EVALUATION
KIT
AVAILABLE
TC7660H
HIGH FREQUENCY 7660 DC-TO-DC VOLTAGE CONVERTER
FEATURES
s
s
s
s
s
s
s
Pin Compatible with 7660, High Frequency
Performance DC-to-DC Converter
Low Cost, Two Low Value External Capacitors
Required ........................................................ (1.0
碌
F)
Converts +5V Logic Supply to
鹵
5V System
Wide Input Voltage Range .................... 1.5V to 10V
Voltage Conversion ........................................ 99.7%
Power Efficiency ................................................ 85%
Available in 8-Pin SOIC and 8-Pin PDIP Packages
GENERAL DESCRIPTION
The TC7660H is a pin-compatible, high frequency up-
grade to the Industry standard TC7660 charge pump volt-
age converter. It converts a +1.5V to +10V input to a
corresponding 鈥?1.5V to 鈥?10V output using only two low-
cost capacitors, eliminating inductors and their associated
cost, size and EMI.
The TC7660H operates at a frequency of 120kHz
(versus 10kHz for the TC7660), allowing the use of 1.0碌F
external capacitors. Oscillator frequency can be reduced
(for lower supply current applications) by connecting an
external capacitor from OSC to ground.
The TC7660H is available in 8-pin DIP and small
outline (SOIC) packages in commercial and extended
temperature ranges.
PIN CONFIGURATION
(DIP and SOIC)
NC
1
8
V+
CAP + 2
GND
3
TC7660HCPA
TC7660HEPA
7 OSC
6
LOW
VOLTAGE (LV)
5 VOUT
ORDERING INFORMATION
Part No.
TC7660HCOA
TC7660HCPA
TC7660HEOA
TC7660HEPA
TC7660EV
CAP 鈥?4
Package
8-Pin SOIC
8-Pin Plastic DIP
8-Pin SOIC
Temperature
Range
0擄C to +70擄C
0擄C to +70擄C
鈥?40擄C to +85擄C
NC
CAP +
GND
CAP 鈥?/div>
1
2
3
4
TC7660HCOA
TC7660HEOA
8
7
6
5
V+
OSC
LOW
VOLTAGE (LV)
VOUT
8-Pin Plastic DIP
鈥?40擄C to +85擄C
Evaluation Kit for
Charge Pump Family
NC = NO INTERNAL CONNECTION
FUNCTIONAL BLOCK DIAGRAM
V + CAP +
8
2
OSC
7
RC
OSCILLATOR
梅
2
VOLTAGE鈥?/div>
LEVEL
TRANSLATOR
4
CAP 鈥?/div>
LV
6
5
INTERNAL
VOLTAGE
REGULATOR
LOGIC
NETWORK
VOUT
TC7660H
3
GND
漏 2001 Microchip Technology Inc.
DS21466A
TC7660H-2 10/1/96
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