LinearVoltageRegulators Motorola Semiconductor Products, LinearVoltageRegulators Datasheet - Page 10

• Manufacturer Part Number: LinearVoltageRegulators
• Description: Analog And Interface Integratedcircuits Selector Guide & Cross Reference
• Manufacturer: Motorola Semiconductor Products

GaAs Power Amplifier Support IC
MC33169DTB
T A = –40 to +85 C, Case 948G
Power Amplifier Enhanced FETs used in
hand portable telephones such as GSM,
PCN and DECT. This device provides
negative voltages for full depletion of
Enhanced MESFETs as well as a priority
management system of drain switching,
ensuring that the negative voltage is always
present before turning “on” the Power
Amplifier. Additional features include an
idle mode input and a direct drive of the
N–Channel drain switch transistor.
– 2.5 and – 4.0 V. The – 4.0 V version is
intended for supplying RF modules for
GSM and DCS1800 applications, whereas
the – 2.5 V version is dedicated for DECT
and PHS systems.
ANALOG AND INTERFACE INTEGRATED CIRCUITS
SELECTOR GUIDE & CROSS REFERENCE
Negative Regulated Output for Full
Drain Switch Priority Management
CMOS Compatible Inputs
Idle Mode Input (Standby Mode) for
Output Signal Directly Drives
Low Startup and Operating Current
Depletion of GaAs MESFETs
Circuit
Very Low Current Consumption
N–Channel FET
The MC33169 is a support IC for GaAs
This product is available in two versions,
Triple
T x Power
V BB
Mode Input
Control
V BB Double
Input
Gnd
11
+
–
Idle
C4
13
3
+
9
6
C1
–
(Voltage Tripler)
12
Generator
2
+
7
C3
V BB
–
Charge
Pump
–
C2
C p
+
+
1
Sense
(– 2.5 V or – 4.0 V)
5
Management
Priority
V CC
Output
14
V O
Generator
Negative
4
MC33169
–
C i
+
8
Gate Drive Output
Sense Input
10
RF
In
Power Amplifier
R f
MOTOROLA
+
MMSF4N01HD
C f
+
(2.7 to 7.0 V)
V Battery
39
RF
Out