chemistries that can supply significant energy when
the battery voltage is lower than the required voltage for
system power ICs. By combining built-in power transistors,
synchronous rectification, and low supply current; this IC
provides a compact solution for systems using advanced
Li-Ion battery chemistries.
The FAN48632 is a boost regulator designed to provide a
minimum output voltage (VOUT(MIN)) from a single-cell Li-Ion
battery, even when the battery voltage is below system
minimum. In boost mode, output voltage regulation is
guaranteed to a maximum load current of 1.5 A continuous
and 2.0 A pulsed. Quiescent current in Shutdown Mode is less
than 3 µA, which maximizes battery life. The regulator
transitions smoothly between Bypass and normal Boost Mode.
The device can be forced into Bypass Mode to reduce
quiescent current.
The FAN48632 is available in a 16-bump, 0.4 mm pitch,
Wafer-Level Chip-Scale Package (WLCSP).
+
Battery
0.47H
VIN
CIN
10F
SW
VSEL
EN
BYP
FAN48632
VOUT
COUT
40F
PGND
AGND
PG
SYSTEM
LOAD
Figure 1. Typical Application
Ordering Information
Part Number
Output Voltage
VSEL0 / VSEL1
Soft-Start
Forced Operating
Bypass Temperature
Package
Packing
FAN48632UC33X
FAN48632BUC33X(1)
3.30 / 3.49
3.30 / 3.49
FAST
FAST
Low IQ
Low IQ
FAN48632UC35X
3.50 / 3.70
FAST
Low IQ
Note:
1. The FAN48632BUC33X includes backside lamination.
16-Ball, 4x4 Array, 0.4 mm
-40°C to 85°C Pitch, 250 µm Ball, Wafer-Level
Chip-Scale Package (WLCSP)
Tape
and
Reel
© 2013 Fairchild Semiconductor Corporation
FAN48632 • Rev. 1.0.3
www.fairchildsemi.com

1 Page





FAN48632 pdf, ピン配列
Pin Configuration
EN PG
VIN
A1 A2 A3 A4
VSEL AGND
VOUT
B1 B2 B3 B4
BYP
C1 C2
SW
C3 C4
AGND
PGND
D1 D2 D3 D4
Figure 3. Top Through View (Bumps Down)
A4 A3 A2 A1
B4 B3 B2 B1
C4 C3 C2 C1
D4 D3 D2 D1
Figure 4. Bottom View (Bumps Up)
Pin Definitions
Pin #
Name
Description
A1 EN Enable. When this pin is HIGH, the circuit is enabled.(2)
A2
A3A4
PG
Power Good. This is an open-drain output. PG is actively pulled LOW if output falls out of
regulation due to overload or if thermal protection threshold is exceeded.
VIN Input Voltage. Connect to Li-Ion battery input power source.(2)
B1 VSEL Output Voltage Select. When boost is running, this pin can be used to select output voltage.
B2, C2
D1
AGND
Analog Ground. This is the signal ground reference for the IC. All voltage levels are measured
with respect to this pin.
B3B4
VOUT Output Voltage. Place COUT as close as possible to the device.
C1
Bypass. This pin can be used to activate Forced Bypass Mode. When this pin is LOW, the
BYP bypass switches (Q3 and Q1) are turned on and the IC is otherwise inactive.
C3C4
SW Switching Node. Connect to inductor.
D2D4
PGND
Power Ground. This is the power return for the IC. The COUT bypass capacitor should be
returned with the shortest path possible to these pins.
Note:
2. The EN pin can be tied to VIN, but it is recommended to tie EN to the 1.8 V logic voltage.
© 2013 Fairchild Semiconductor Corporation
FAN48632 • Rev. 1.0.3
3
www.fairchildsemi.com


3Pages


FAN48632 電子部品, 半導体
Typical Characteristics
Unless otherwise specified; VIN = 3.0 V,VOUT = 3.5 V, VSEL=0 V,and TA = 25°C; circuit and components according to Figure 1.
100%
100%
95%
95%
90%
90%
85%
80%
75%
70%
0
2.5 VIN
2.7 VIN
3.0 VIN
3.3 VIN
3.0 VIN, VSEL1
500 1000
Load Current (mA)
Pulse Load only
1500
2000
Figure 5. Efficiency vs. Load Current and Input Voltage
85%
80%
75%
70%
0
- 40C
+25C
+85C
500 1000
Pulse Load only
1500
2000
Load Current (mA)
Figure 6. Efficiency vs. Load Current and Temperature
100%
100%
95%
95%
90%
90%
85%
85%
80%
75%
70%
0
2.5 VIN
2.7 VIN
3.0 VIN
3.0 VIN, VSEL1
500 1000
Load Current (mA)
Pulse Load only
1500
2000
Figure 7. Efficiency vs. Load Current and Input Voltage,
VOUT=3.3 V
80%
75%
70%
0
- 40C
+25C
+85C
500 1000
Pulse Load only
1500
2000
Load Current (mA)
Figure 8. Efficiency vs. Load Current and Temperature,
VOUT=3.3 V
33
2.5 VIN
2.7 VIN
2
3.0 VIN
2
3.3 VIN
- 40C
+25C
+85C
11
00
-1
-2
0
Pulse Load only
500
1000
1500
2000
Load Current (mA)
Figure 9. Output Regulation vs. Load Current and Input
Voltage (Normalized to 3.0 VIN, 500 mA Load)
-1
-2
0
Pulse Load only
500
1000
1500
2000
Load Current (mA)
Figure 10. Output Regulation vs. Load Current and
Temperature (Normalized to 3.0 VIN, 500 mA Load,
TA=25°C)
© 2013 Fairchild Semiconductor Corporation
FAN48632 • Rev. 1.0.3
6
www.fairchildsemi.com

6 Page



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共有リンク

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部品番号部品説明メーカ
FAN48630

Synchronous TinyBoost Regulator

Fairchild Semiconductor
Fairchild Semiconductor
FAN48632

2.0A Pulsed-Load Synchronous TinyBoost Regulator

Fairchild Semiconductor
Fairchild Semiconductor


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