DC/DC Converter. RP6500 Datasheet

RP6500 Converter. Datasheet pdf. Equivalent

RP6500 Datasheet
Recommendation RP6500 Datasheet
Part RP6500
Description VFM Step-up DC/DC Converter
Feature RP6500; Preliminary RP6500 VFM Step-up DC/DC Converter General Description The RP6500 Series are VFM Step.
Manufacture RICHPOWER
Datasheet
Download RP6500 Datasheet




RICHPOWER RP6500
Preliminary
RP6500
VFM Step-up DC/DC Converter
General Description
The RP6500 Series are VFM Step-up DC/DC converter
ICs with ultra low supply current by CMOS process and
suitable for use with battery-powered instruments.
The RP6500 IC consists of an oscillator, a VFM control
circuit, a driver transistor (LX switch), a reference voltage
unit, an error amplifier, resistors for voltage detection, and
a LX switch protection circuit. A low ripple and high
efficiency step-up DC/DC converter can be constructed
with the RP6500 IC and only three external components.
Ordering Information
RP6500-
Package Type
B : SOT-23-5
X : SOT-89
Operating Temperature Range
G : Green (Halogen Free with Comme-
-rcial Standard )
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
Note :
Richpower Green products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
For marking information, contact our sales representative
directly or through a Richpower distributor located in your
area.
Features
Minimal Number of External Components (Only an
Inductor, a Diode, and a Capacitor)
Ultra Low Input Current (6.5µA at Switch Off)
Capable of Supplying 150mA Output Current with
Internal Switch
± 2% Output Voltage Accuracy
Low Ripple and Low Noise
Low Start-up Voltage, 0.85V at 1mA
80% Efficiency with Low Cost Inductor
+50 ppm/° C Low Temperature-Drift
SOT-89 and SOT-23-5 Small Packages
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Power source for battery-powered equipment
Power source for cameras, camcorders, VCRs, PDAs,
pagers, electronic data banks, and hand-held
communication equipment
Power source for appliances, which require higher
voltage than that of batteries used in the appliances
Pin Configurations
(TOP VIEW)
1 23
GND VOUT LX
(TAB)
SOT-89
EN 1 5 LX
VOUT
2
NC 3 4 GND
SOT-23-5
RP6500-05P Oct 2009
1



RICHPOWER RP6500
RP6500
Typical Application Circuit
L1
VIN
Preliminary
D1
1N5819
RP6500
LX VOUT
GND
VOUT
COUT
47uF
L1
VIN
D1
1N5819
RP6500
LX VOUT
EN GND
VOUT
COUT
47uF
* L1 ranges from 10µH to 47µH
Functional Pin Description
Pin No.
Pin Name
SOT-89 SOT-23-5
Pin Function
1
4 GND
Ground.
2
2 VOUT
Output Voltage.
3 5 LX Pin for Switching.
-- 1 EN Chip Enable (Active High).
-- 3 NC No Connection.
Function Block Diagram
LX
GND
VLX Limiter
LXSW
Buffer
VREF
OSC 250kHz
Chip Enable
+
-
Error
Amplifier
EN
VOUT
2 RP6500-05P Oct 2009



RICHPOWER RP6500
Preliminary
RP6500
Absolute Maximum Ratings
Output Voltage ------------------------------------------------------------------------------------------------------ 6V
LX Pin Voltage ------------------------------------------------------------------------------------------------------- 6V
Power Dissipation, PD @ TA = 25° C
SOT-23-5 -------------------------------------------------------------------------------------------------------------- 0.25W
SOT-89 ---------------------------------------------------------------------------------------------------------------- 0.5W
Package Thermal Resistance
SOT-89, θJC ---------------------------------------------------------------------------------------------------------- 100° C/W
SOT-89, θJA ---------------------------------------------------------------------------------------------------------- 300° C/W
SOT-23-5, θJA -------------------------------------------------------------------------------------------------------- 250° C/W
Operating Temperature Range ----------------------------------------------------------------------------------- 20 to +85° C
Storage Temperature Range -------------------------------------------------------------------------------------- 65° C to 150° C
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260° C
Electrical Characteristics
Parameter
Symbol
Test Conditions
Min Typ Max Units
Output Voltage Accuracy
Input Voltage
Start-up Voltage
Hold-on Voltage
Efficiency
LX switch on
Resistance
VOUT 3.5V (1)
3.5V < VOUT 5V (2)
Input Current 1
VOUT
VIN
VST
VHO
IOUT = 1mA, VIN: 0 2V
IOUT = 1mA, VIN: 2 0V
-2 -- +2
-- -- 6
-- 0.85 1.0
0.7 -- --
-- 80 --
RON VLX = 0.4V
-- -- 2
-- -- 1.5
IQ Measure at VIN in switching -- 6.5 10
off
%
V
V
V
%
µA
Input Current 2
VOUT 3.5V (1)
3.5V < VOUT 5V (2)
IOUT
IOUT
-- 18 36
Measure at VOUT in no load
µA
-- 20 45
LX Leakage Current
Enable Threshold
Enable Input Current
Maximum Oscillator Frequency
ILEAKAGE VLX = 6V
VIL VIN = VOUT * 0.9
VIH VIN = VOUT * 0.9
IEN
FMAX
VEN from 0 to 5.5V
-- 50 -- µA
-- -- 0.2
V
1 -- --
-- 0.5 -- µA
150 250 350 kHz
Oscillator Duty Cycle
VLX Voltage Limit
DOSC
LX Switch On
65 75 85
-- 0.65 --
%
V
Notes:
(1) VIN = 1.8V, VSS = 0V, IOUT = 1mA, Topt = 25° C, and use External Circuit of Typical Application
(2) VIN = 3V, VSS = 0V, IOUT = 1mA, Topt= 25° C, and External Circuit of Typical Application
RP6500-05P Oct 2009
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