BL9193 Datasheet, PDF (1/13 Pages) SHANGHAI BELLING CO., LTD. – 300mA Ultra-low Noise, Ultra-Fast

BL9193
300mA Ultra-low Noise, Ultra-Fast
CMOS LDO Regulator
FEATURES
Ultra-low Noise for RF Application
Ultra-Fast Response in Line/Load
Transient
Quick Start-Up (Typically 50µS)
<0.01µA Standby Current When
Shutdown.
Low Dropout:210mV@300mA
Wide Operating Voltage Ranges:2V to
6V
TTL-logic-Controlled Shutdown Input
Low Temperature Coefficient
Current Limiting Protection
Thermal Shutdown Protection
Only 1µF Output Capacitor Required for
Stability
High Power Supply Rejection Ratio
Custom Voltage Available
Fast output discharge
Available in 5-Lead SOT-23 and SC-70
Package
APPLICATIONS
Cellular and Smart Phones
Battery-Powered Equipment
Laptop, Palmtops,Notebook Computers
Hand-Held Instruments
PCMCIA Cards
MP3/MP4/MP5 Players
Portable Information Appliances
DESCRIPTION
The BL9193 is designed for portable RF and
wireless applications with demanding perfor-
mance and space requirements. The BL9193
performance is optimized for battery-powered
systems to deliver ultra low noise and low
quiescent current. A noise bypass pin is
available for further reduction of output noise.
Regulator ground current increases only
slightly in dropout, further prolonging the
battery life. The BL9193 also works with low-
ESR ceramic capacitors, reducing the
amount of board space necessary for power
applications, critical in hand-held wireless
devices. The BL9193 consumes less than
0.01µA in shutdown mode and has fast turn-
on time less than 50µs. The other features
include ultra low dropout voltage, high output
accuracy, current limiting protection, and high
ripple rejection ratio. Available in the 5-lead of
SC-70, SOT-23 packages.
ORDERING INFORMATION
TYPICAL APPLICATION
BL9193 XX X X X XXX
VIN
1
VIN
VOUT ⁵
VOUT
Package:
RN: SOT-23-5
URN: SC-70-5
Features
P: Standard (default, lead free)
C: Customized
C1
1uF
Chip
Enable
2 _GND
BL9193
3 _EN
BP ⁴
C2
1uF
C3
Enable Option:
A: active high with internal 8 MΩ pull down
22nF
B: active high with external pull down
C: active low with internal 2 MΩ pull up
D: active low with external pull up
Output Voltage Accuracy
A: ±1%
Application hints:
≥ Output capacitor (C2 2.2uF) is recommended
， ， in BL9193-1.2V BL9193-1.5V BL9193-
B: ±2%
1.8V application to assure the stability of circuit.
Output Voltage:
12:1.2V 15:1.5V 18:1.8V 25:2.5V
28:2.8V 30:3.0V 33:3.3V
CT: custom fixed output (50mV step)
AD: Adjustable
PPMIC BU
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1
BL9193 Rev 2.2
Belling Proprietary Information. Unauthorized Photocopy and Duplication Prohibited
1/2011
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