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LDO Regulator
ECN No: 11-0014 PT0338S-1 01/13/11
1
PT7M8202
Features
• Output Current 300mA or more
• Ultra-Low-Noise for RF Application:
• 30µVRMS @1.2V
• Quick Start-Up (Typically 50µs)
• Dropout Voltage: 270mV@300mA for 3.3V
• Wide Operating Voltage Range: 1.8V to 5.5V
• Output Voltage Range: 1.2V to 3.3V(100 mV Step)
• Standby Current: 0.1µA
• High Ripple Rejection: 80dB@1kHz
• Output Current-Limit Protection
• Thermal Shutdown Protection
• Operating Temperature Range: -40℃~+85℃
• Low ESR Capacitor compatible: Ceramic capacitor
• Lead Free and Green Package: SOT23-5L, SC70-5L,
TDFN-6L 1.8×2
Pin Configuration
SC70-5L/SOT23-5L (Top View)
TDFN-6L 1.8x2 (Top View)
Description
The PT7M8202 series are highly accurate, low dropout
voltage regulators with low noise, high ripple rejection
and low current consumption for portable RF and
wireless applications.
The PT7M8202 includes a reference voltage source, an
error amplifier, a driver transistor, a current limit
protection,a thermal protection and an internal phase
compensator.
A noise bypass pin is available for further reduction of
output noise.
The output voltage for the regulator is set by factory
trimming within a range of 1.2V to 3.3V in 100mV step
includes 2.85V. The PT7M8202 series are stable with
low ESR ceramic capacitors.
Applications
• Mobile phones (PDC, GSM, CDMA, IMT2000 etc.)
• Cordless phones and radio communication
• Digital still cameras and video cameras
• PDAs
• MP3 players
• Portable devices
Pin Description
Pin No. for
SOT23-5L/SC70-5L
TDFN-6L I/O Name Descriptions
1 1 I VIN
Regulator Supply Input. Supply voltage can range from
1.8V to 5.5V. Bypass with a 1µF ceramic capacitor
(X5R/X7R) to GND.
2 5 P GND Ground.
3 6 I EN ON/OFF Control of Regulator.
4 4 - BP Reference Noise Bypass.
5 3 O VOUT
Output of Regulator. Bypass with a 1µF ceramic
capacitor (X5R/X7R) to GND.
- 2 - NC
No Connection.
BP
VOUT
GND
EN
2
3
4
1
5
VIN
VIN 1
NC 2
VOUT 3
6 EN
4 BP
5
GND